Fits 1998-2005 Lexus GS300 (2nd Gen).

The ISR Performance GT Dual Exhaust is engineered to optimize exhaust flow and provide a more aggressive acoustic profile for the 2nd generation Lexus GS chassis. This system replaces the restrictive factory exhaust with a high-flow dual-exit configuration, designed specifically to mount to the 1998-2005 GS300 chassis for a precise fit and improved throttle response.

• Series: GT Dual
• Configuration: Dual-exit exhaust system
• Application: 1998-2005 Lexus GS300
• Installation: Replaces factory mid-pipe and mufflers
• Manufacturer Part Number: IS-GT2-GS3002G

Fits 1992-1999 BMW 3 Series (E36) chassis. These ISR Performance engine mounts are engineered to provide a secure and precise foundation for installing a GM LS-series V8 engine into the BMW E36 engine bay.

Constructed for durability and proper alignment, these mounts streamline the engine swap process by ensuring the block is positioned correctly for clearance and drivetrain geometry. They are a critical component for builders looking to replace the factory BMW powerplant with the reliability and performance of an LS V8.

• Engineered specifically for the BMW E36 chassis swap application
• Facilitates the installation of GM LS-series V8 engines
• Simplifies engine positioning and mounting alignment
• Direct replacement for factory mounting points in swap configurations
• Manufacturer Part Number: IS-E36-LSM

Fits 1989-1998 Nissan 240sx S13 and S14.

The ISR Performance LS Swap Mount Kit (IS-240-LSMKT) provides the structural foundation required to drop a GM LS-series V8 engine and compatible transmission into the Nissan S-chassis. These mounts are engineered to position the engine for optimal weight distribution while maintaining clearance for critical steering and driveline components. By utilizing precision-cut materials and robust hardware, this kit ensures the engine and transmission remain securely aligned under the high-torque loads typical of a V8 conversion.

• Complete kit includes both engine and transmission mounts
• Engineered specifically for the S13 and S14 240sx chassis (1989-1998)
• Designed for proper driveline geometry and hood clearance
• Replaces or adapts factory mounting points for LS-based swaps
• Manufacturer Part Number: IS-240-LSMKT

Fits 1989-1994 Nissan 240SX.

The ISR Performance 5 Lug Front Conversion Hub (IS-5LG-S13F) provides a direct solution for S13 owners looking to upgrade from the factory 4-lug configuration to the industry-standard 5x114.3 bolt pattern. This conversion is essential for enthusiasts wanting to install a wider variety of aftermarket wheels or larger brake systems, such as Z32 or S14 components.

Engineered for a precise fit on factory S13 front spindles, this hub replaces the worn original unit without the need for custom machining. It comes with wheel studs pre-installed to simplify the installation process. Whether you are replacing a single damaged hub or completing a full conversion, this component ensures proper wheel centering and reliable performance on the street or track.

• Converts front spindle from 4-lug to 5x114.3 bolt pattern
• Direct fitment for 1989-1994 Nissan 240SX chassis
• Compatible with factory S13 front spindles
• Includes pre-installed wheel studs
• Sold individually (Single Hub)
• Manufacturer Part Number: IS-5LG-S13F

Fits 2008-2020 Nissan 370Z and Infiniti G37 (Z34 chassis).

The ISR Performance Billet Engine Mount Set replaces soft, compliant factory rubber mounts with rigid CNC-machined aluminum housings and high-durometer polyurethane bushings. These mounts are engineered to significantly reduce engine movement under heavy acceleration, braking, and cornering, which improves throttle response and provides a more precise shifter feel by keeping the drivetrain properly aligned.

The IS-EMK-Z34-P set is an essential upgrade for high-horsepower forced induction builds or dedicated track cars where maintaining drivetrain stability is critical. By minimizing engine pitch and torque-induced twist, more energy is transferred directly to the wheels rather than being absorbed by soft or worn-out OEM bushings.

• CNC-machined billet aluminum construction for maximum strength and durability
• High-durometer polyurethane bushings minimize deflection and drivetrain slop
• Direct bolt-on replacement for factory engine mounts
• Designed for Z34 chassis stability in high-performance applications
• Manufacturer Part Number: IS-EMK-Z34-P

Fits 2003-2004 Infiniti G35 Sedan.

The ISR Performance GT Single Exhaust is engineered to optimize exhaust scavenging and reduce backpressure for the early G35 Sedan. By utilizing a high-flow single-exit configuration, this system provides a significant weight reduction over the factory dual-path setup while delivering a deep, aggressive exhaust note that the GT series is known for.

