Fits select 2005-2020 Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac, and Saab vehicles (LS2 / LS3 / LS7).

The Granatelli Gen IV LS Cast Valley Pan Cover is a high-strength, cast aluminum solution for sealing the engine valley on GM Gen IV engines. Specifically designed for applications without Displacement on Demand (D.O.D.) or Active Fuel Management (AFM) provisions, this cover provides a clean, professional finish for performance builds and engine swaps. It serves as a direct replacement for GM OEM part number 12598832, bolting directly to the factory mounting points.

Every kit comes complete with an OEM-style perimeter gasket and all necessary mounting hardware to ensure a secure, leak-free seal during installation.

• Compatible Engine Families: GM Gen IV LS2, LS3, and LS7
• No D.O.D. / AFM provisions
• Direct replacement for GM part number 12598832
• Cast construction for increased rigidity and durability
• Includes perimeter gasket and required installation hardware
• Manufacturer Part Number: 595003

The Granatelli Motor Sports Connecting Rod Vise (MPN 540104) is a precision shop tool designed to securely hold connecting rods during critical engine assembly and teardown. By providing a stable, non-marring grip on the rod beam, this tool allows engine builders to accurately torque rod bolts or install pistons without risking surface damage or component distortion.

Essential for any performance engine build, this vise ensures the rod remains stationary under high torque loads, preventing the rod from twisting or slipping during fastener installation. It is designed to be easily mounted in a standard bench vise, making it a staple for professional machine shops and dedicated home garages alike.

• Securely holds connecting rods for bolt torquing and piston installation
• Prevents rod twisting and surface marring during assembly
• Designed for use with standard bench vises
• Heavy-duty construction for professional shop environments
• Manufacturer Part Number: 540104

Fits select 2008-2017 Cadillac CTS-V and Escalade, Chevrolet Camaro, Corvette, Silverado, SS, and Tahoe, GMC Sierra and Yukon, and Pontiac G8 GXP.

The Granatelli 160 Degree Thermostat is a direct-replacement performance upgrade for GM LS-based engines. By opening at a lower temperature than the factory unit, this thermostat allows coolant to circulate through the radiator earlier, effectively lowering the engine's operating temperature. This is essential for high-performance applications, heavy towing, or vehicles operating in high-ambient-heat environments where thermal management is critical.

• Opening Temperature: 160°F (71°C)
• Replaces restrictive factory-temperature thermostats
• Constructed for a precise fit within the OEM housing
• Helps reduce the risk of heat soak and improves thermal efficiency
• Manufacturer Part Number: 53060S

Fits select 2014-2020 Cadillac Escalade, Chevrolet Camaro, Corvette, Silverado, Tahoe, Suburban, and GMC Sierra and Yukon models.

The Granatelli LT Series billet thermostat housing (MPN 530180) is a precision-engineered cooling solution designed to replace the failure-prone factory plastic housings. CNC-machined from high-quality billet aluminum, this housing provides superior durability and a leak-free seal under high-temperature or high-stress conditions. It comes equipped with a 180-degree thermostat to help lower operating temperatures, making it an essential upgrade for high-performance LT1, LT4, and LT5 engines or heavy-duty towing applications.

• Precision CNC-machined from billet aluminum for maximum durability and heat resistance
• Includes a 180-degree thermostat for improved thermal management over stock settings
• Direct bolt-on replacement for the original equipment (OE) plastic housing
• Maintains a secure, leak-free seal to protect your cooling system
• Manufacturer Part Number: 530180

Fits select 2014-2020 Chevrolet, Cadillac, and GMC models including Corvette, Camaro, Escalade, and Silverado (LT1 / LT2 / LT4 / LT5).

Manage engine temperatures more effectively with the Granatelli 530160 Billet Thermostat Housing. This assembly replaces the factory unit with a precision CNC-machined billet aluminum housing, offering superior durability and a professional finish for your engine bay. The kit includes a 160-degree low-temperature thermostat, designed to open earlier than the standard OE unit. This allows for increased coolant flow at lower temperatures, which is particularly beneficial for high-performance LT-series engines (LT1, LT2, LT4, and LT5) in demanding conditions or warmer climates.

