Fits Nissan S13 and S14 chassis equipped with the SR20DET engine.

Restore reliable ignition to your SR20DET with the ISR Performance OE Replacement Starter. Over time, factory starters can develop dead spots or solenoid failure, leading to the common clicking sound or a complete failure to crank. This unit is designed as a direct bolt-on replacement for the original equipment, ensuring your engine fires up consistently every time.

Built to meet or exceed original equipment specifications, this starter provides the necessary torque for quick engine turnover. It utilizes the factory mounting points and wiring connections, making it a straightforward replacement for worn components during a refresh or engine swap.

• Manufacturer Part Number: OE-SR-STARTER
• Direct OE replacement for SR20DET applications
• Engineered for Nissan S13 and S14 chassis fitment
• High-torque motor for reliable starting performance
• Bolts directly to factory mounting locations

Fits 2003-2009 Nissan 350Z (Z33) models equipped with a manual transmission.

The ISR Performance Manual Transmission Crossmember (IS-TMCOE-Z33) provides a direct-fit replacement for the factory transmission support. Crucial for maintaining proper drivetrain alignment, this crossmember is an essential component for chassis restorations, manual transmission swaps, or replacing a damaged or rusted original equipment unit.

Engineered to match the geometry of the Z33 manual gearbox setup, this crossmember bolts directly to factory mounting points. It provides a stable platform for the transmission mount, ensuring that the gearbox is positioned correctly within the tunnel to prevent driveline vibration and premature wear on universal joints.

• Direct replacement for the factory manual transmission crossmember
• Specifically designed for the 2003-2009 Nissan 350Z (Z33) chassis
• Precision-stamped steel construction for structural integrity
• Maintains critical drivetrain and shifter alignment
• Manufacturer Part Number: IS-TMCOE-Z33

Fits 1989-1998 Nissan 240SX (S13 and S14) equipped with SR20 or KA24 manual transmissions.

The ISR Performance manual transmission crossmember is designed as a reliable replacement for bent, rusted, or missing factory hardware. Essential for maintaining proper drivetrain alignment, this crossmember secures the transmission to the chassis, preventing unwanted movement that can lead to shifting issues or vibrations. Whether you are performing a manual swap or restoring an S-chassis to its peak condition, this component ensures a precise fit to the factory mounting points.

• Direct replacement for the OE manual transmission crossmember
• Compatible with both S13 and S14 chassis
• Supports SR20DET and KA24DE manual transmission configurations
• Durable construction to withstand high-stress performance driving
• Manufacturer Part Number: IS-TMCOE-S1314

Fits 1992-1998 BMW E36 models.

The ISR Performance Solid Steering Shaft Assembly is designed to eliminate the vague, disconnected steering feel common in aging BMW E36 chassis. By replacing the factory steering shaft and its flexible rubber coupler with a rigid, solid-link design, this assembly provides direct mechanical feedback from the rack to the steering wheel.

Constructed for the high-stress demands of drifting and track racing, this unit removes the compliance found in the OEM rubber dampener. This ensures every steering input is immediate and precise, giving the driver better control over front-end grip. This is a complete assembly engineered for durability and reliable performance.

• Replaces the flexible factory rubber steering coupler (guibo)
• Eliminates steering slop and improves tactile feedback
• Durable metal construction suitable for performance use
• Complete steering shaft assembly
• Manufacturer Part Number: IS-UJSS-BMW

Fits 2019-2022 Toyota Corolla Hatchback.

The ISR Performance ST Series exhaust system provides an updated exhaust note and improved flow for the E210-generation Toyota Corolla Hatchback. Engineered as a direct-fit upgrade, this system replaces the restrictive factory exhaust components with a more performance-oriented design, offering a deeper, sportier tone while maintaining a refined street presence. It is designed to bolt directly to the vehicle using factory-style mounting points for a secure and straightforward installation.