This exhaust system is a direct bolt-on upgrade, designed to utilize factory mounting points for a clean and secure installation. The mandrel-bent piping ensures smooth exhaust gas velocity, making it an ideal choice for enthusiasts looking to improve both the performance and the sound profile of their VQ35DE-powered sedan.

• Single-exit design maximizes weight savings and exhaust flow
• Precision mandrel-bent piping for reduced turbulence
• Polished finish for superior corrosion resistance and aesthetics
• Direct bolt-on installation using factory hangers
• Manufacturer Part Number: IS-GT-G35S03

Fits 2019-2022 Toyota Corolla Hatchback models.

The ISR Performance Circuit Spec Exhaust System is engineered for enthusiasts seeking maximum exhaust flow and a raw, race-inspired tone for the E210 chassis. By replacing the restrictive factory piping with a high-flow design, this system reduces backpressure, allowing the engine to breathe more efficiently and providing a significant increase in volume over the stock configuration.

Designed for a precise fit, the Circuit Spec series focuses on a lightweight, simplified layout that prioritizes performance and sound. The system utilizes factory mounting points for a direct bolt-on installation, ensuring a secure fit without the need for custom fabrication or permanent vehicle modification.

• Product Series: Circuit Spec
• Application: 2019-2022 Toyota Corolla Hatchback
• Installation: Direct bolt-on using factory hangers
• Sound Profile: Aggressive, high-output race tone
• Manufacturer Part Number: IS-CS-E210

Fits 1998-2005 Lexus GS300.

The ISR Performance Single GT Exhaust provides a high-flow, single-exit solution for the second-generation Lexus GS chassis. Designed to replace the heavier factory dual exhaust, this system uses a straight-through design to reduce backpressure and optimize exhaust gas velocity, delivering the signature aggressive tone associated with the GT series.

• Single-exit configuration for weight reduction and improved exhaust scavenging
• Straight-through muffler and resonator design for maximum flow
• Polished finish for enhanced corrosion resistance and aesthetics
• Precision-engineered for 1998-2005 Lexus GS300 fitment
• Includes all necessary gaskets and hardware for a complete bolt-on installation
• Manufacturer Part Number: IS-GT-GS3002G

Fits 1989-1994 Nissan 240SX S13 (KA24DE, KA24E, and SR20DET) without ABS.

The ISR Performance Steel Driveshaft provides a durable, high-strength solution for 240SX owners looking to replace a worn factory two-piece unit or complete an engine swap. By converting to a one-piece design, this shaft eliminates the failure-prone factory center support bearing and reduces drivetrain slop for more direct power delivery to the rear wheels. This specific unit is sized for Non-ABS chassis, which utilize a shorter differential input than ABS-equipped models.

• Engine Compatibility: Fits KA24DE, KA24E, and SR20DET powerplants
• Chassis Fitment: S13 240SX without Anti-lock Braking System (Non-ABS)
• Material: Heavy-duty steel construction for superior torque handling
• Configuration: One-piece replacement removes the center carrier bearing
• Components: Includes pre-installed universal joints and transmission yoke
• Manufacturer Part Number: IS-DS-KASRS13-S

Fits 1989-1998 Nissan 240SX S13 and S14 with RB25 engine swaps.

Dropping an RB25DET into an S-chassis requires precise positioning to ensure adequate hood clearance and proper driveline alignment. These ISR Performance engine swap mounts are engineered to secure the RB25 engine to the factory Nissan S13 or S14 crossmember. By replacing soft or worn-out factory bushings with these heavy-duty mounts, you eliminate excessive engine torque movement, ensuring your power is efficiently transferred to the drivetrain while maintaining the correct engine height.

• Designed specifically for RB25DET/DE swaps into S13 and S14 chassis
• Ensures proper engine placement and hood clearance
• Heavy-duty construction to handle increased horsepower and torque
• Bolts directly to factory mounting locations
• Manufacturer Part Number: IS-240-RB25MKT

The ISR Performance Oil Cooler Kit is an essential cooling upgrade for Nissan 350Z and Infiniti G35 owners looking to manage engine temperatures during high-performance driving. Designed specifically for the VQ35DE platform, this kit helps prevent oil breakdown and maintains consistent lubrication under the high-stress conditions often found on the track or during spirited street use.

This comprehensive kit provides an efficient thermal management solution by diverting engine oil through an external heat exchanger, significantly reducing the thermal load on your VQ35DE. It is engineered as a direct-fit solution for these chassis to ensure your engine remains protected even when pushed to its limits.