• Direct Replacement: Bolts directly to factory mounting points on LT-series engines.
• Cooling Efficiency: 160-degree thermostat promotes lower operating temperatures.
• Billet Construction: CNC-machined aluminum housing provides a significant upgrade over cast or plastic OE parts.
• Engine Compatibility: Engineered for GM LT1, LT2, LT4, and LT5 applications.
• Part Number: 530160

Fits 2014-2019 Chevrolet Corvette C7 Stingray, Grand Sport, Z06, and ZR1 models.

Granatelli Motor Sports rear adjustable toe links (MPN 500059) are engineered to provide the precise alignment control required for high-performance driving and track-oriented setups. These heavy-duty links replace the factory non-adjustable or limited-adjustment units, allowing for fine-tuned toe settings that are critical for maintaining rear-end stability and optimizing the tire contact patch.

On lowered C7 Corvettes, factory adjustment ranges are often insufficient to return the rear suspension to proper specifications. These adjustable toe links solve that problem, helping to prevent uneven tire wear and unpredictable handling during hard cornering. Built for durability, they feature high-strength materials designed to withstand the rigors of aggressive street and competitive use.

• Direct replacement for OE rear toe links
• Enables precise rear toe adjustment for improved handling and tire life
• Essential for lowered vehicles and custom track alignments
• High-strength construction to minimize deflection under load
• Manufacturer Part Number: 500059

Fits select 2018-2021 Dodge Durango SRT Hellcat and Jeep Grand Cherokee Trackhawk.

Replace your factory cast thermostat housing with this precision-engineered Granatelli Billet Thermostat Housing. Machined from high-grade billet aluminum, this housing offers superior durability and a more secure seal compared to OEM components, making it an ideal upgrade for high-performance Hellcat and Trackhawk cooling systems. The sleek black powdercoated finish provides long-lasting corrosion resistance and a clean, custom look under the hood.

• Direct-fit replacement for the original thermostat housing
• CNC-machined from billet aluminum for maximum strength
• Durable black powdercoat finish
• Designed for high-performance supercharged applications
• Manufacturer Part Number: 431000B

Fits select 2018-2021 Jeep Grand Cherokee Trackhawk and 2021 Dodge Durango SRT Hellcat.

The Granatelli Billet Thermostat Housing (MPN: 431000) is a precision-engineered cooling system upgrade designed to replace the factory unit on high-performance supercharged HEMI applications. CNC-machined from solid billet aluminum, this housing offers superior durability and heat resistance compared to standard cast or plastic components, ensuring reliable operation under the extreme thermal loads found in Trackhawk and Hellcat engines.

• CNC-machined from high-grade billet aluminum for maximum strength
• Direct bolt-on replacement for the OE thermostat housing
• Optimized for the 6.2L Supercharged HEMI cooling system requirements
• Maintains precise tolerances for a leak-free seal
• Manufacturer Part Number: 431000

Fits select 2003-2021 Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L, 6.1L, 6.2L Hellcat, and 6.4L Hemi engines.

Improve your engine's cooling efficiency and protect your performance with the Granatelli 160-degree thermostat. By opening at a lower temperature than the factory unit, this thermostat allows coolant to circulate through the radiator earlier in the thermal cycle. This helps maintain more consistent operating temperatures and reduces the risk of power-robbing heat soak during high-performance driving, heavy towing, or in hot climates.

• Opening Temperature: 160 Degrees Fahrenheit
• Direct-fit replacement for the original equipment (OE) thermostat
• Helps optimize engine performance by maintaining lower coolant temperatures
• Engineered for 5.7L, 6.1L, 6.2L Hellcat, and 6.4L displacements
• Ensures proper fitment and sealing within the factory housing
• Manufacturer Part Number: 43060T

Fits 2018-2019 Jeep Grand Cherokee Trackhawk models. Upgrade your Hemi's cooling efficiency with the Granatelli Billet Thermostat Housing and 180-degree thermostat kit.

This kit is engineered to replace the restrictive factory housing with a precision-machined billet aluminum component, providing a more robust seal and improved engine bay aesthetics. The included 180-degree thermostat allows the engine to reach operating temperature faster while maintaining a lower overall thermal baseline compared to the stock unit. This is a critical upgrade for high-output supercharged applications where heat soak can lead to timing retard and reduced power.