• Direct replacement for 2019-2022 Toyota Corolla Hatchback factory exhaust
• ST Series street-tuned exhaust note
• Utilizes factory mounting points and hangers for precise fitment
• Manufacturer Part Number: IS-ST-E210

Fits RWD Nissan SR20DET S13 engines. The ISR Performance OE Replacement Water Pump is a critical maintenance component designed to restore cooling system efficiency. As a direct-fit replacement for the factory unit, this pump ensures proper coolant circulation through the engine block and radiator to prevent overheating and maintain optimal operating temperatures.

• Manufacturer Part Number: OE-SR-WP-S13
• Direct OE-style fitment for RWD S13 SR20DET engine configurations
• Replaces worn or failing factory water pumps to prevent engine damage
• Cast housing designed for reliable coolant flow and durability
• Engineered for use with original factory mounting points

Fits Nissan RB20DET engines.

The ISR Performance OE Replacement Water Pump is a precision-engineered cooling solution designed to restore the thermal management of your RB-series engine. As a critical component of the cooling system, this water pump ensures consistent coolant circulation, preventing localized hotspots and protecting your engine from overheating during both daily driving and performance use.

Built to meet or exceed original equipment standards, this pump serves as a direct-fit replacement for a worn, leaking, or noisy factory unit. It features a robust housing and high-quality internal seals to provide a reliable, long-term service life. Proper cooling is vital for the RB20DET, and installing a fresh water pump is a proactive way to maintain engine health and cooling efficiency.

• Direct OE replacement for Nissan RB20DET engines
• Precision-machined housing for exact fitment and sealing
• Ensures consistent coolant flow to maintain optimal operating temperatures
• Includes necessary hardware for standard installation
• Manufacturer Part Number: OE-21010-70TY5

Fits 1995-1998 Nissan 240sx (S14) front hubs.

ISR Performance 70mm extended wheel studs provide the necessary length for safely running wheel spacers or aftermarket wheels with thick center faces. Increasing the stud length ensures full thread engagement with your lug nuts, a vital requirement for both street driving and high-performance track use where wheel security is paramount.

These studs are designed as a direct replacement for factory hardware, featuring the specific 14.25mm knurl diameter required for a secure press-fit into the S14 front hub assembly.

• Extended 70mm length for spacer compatibility
• 14.25mm knurl diameter for precise front hub fitment
• High-strength construction for reliable wheel retention
• Direct replacement for OE front wheel studs
• Manufacturer Part Number: IS-WHS-1425

Maintain optimal engine temperatures and cooling system efficiency with the ISR Performance OE Replacement Water Pump. Engineered specifically for Nissan RB25 and RB26 engines, this pump provides a reliable, direct-fit solution to prevent overheating and ensure consistent coolant circulation throughout the block and head.

This water pump is a critical maintenance item for any RB-series refresh or build. It is designed to meet or exceed factory flow characteristics, utilizing a durable cast housing and precision-engineered impeller. By replacing a worn water pump, you protect your engine from potential bearing failure and catastrophic coolant leaks.

• Direct-fit OE replacement for Nissan RB25 and RB26 engines
• Ensures consistent coolant flow and heat dissipation
• Durable construction for long-term reliability
• Replaces Manufacturer Part Number: OE-21010-24U26

Fits BMW E46 3 Series models. The ISR Performance Series II EP Dual-Rear Section is engineered to provide a high-flow exhaust solution for drivers looking to enhance the sound and appearance of their BMW E46. As a rear-section-only component, it focuses on the final exit of the exhaust system, replacing the factory muffler assembly with a signature dual-exit layout.

This component is designed to work as part of the ISR Series II EP lineup, ensuring precise fitment and a straightforward installation process. The dual-tip design offers a more aggressive rear profile compared to the standard OE setup while reducing backpressure for improved engine response.

• Direct fitment for the BMW E46 chassis
• Series II EP dual-rear section design
• Aggressive dual-exit exhaust tip configuration
• Precision-engineered for optimized flow and sound
• Manufacturer Part Number: IS-S2RO-EPD-E46

Fits 2013-2024 Subaru BRZ, Toyota GT86/GR86, and Scion FR-S.