• Engineered specifically for the VQ35DE engine platform
• Reduces oil temperatures to prevent viscosity loss and thermal breakdown
• Application-specific for Nissan 350Z and Infiniti G35
• Complete kit designed for effective heat dissipation
• Manufacturer Part Number: IS-350VQ-OCK10

ISR Performance steel lug nuts provide a durable and secure mounting solution for your wheels, engineered to withstand the high-stress demands of performance driving. Unlike lightweight aluminum alternatives, these high-strength steel nuts are designed to resist stripping and maintain integrity through repeated torque cycles and frequent wheel swaps.

The 50mm extended length provides easier access for deep-hub wheels, while the open-ended design is a necessity for vehicles equipped with extended wheel studs where a standard closed-end nut would bottom out. Finished in a clean silver coating, these nuts offer a professional aesthetic combined with the ruggedness required for track or street use.

• Thread Pitch: M12x1.50
• Length: 50mm
• Material: High-strength steel
• Type: Open-ended for extended stud compatibility
• Color/Finish: Silver
• Manufacturer Part Number: IS-1250-SIL

Fits 1995-1998 Nissan 240sx models.

The ISR Performance Eccentric Lockout Kit (IS-EL-S14) is an essential upgrade for S14 chassis owners who demand consistent alignment settings during aggressive driving. On vehicles used for drifting or track days, the factory eccentric adjustment bolts are prone to slipping within their slots under heavy lateral loads, causing sudden and unwanted changes to rear camber or toe.

This kit replaces the factory eccentric washers with precision-cut square lockout plates, effectively locking the bolt in a fixed position. By utilizing this kit in conjunction with adjustable aftermarket control arms, you transfer the adjustment responsibility to the arm's turnbuckle, ensuring your suspension geometry remains locked in regardless of track conditions.

• Manufacturer Part Number: IS-EL-S14
• Eliminates alignment slippage caused by factory eccentric bolts
• Recommended for use with adjustable rear camber and toe arms
• Precision-engineered lockout plates for a secure fit
• Direct replacement for OEM eccentric hardware on the S14 rear subframe

Fits 2014-2024 Infiniti Q50 and 2017-2022 Infiniti Q60 models.

The ISR Performance Rear Traction Rods (IS-RTR-Q60) are engineered to provide essential adjustability for the rear suspension geometry of the Infiniti V37 and CV37 platforms. When lowering these vehicles, the factory non-adjustable links often result in unstable alignment settings. These rods allow for precise tuning of the rear wheel's fore and aft position, helping to eliminate bump steer and improve overall stability.

• Replaces soft factory bushings with high-strength rod ends for reduced deflection
• Heavy-duty construction designed for track and performance street use
• Fully adjustable design allows for precise rear suspension alignment
• Direct bolt-on replacement for factory rear traction links
• Helps maintain consistent tire contact patch during hard acceleration and cornering
• Manufacturer Part Number: IS-RTR-Q60

Fits 1989-1994 Nissan 240sx (S13).

The ISR Performance Series II EP Single Tip Blast Pipe Exhaust is engineered for enthusiasts seeking a signature drift-style aesthetic combined with an uncompromising, raw exhaust note. This non-resonated system replaces the heavy factory muffler with a lightweight, straight-through design, significantly reducing backpressure and shed weight from the rear of the chassis.

• Series II EP Single Tip configuration for an aggressive, track-ready appearance
• Non-resonated piping maximizes exhaust gas velocity and sound volume
• Direct-fit installation utilizing factory-style hangers and mounting points
• High-flow design ideal for both naturally aspirated and turbocharged S13 builds
• Complete with required gaskets and hardware for a secure seal
• Manufacturer Part Number: IS-S2EPSNR-S13

Fits 1989-1994 Nissan 240SX (S13).

The ISR Performance Series II EP Single Tip Blast Pipe Exhaust delivers the aggressive, track-inspired aesthetic of a blast pipe with a more controlled acoustic profile. By incorporating an integrated resonator, this exhaust system mitigates the harsh rasp and drone often associated with straight-pipe setups, making it a practical choice for street-driven S13s that still want a bold presence.

• Series II EP product line featuring a single tip blast pipe design
• Integrated resonator for improved sound quality and volume management
• Direct fitment for the 1989-1994 Nissan 240SX chassis
• Durable construction designed for enthusiasts and drift applications
• Manufacturer Part Number: IS-S2EPSR-S13

The ISR Performance GT Single Exhaust system is designed specifically for the Hyundai Genesis Coupe 3.8, providing a lightweight, high-flow alternative to the restrictive factory dual-exit setup. By utilizing a single-exit configuration, this system reduces overall vehicle weight while optimizing exhaust gas velocity for the 3.8L V6 engine.