• CNC-machined billet aluminum housing for superior durability
• Integrated 180-degree thermostat for optimized cooling cycles
• Stealthy black anodized finish for corrosion resistance
• Direct bolt-on installation using factory mounting points
• Manufacturer Part Number: 430180B

Fits select 2018-2024 Dodge Durango SRT Hellcat, Jeep Grand Cherokee Trackhawk, and Ram 1500 models including TRX.

The Granatelli Billet Thermostat Housing (MPN 430180) is a precision-engineered cooling system upgrade designed to replace the standard factory housing. CNC-machined from high-quality billet aluminum, this housing offers superior strength and a cleaner aesthetic under the hood compared to OEM cast components. The kit includes a 180-degree thermostat, which opens earlier than the stock unit to help maintain lower engine operating temperatures. This reduction in temperature is critical for high-output HEMI engines to mitigate heat soak and preserve performance during heavy load or high-ambient conditions.

• CNC-machined billet aluminum construction for increased durability
• 180-degree thermostat included for improved thermal management
• Direct bolt-on replacement for factory housing
• Helps reduce heat soak in high-performance applications
• Manufacturer Part Number: 430180

Fits 2018-2019 Jeep Grand Cherokee Trackhawk.

Optimize your engine's thermal management with the Granatelli Billet Thermostat Housing kit. This upgrade replaces the factory cast unit with a precision CNC-machined billet aluminum housing designed for superior durability and a leak-free seal. Finished in black, it provides a clean, stealthy appearance in the engine bay of your high-performance HEMI.

The included 160-degree thermostat is designed to open earlier than the stock unit, allowing coolant to circulate sooner. This helps maintain lower operating temperatures and reduces the risk of heat soak, which is essential for maintaining consistent power during spirited driving or under high boost levels.

• CNC-machined billet aluminum construction for maximum strength
• Includes 160-degree low-temperature thermostat
• Improves cooling efficiency by lowering the activation threshold
• Direct bolt-on replacement for the OEM housing
• Corrosion-resistant black finish
• Manufacturer Part Number: 430160B

Fits select 2018-2024 Dodge Durango SRT Hellcat, Jeep Grand Cherokee Trackhawk, and Ram 1500 models.

This Granatelli Billet Thermostat Housing (MPN 430160) is a high-performance cooling upgrade designed to replace the factory unit. Machined from high-grade billet aluminum, it provides superior durability and a cleaner appearance compared to standard cast components. The included 160-degree thermostat opens earlier than the OEM unit, allowing coolant to circulate through the radiator sooner to maintain lower operating temperatures—a critical factor for high-output Hemi engines found in the Hellcat, Trackhawk, and TRX.

• Precision CNC-machined billet aluminum construction
• Includes 160-degree high-performance thermostat
• Direct bolt-on replacement for factory housing
• Engineered for optimized coolant flow and enhanced engine thermal management
• Compatible with factory mounting points and hose connections
• Manufacturer Part Number: 430160

The Granatelli 313530D 3.0in Oval Electronic Exhaust Cutout System allows you to switch between a muffled factory exhaust note and an aggressive open-header sound via an in-cabin switch. This dual-pipe system is designed for high-performance vehicles where ground clearance and exhaust volume control are priorities.

Each unit is manufactured from corrosion-resistant stainless steel. Unlike standard round cutouts, the low-profile oval design provides extra clearance, making it suitable for lowered cars and tight chassis spaces. The internal butterfly valves are driven by high-torque electronic motors for consistent operation under intense heat and vibration.

• Diameter: 3.0" (76mm)
• Profile: Low-profile oval for enhanced ground clearance
• Construction: Durable stainless steel
• Operation: Electronic remote/switch controlled
• Configuration: Dual exhaust system (Set of 2)
• Manufacturer Part Number: 313530D

The Granatelli 4.0in (102mm) Electronic Exhaust Cutout System (MPN: 307540) provides the ability to toggle between a standard muffled exhaust and an open, free-flowing bypass at the push of a button. This system is engineered for high-performance applications where managing backpressure and exhaust volume on the fly is essential.