The ISR Performance ST Series exhaust system is engineered to enhance the acoustic profile and exhaust flow of the ZN6 and ZN8 chassis. By replacing the restrictive factory mufflers with high-quality mandrel-bent piping, this system delivers a deeper, more aggressive exhaust note while maintaining a refined appearance. The polished tips are sized to fill the factory rear bumper cutouts, providing a significant aesthetic upgrade over the stock exit.

• High-flow straight-through resonator design to minimize backpressure
• Dual polished exhaust tips for a classic, mirror-finish look
• Precision mandrel-bent tubing for consistent diameter and optimized gas velocity
• Direct bolt-on installation utilizing factory exhaust hanger locations
• Heavy-duty flanges and hardware for a secure, leak-free seal
• Manufacturer Part Number: IS-ST-GT86-P

Gain precise control over your vehicle's rear alignment with ISR Performance Adjustable Rear Toe Arms (IS-ZRARM-KIT). These adjustable arms are essential for any vehicle with modified suspension heights where factory eccentric bolts lack the necessary range to bring toe settings back into specification. Proper toe alignment is critical for maximizing tire life, improving straight-line stability, and ensuring predictable handling during cornering.

Constructed for durability and precision, these arms replace the factory units to provide a much wider range of adjustment. By replacing soft OEM bushings with high-strength rod ends, these arms also reduce suspension deflection under load, resulting in more direct driver feedback. Whether you are dialing in a track-day setup or correcting geometry on a lowered street car, these toe arms provide the reliability needed for high-performance driving.

• Provides a broad range of toe adjustment for lowered suspension setups
• Heavy-duty construction for increased strength and durability
• Replaces restrictive factory arms and eccentric hardware
• Helps prevent uneven tire wear and improves rear-end stability
• Durable finish for long-term corrosion resistance
• Manufacturer Part Number: IS-ZRARM-KIT

Fits 2013-2020 Subaru BRZ.

Achieve precise suspension tuning and improved handling with ISR Performance Rear Lower Control Arms. These arms are an essential upgrade for lowered vehicles, providing the camber adjustment necessary to optimize the tire contact patch and prevent premature or uneven tire wear. By replacing the non-adjustable factory units, these arms offer the rigidity and adjustability required for both spirited street driving and competitive track use.

• Provides critical rear camber adjustment for lowered vehicles
• Enhances suspension geometry and handling response
• High-strength construction designed for durability under load
• Direct bolt-on replacement for factory rear lower control arms
• Manufacturer Part Number: IS-RLC-FRS

Fits 2013-2020 Subaru BRZ.

ISR Performance rear trailing arms are engineered to provide the rigidity and adjustment necessary for maintaining precise suspension geometry. By replacing the factory rear trailing arms, these components minimize bushing deflection under heavy cornering, braking, and acceleration loads, resulting in more predictable handling and improved chassis feedback.

These arms are a vital upgrade for lowered vehicles, where factory suspension components often reach the limit of their adjustment range. ISR Performance units allow for better control over the rear suspension sweep and wheelbase positioning, ensuring your alignment stays true during spirited street driving or competitive track use.

• Direct replacement for OEM rear trailing arms
• Designed to improve suspension geometry and alignment stability
• High-strength construction for increased durability over factory stamped steel
• Reduces rear-end deflection for more consistent handling
• Manufacturer Part Number: IS-RTR-FRS

Fits 1989-1994 Nissan 240SX (S13).

The ISR Performance Power Steering Kit (IS-S13PS-KIT) is a heavy-duty solution for replacing the aging, prone-to-leak factory high-pressure lines on the S13 chassis. Over decades of heat cycles, the original rubber hoses become brittle and often fail at the crimped connections. This kit replaces those failure points with a high-pressure braided line designed to withstand the demands of both daily driving and track use.