• Precision Construction: Manufactured from high-grade stainless steel for superior corrosion resistance and long-term durability in high-heat environments.
• Electronic Operation: Features a high-torque DC gear motor to ensure the valve opens and closes reliably, even under pressure.
• Universal Fitment: Designed for custom integration into 4.0-inch (102mm) diameter exhaust piping.
• Specifications: Bore diameter: 4.0in (102mm); Material: Stainless steel; Manufacturer Part Number: 307540.

The Granatelli 3.0in (76mm) Electronic Dual Exhaust Cutout system provides a direct bypass of your vehicle's mufflers to increase exhaust flow and volume on demand. This dual-pipe kit is designed to be integrated into existing exhaust systems, giving the driver the ability to electronically toggle between a quiet factory-style path and an open-header configuration via a motor-driven butterfly valve.

• 3.0-inch (76mm) diameter for high-flow compatibility
• High-grade stainless steel construction for heat and corrosion resistance
• Dual system kit specifically for twin-exhaust vehicles
• Reliable electronic actuators for precise, remote-controlled operation
• Manufacturer Part Number: 307530K

Take control of your vehicle's exhaust note and flow with the Granatelli 3.0in Dual Electronic Exhaust Cutout. These electronic valves allow you to bypass your mufflers for a wide-open racing sound and maximum flow at the touch of a button, while retaining the ability to switch back to a quiet street profile in seconds.

Built to withstand the high-heat environment of a performance exhaust system, this dual set features 3.0-inch diameter bores and high-torque internal motors for reliable butterfly valve operation. This specific package (MPN 307530D) is the "Cutout Only" version, designed for custom installations or as a direct replacement for existing systems where wiring and controllers are already in place.

• Dual 3.0-inch (76mm) diameter for high-flow exhaust applications
• Precision-machined electronic butterfly valves
• High-torque motors for consistent opening and closing
• Durable construction to handle extreme exhaust temperatures
• Ideal for custom dual-exhaust configurations
• Manufacturer Part Number: 307530D

Redirect exhaust gases safely away from the chassis with this Granatelli Motor Sports 3.0-inch exhaust turn down. Fabricated from 304 stainless steel, this component provides excellent corrosion resistance and heat tolerance for long-term durability in high-performance applications. The integrated 3-bolt flange allows for a secure, bolt-on connection to headers or existing exhaust piping.

• Material: High-grade 304 Stainless Steel
• Diameter: 3.0 Inches (76.2mm)
• Mounting Interface: 3-Bolt Flange
• Finish: Natural stainless
• Included Hardware: Flange gasket
• Manufacturer Part Number: 307530-S

This turn down is an essential component for race applications or custom builds where dumping exhaust directly after the header or collector is required to manage under-car temperatures and clearance.

The Granatelli 307530-3 V-Band to Straight Connection Adapter is engineered to simplify exhaust fabrication by converting a standard 3-bolt collector to a 3.0-inch (76mm) V-band flange system. This component provides a robust, leak-free transition that allows for quicker disassembly and superior sealing compared to traditional bolted flanges.

• Diameter: 3.0" (76mm)
• Conversion Type: Adapts 3-bolt collector flange to V-band straight connection
• Construction: High-strength materials for durability in high-heat exhaust environments
• Included Hardware: V-band clamp, gaskets, and abutment for a complete installation
• Manufacturer Part Number: 307530-3

By utilizing this adapter, installers can achieve a more reliable exhaust joint that resists the warping often associated with traditional triangular flanges. The included gaskets ensure a precise seal at the 3-bolt interface, while the V-band assembly provides the high-clamping force necessary for forced induction or high-performance naturally aspirated applications.

The Granatelli 3.0in (76mm) Electronic Exhaust Cutout System (MPN 307530) provides immediate control over your vehicle's exhaust flow and sound profile. This system allows you to bypass the restrictive factory muffler at the touch of a button, transitioning from a street-legal quiet tone to an aggressive, open-header roar for the track or off-road use.

Constructed from high-grade stainless steel to ensure long-term durability and corrosion resistance, this cutout is designed to withstand the high-heat environment of performance exhaust systems. The integrated high-torque electronic motor provides a reliable, airtight seal when closed and rapid actuation when opened.

• Bore Diameter: 3.0 inches (76 mm)
• Material: High-grade stainless steel construction
• System Type: Electronic motor-driven valve
• Inlet/Outlet Style: Bolt-on flange
• Manufacturer Part Number: 307530

Take full control over your vehicle's sound and backpressure with the Granatelli 2.5-inch (63mm) Electronic Dual Exhaust Cutout System. This kit is designed for dual-exhaust applications, allowing you to bypass your mufflers at the flip of a switch for a wide-open, aggressive exhaust note and increased flow on the track.

Built for durability in high-heat environments, the system features stainless steel construction to resist corrosion and ensure longevity. The integrated electronic motors provide reliable, rapid valve operation, letting you transition between factory-quiet and maximum-volume performance in seconds.

• Pipe Diameter: 2.5 inches (63mm)
• Configuration: Dual system for twin-pipe exhaust layouts
• Material: Corrosion-resistant stainless steel
• Operation: Electronic motor-driven valves
• Manufacturer Part Number: 307525K

Upgrade your custom dual exhaust with the Granatelli 2.5-inch Electronic Exhaust Cutout set. These stainless steel valves allow you to bypass your mufflers at the touch of a button, enabling an immediate transition from street-legal sound to unrestricted open-exhaust flow for the track. Engineered for durability and high-heat resistance, these cutouts provide a precision-fit solution for custom performance applications.

• Bore Diameter: 2.5 inches
• Material: High-grade stainless steel
• Installation Type: Weld-in
• Configuration: Set of 2 (Dual Cutouts)
• System Type: Electronic valve assembly only
• Manufacturer Part Number: 307525D

This kit includes two electronic cutout valves designed to be welded into your existing exhaust piping. They offer a reliable way to increase horsepower and sound by reducing backpressure when you need it most.

Redirect exhaust flow and protect your vehicle's underbody with the Granatelli 2.5-inch 304 stainless steel turn down. This component is designed to bolt directly to a matching 3-bolt flange, making it an ideal solution for track setups, dump tubes, or custom exhaust configurations where diverting heat and gases away from the chassis is critical.

• Durable Construction: Fabricated from high-grade 304 stainless steel for maximum corrosion resistance and longevity in high-heat environments.
• Specifications: Features 2.5-inch diameter tubing with a precise turn-down angle to direct exhaust toward the ground.
• Secure Mounting: Integrated 3-bolt flange ensures a stable connection and simplified installation.
• Complete Kit: Includes the turn down pipe and a matching gasket for a leak-free seal at the flange interface.
• Manufacturer Part Number: 307525-S

Take control of your vehicle's sound and performance with the Granatelli 3.0in (76mm) Dual Electronic Exhaust Cutout System. This kit allows you to toggle between the factory exhaust path and a high-flow open bypass at the touch of a button, letting you switch from street-legal volume to an aggressive race tone while reducing backpressure.

Built for durability and ease of installation, this system is constructed from aluminized mild steel for reliable heat and corrosion resistance. The slip-fit design simplifies the setup process, utilizing the included heavy-duty band clamps to provide a secure, leak-free connection to your existing 3.0-inch exhaust piping.

• Bore Diameter: 3.0" (76 mm)
• System Type: Dual exhaust setup
• Material: High-quality aluminized mild steel
• Connection: Slip-fit design for easier alignment
• Hardware Included: Performance band clamps for secure mounting
• Part Number: 303530D

The Granatelli Electronic Exhaust Cutout (MPN 303530) gives you on-demand control over your vehicle's exhaust note and backpressure. This 3.0-inch (76mm) system allows you to bypass the muffler at the touch of a button, transitioning from a street-legal sound to an aggressive, open-header roar for the track or off-road use.

Built from aluminized mild steel for reliable thermal performance and durability, this cutout is designed for straightforward installation. The slip-fit design paired with included heavy-duty band clamps ensures a secure, leak-free connection to your existing exhaust piping, making it a versatile option for custom builds where welding might not be desired.