• Replaces the vulnerable factory high-pressure power steering line
• High-pressure braided steel hose construction for maximum durability
• Includes necessary adapter fittings for a secure, leak-free connection
• Direct fitment for the S13 240SX chassis
• Manufacturer Part Number: IS-S13PS-KIT

Fits late-model BMW E46 325 and 330 series vehicles. The ISR Performance Series II Resonated Mid-Section is engineered to bridge the gap between your headers and rear muffler section while refining the acoustic profile of your exhaust system. By replacing the factory mid-pipe with this high-flow resonated unit, you effectively manage exhaust pulses to eliminate the harsh rasp and cabin drone often associated with modified E46 inline-six engines.

• Replaces factory mid-section to improve exhaust scavenging and flow
• Integrated resonator specifically tuned to dampen high-pitched frequencies and drone
• Designed as part of the ISR Performance Series II exhaust line
• Direct fitment for late-model E46 325/330 chassis
• Manufacturer Part Number: IS-S2RMD-E46-L

Fits 1989-1994 Nissan 240SX S13 (Front/Rear) and S14 (Rear).

These ISR Performance 70mm extended wheel studs are an essential upgrade for vehicles utilizing slip-on wheel spacers or aftermarket wheels with thick center hubs. By extending the stud length beyond the factory specifications, these units ensure proper thread engagement and lug nut seating, which is critical for maintaining hub integrity during high-load cornering or track use. These studs are designed with a 12.85mm knurl diameter for a precise press-fit into compatible Nissan hubs.

• Overall Length: 70mm
• Knurl Diameter: 12.85mm
• Application: Replaces factory studs to accommodate spacers or thicker wheel faces
• Fitment: 1989-1994 S13 (All) and S14 (Rear Only)
• Manufacturer Part Number: IS-WHS-1285

Fits 1999-2006 BMW E46 3-Series models.

The ISR Performance Series II MBSE Rear Section is engineered to replace the restrictive factory rear muffler with a high-flow, single-exit design. This modular exhaust component provides a more aggressive tone and improved exhaust scavenging, allowing your engine to breathe more freely while reducing significant weight from the rear of the vehicle. Constructed with precision-welded tubing and designed to follow factory routing, it offers a straightforward upgrade for enthusiasts seeking better sound and performance on the E46 chassis.

• Manufacturer Part Number: IS-S2RO-MBSE-E46
• Product Series: Series II MBSE (Modular Build Single Exit)
• Rear section only; designed for modular compatibility
• High-flow piping reduces backpressure and improves throttle response
• Lightweight construction over OEM muffler assemblies
• Direct-fit installation using factory-style hangers

Fits 1999-2005 Lexus IS300.

The ISR Performance MBSE Single Exhaust is engineered to replace the restrictive factory exhaust system on the first-generation Lexus IS300. This single-exit configuration focuses on optimizing exhaust flow and reducing vehicle weight compared to the bulky OE muffler and piping. Built for durability and precise fitment, it provides a more aggressive exhaust note while maintaining enough refinement for daily driving.

• Specifically designed for the 1999-2005 Lexus IS300 chassis
• Single-exit layout for improved ground clearance and significant weight savings
• Utilizes factory-style mounting points for a secure, bolt-on installation
• Mandrel-bent piping ensures smooth exhaust gas velocity and reduced backpressure
• Manufacturer Part Number: IS-MBSE-IS300-1G

Fits 2014-2024 Infiniti Q50 models.

The ISR Performance ST Series Exhaust is designed to replace the restrictive factory exhaust system with a high-flow, straight-through configuration. Engineered for enthusiasts seeking a more aggressive exhaust note and improved engine efficiency, this system utilizes mandrel-bent tubing to maintain consistent diameter and minimize backpressure. This results in faster exhaust gas scavenging and improved throttle response across the RPM range.

• Direct bolt-on installation using factory mounting points
• High-quality stainless steel construction for corrosion resistance
• Mandrel-bent piping for optimized exhaust flow
• Aggressive sport-tuned exhaust note
• Includes necessary hardware for installation
• Manufacturer Part Number: IS-ST-Q50

Fits 1999-2005 Lexus IS300.

The ISR Performance GT Single Exit Exhaust provides a high-flow, performance-oriented upgrade for the first-generation Lexus IS300. By utilizing a streamlined single-exit design, this GT series system reduces overall weight compared to the factory setup and minimizes backpressure for improved engine response. It is engineered for precise fitment on the JCE10 chassis, offering an aggressive tone and a classic GT aesthetic for street or track use.

• Manufacturer: ISR Performance
• Series: GT
• Configuration: Single Exit
• Chassis Fitment: 1999-2005 Lexus IS300
• Part Number: IS-GT-IS300-1G

Fits 2003-2009 Nissan 350Z.

The ISR Performance Non-Resonated Mid Section is engineered for enthusiasts seeking a more aggressive exhaust note and improved flow for the VQ35 engine. By eliminating the resonator, this mid-pipe reduces backpressure and provides a rawer, more pronounced sound profile compared to baffled or resonated alternatives.

This mid-section is constructed from high-quality stainless steel to ensure longevity and resistance to the elements. It is designed as a direct bolt-on component, utilizing factory-style flanges to interface seamlessly between your Y-pipe and rear muffler section. It is an essential upgrade for those building a high-flow exhaust system for track or performance street use.

• Non-resonated design for maximum exhaust flow and aggressive sound
• Precision-welded stainless steel construction
• Direct bolt-on fitment to OEM-style exhaust flanges
• Manufacturer Part Number: IS-S2NRMD-350Z

Fits 2014-2024 Infiniti Q50 models equipped with VQ37 3.7L or VR30 3.0L engines.

The ISR Performance Single GT Exhaust (MPN: IS-GT-Q50) offers a lightweight, high-flow alternative to the heavy factory dual-muffler system. By utilizing a single-exit layout, this system reduces unsprung weight behind the rear axle while optimizing exhaust gas velocity for both naturally aspirated and twin-turbocharged V6 platforms. The straight-through canister design provides an aggressive, deep exhaust note without the restriction of the OE resonators.

• Mandrel-bent stainless steel piping for maximized exhaust flow
• Precision TIG-welded construction ensures long-term durability and structural integrity
• Significant weight savings compared to the stock dual-exit exhaust assembly
• Direct bolt-on fitment utilizing factory hanger locations
• Signature Single GT series polished muffler and oversized tip
• Manufacturer Part Number: IS-GT-Q50

Correct your vehicle's rear alignment with ISR Performance Rear Toe Control Rods, designed specifically for the 2013-2020 Subaru BRZ and Scion FR-S. These adjustable arms are essential for drivers who have lowered their vehicles, as factory adjustment often lacks the range needed to bring toe settings back within specification. Proper toe alignment is critical for maximizing tire life, improving straight-line stability, and ensuring predictable handling during aggressive cornering.

Built as a direct replacement for the factory rear toe arms, these rods allow for precise fine-tuning of the rear suspension geometry. Whether you are setting up a car for the track, drifting, or maintaining a lowered daily driver, these control rods provide the adjustability required to optimize your contact patch and suspension response.

• Fits 2013-2020 Subaru BRZ and Scion FR-S
• Enables precise rear toe adjustment beyond OEM limits
• Essential for lowered vehicles to prevent premature tire wear
• Direct bolt-on replacement for factory units
• Manufacturer Part Number: IS-RTC-FRS

The ISR Performance Oil Dipstick 001 is a purpose-built solution engineered specifically for use with the ISR Performance 240LS oil pan. In LS-swap applications where the Nissan 240SX chassis requires a specialized oil pan, a standard dipstick often fails to provide accurate readings or proper clearance. This dipstick, part number IS-ODT-001, resolves those issues by matching the specific depth and volume requirements of the 240LS pan.

• Designed exclusively for the ISR Performance 240LS oil pan
• Ensures precise engine oil level monitoring for LS-series engine swaps
• Maintains a secure seal at the dipstick tube to prevent oil leaks and pressure loss
• Manufacturer Part Number: IS-ODT-001

Fits 2003-2004 Infiniti G35 RWD Sedan models.