• System Diameter: 3.0 inches (76mm)
• Material: Aluminized Mild Steel
• Installation: Slip-fit design with included band clamps
• Valve Operation: High-torque electronic motor
• Manufacturer Part Number: 303530

Gain total control over your vehicle's exhaust note and backpressure with the Granatelli 2.5-inch (63mm) Electronic Dual Exhaust Cutout system. This kit allows you to toggle between a restrictive factory-quiet exhaust and a wide-open, free-flowing performance profile at the touch of a button, providing an aggressive sound and improved flow when you need it most.

Built for durability and ease of installation, this system is constructed from aluminized mild steel to provide reliable corrosion resistance. The slip-fit design and included band clamps eliminate the need for extensive welding, allowing for a cleaner and more straightforward installation on standard 2.5-inch exhaust tubing.

• System Type: Dual Electronic Exhaust Cutout
• Diameter: 2.5" (63mm)
• Material: Aluminized Mild Steel
• Mounting Style: Slip Fit with heavy-duty band clamps
• Operation: Electronic motor-driven butterfly valves
• Manufacturer Part Number: 303525D

Take control of your vehicle’s exhaust note and backpressure with the Granatelli Electronic Exhaust Cutout System. This 2.5-inch (63mm) system allows you to toggle between a restrictive factory exhaust path and an unrestricted, straight-through flow for maximum performance and sound at the track.

Built from durable aluminized mild steel, this kit is engineered for longevity and reliable valve operation. The slip-fit design and included heavy-duty band clamps facilitate a secure installation, allowing for precise positioning before final fitment. This electronic system eliminates the need for manual wing nuts or physical block-off plates.

• System Diameter: 2.5 in (63mm)
• Material: Aluminized Mild Steel
• Installation: Slip fit connection with included band clamps
• Operation: Electronic internal butterfly valve
• Part Number: 303525

The Granatelli 303522D Dual Electronic Exhaust Cutout system allows you to instantly toggle between restricted factory exhaust levels and wide-open performance flow. Designed for dual exhaust configurations with 2.25-inch (57mm) piping, this kit provides an immediate bypass of your mufflers to reduce backpressure and enhance the exhaust note at the push of a button.

Built for durability and ease of installation, the system features aluminized mild steel construction. The slip-fit design combined with the included heavy-duty band clamps allows for a secure, professional installation with minimal exhaust modification. This is an essential upgrade for enthusiasts who want the flexibility of a quiet daily driver and a high-performance track machine in one package.

• Diameter: 2.25" (57mm)
• Configuration: Dual exhaust system
• Material: Aluminized mild steel
• Mounting Style: Slip fit with included band clamps
• Operation: Electronic butterfly valve bypass
• Manufacturer Part Number: 303522D

The Granatelli Motorsports 2.25" (57mm) Electronic Exhaust Cutout (MPN 303522) provides an immediate solution for drivers seeking to toggle between factory-quiet exhaust levels and a wide-open, high-flow profile. This system is designed for a precise fit on 2.25-inch exhaust tubing, utilizing a slip-fit design that simplifies installation and provides a reliable seal.

Constructed from durable aluminized mild steel, this cutout is engineered to withstand the thermal stress and environmental conditions typical of under-chassis components. The included heavy-duty band clamps ensure a secure, leak-free attachment to your existing exhaust piping, while the high-torque electronic butterfly valve allows for rapid actuation and precise control over your vehicle's sound and backpressure.

• Bore Diameter: 2.25" (57mm)
• Material: Aluminized Mild Steel
• Installation: Slip-fit connection with included band clamps
• Operation: Electronic butterfly valve for instantaneous sound and flow adjustment
• Manufacturer Part Number: 303522

Upgrade your vehicle's exhaust control with the Granatelli Motorsports 1-Touch Smart Switch Remote (MPN 303510R-D). Engineered specifically for dual exhaust cutout configurations, this system replaces traditional momentary switches that require the user to hold the button during the entire opening or closing cycle. The smart circuitry allows for true one-touch operation, automatically cycling both cutout valves to the fully open or fully closed position with a single press.

• One-touch operation for immediate valve cycling without holding the button
• Designed for simultaneous control of dual exhaust cutout systems
• Compact wireless remote for convenient interior or exterior operation
• Simplifies wiring and cockpit controls for high-performance exhaust setups
• Manufacturer Part Number: 303510R-D