The ISR Performance EP Dual Tip Exhaust provides a direct-fit solution for the early V35 chassis, designed to replace the restrictive factory exhaust components with a more efficient, performance-oriented design. Engineered specifically for the RWD Sedan configuration, this system enhances the VQ35DE exhaust note while offering the signature dual-tip aesthetic of the ISR EP series.

• Specifically engineered for 2003-2004 Infiniti G35 RWD Sedan fitment
• Dual-tip exit for a distinct, aggressive appearance and sound profile
• Bolts directly to factory exhaust mounting points for a straightforward installation
• Manufacturer Part Number: IS-EPDUAL-G35S03

This exhaust system is built to withstand the rigors of street and spirited driving, ensuring consistent performance and a precise fit. By optimizing exhaust flow, the EP series allows your G35 to breathe better compared to the stock restrictive piping.

Fits Nissan Skyline R34 25GTT 2-door models.

The ISR Performance GT Single Exhaust is engineered to provide a high-flow exhaust path for the R34 chassis. Specifically designed for 2-door models, this system replaces restrictive factory plumbing with a performance-oriented single-exit layout. It delivers an aggressive exhaust tone and improved flow characteristics for the 25GTT platform, ensuring the exhaust gases exit the vehicle with minimal restriction.

• Manufacturer Part Number: IS-GT-R34GT
• Chassis Fitment: Nissan Skyline R34 25GTT (2-Door Only)
• Exhaust Style: GT Series Single Exit
• Designed for direct fitment to factory-style mounting points

Fits 1998-2005 Lexus GS300.

The ISR Performance MBSE Dual Exhaust system provides a performance-oriented exhaust solution for the second-generation Lexus GS300. This system replaces the restrictive factory exhaust components with a high-flow dual-exit layout, specifically tuned to enhance the vehicle's acoustic profile and visual presence. Each system is designed to utilize factory mounting points for a secure, bolt-on installation that requires no custom fabrication.

• Dual-exit configuration from the ISR MBSE series
• Distinctive blue-burnt finish on the exhaust tips for a custom look
• Direct bolt-on fitment for 1998-2005 Lexus GS300 chassis
• Manufacturer Part Number: IS-MBSE-GS3002G

Fits 2007-2015 Infiniti G37 Sedan models.

The ISR Performance MBSE Dual Catback Exhaust provides a significant upgrade over the restrictive factory system, engineered to optimize exhaust gas flow and enhance the signature VQ engine note. This dual-exit system is designed specifically for the G37 Sedan chassis, balancing a deep, aggressive tone with the performance benefits of a high-flow exhaust layout.

Constructed with precision-welded piping and high-quality resonators, the MBSE series focuses on delivering a refined yet powerful sound profile. The bolt-on architecture utilizes factory mounting points for a secure fitment, making it a straightforward replacement for the OEM exhaust components.

• Dual-exit configuration for maximum exhaust scavenging and flow
• Specifically tuned resonators to manage drone and exhaust frequency
• Precision fitment for the 2007-2015 Infiniti G37 Sedan platform
• Includes all necessary installation hardware and gaskets
• Manufacturer Part Number: IS-MBSE-G37SDN

Fits select 2008-2020 Nissan 370Z and Infiniti G37 models.

Achieving a proper alignment on a lowered Z34 or V36 chassis is often impossible with factory hardware. These ISR Performance Front Upper Camber Arms (IS-FUCA-Z34) replace the non-adjustable factory units, providing the range of motion necessary to correct excessive negative camber. Whether you are looking to save your tires on a daily driver or optimize the contact patch for track performance, these arms offer the precision and strength required for high-performance suspension tuning.

• Corrects front camber geometry on lowered vehicles to prevent uneven tire wear
• Constructed from heavy-duty materials for improved rigidity and steering response
• Features adjustable rod ends for fine-tuned alignment settings
• Direct bolt-on installation using factory mounting points
• Manufacturer Part Number: IS-FUCA-Z34