As part of the GT series, this exhaust delivers a deep, aggressive tone and features a canister-style muffler for a motorsport-inspired aesthetic. The system is engineered to bolt directly to factory mounting points, ensuring a precise fit and straightforward installation for enthusiasts seeking improved sound and flow.

• Fits Hyundai Genesis Coupe 3.8 models
• Single-exit design for significant weight savings over stock dual exhausts
• High-flow piping and canister muffler for the signature ISR GT exhaust note
• Direct bolt-on installation using factory hangers
• Manufacturer Part Number: IS-GT-GEN38

Fits Nissan Silvia S14 and S15 models (1995-2002) equipped with T28-style turbochargers.

The ISR Performance Angled T28 Turbo Oil Drain Tube is a precision-engineered solution for managing critical oil return in your Nissan S-Chassis. This tube is specifically designed to provide the correct clearance for S14 and S15 configurations, ensuring that oil gravity-drains effectively from the turbocharger back to the oil pan without restriction or backup.

Whether you are performing a turbo upgrade or replacing a corroded factory component, this angled drain tube eliminates the risk of oil pooling in the turbo housing, which can lead to seal failure and excessive smoking. It bolts directly to the turbocharger oil outlet using standard hardware, providing a reliable, leak-free connection for high-performance street or track use.

• Designed specifically for T28 turbochargers on Nissan S14/S15 chassis
• Angled neck provides necessary clearance for simplified installation
• Durable construction designed to withstand extreme engine bay heat
• Direct replacement for restricted or leaking factory oil return tubes
• Manufacturer Part Number: IS-T28DRAIN

Fits 2014+ Infiniti Q50 and 2017+ Infiniti Q60 models.

The ISR Performance Rear Toe Arms are essential for enthusiasts looking to correct suspension geometry on lowered vehicles. When ride height is reduced on the Q50 or Q60 chassis, factory eccentric bolts often lack the necessary adjustment range to return rear toe settings to OEM specifications. These adjustable arms provide the precision needed to eliminate excessive tire wear and restore high-speed stability.

Engineered for improved feedback and durability, these arms replace soft factory bushings with high-quality rod ends to minimize deflection under heavy cornering or acceleration. This ensures your alignment stays true during spirited driving or track sessions, providing a more connected feel to the road.

• Manufacturer Part Number: IS-RTC-Q60
• Adjustable design allows for precise rear toe alignment correction
• Optimized for vehicles with aftermarket coilovers or lowering springs
• Replaces restrictive factory rear toe links to reduce suspension deflection
• Heavy-duty construction for increased rigidity and longevity

The ISR Performance Universal Racing Tow Strap (IS-TS-R) provides a reliable, high-visibility recovery point for track and performance vehicles. Designed for universal application, this strap offers a functional alternative to rigid steel hooks, helping to prevent damage to bumpers and aerodynamic components during vehicle recovery.

Constructed from high-strength nylon webbing, this strap is finished in a vibrant red to ensure it is easily identified by track safety crews in low-visibility or emergency situations. The strap features a heavy-duty steel mounting bracket designed to bolt onto factory tow points or custom chassis reinforcements.

• Manufacturer Part Number: IS-TS-R
• Universal fitment for track and racing applications
• High-strength, durable nylon webbing
• Vibrant red finish for maximum visibility
• Heavy-duty steel mounting hardware for secure attachment

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

The ISR Performance ST Series Exhaust is a high-flow, single-exit system designed for drivers looking to reduce vehicle weight and achieve a more aggressive exhaust note. By replacing the bulky factory dual-exit muffler with a streamlined single-pipe design, this system improves exhaust scavaging and enhances throttle response. The ST series is known for its distinct burnt tip finish, adding a race-inspired aesthetic to the rear of the ZN6/ZN8 and ZC6/ZD8 chassis.

• Direct bolt-on replacement for the factory exhaust system
• Single-exit configuration significantly reduces weight compared to stock
• Features a signature burnt tip finish for a custom look
• Mandrel-bent piping ensures smooth exhaust flow and minimal backpressure
• Includes necessary hardware for installation onto factory hanger locations
• Manufacturer Part Number: IS-ST-GT86

Fits Nissan 240SX models equipped with the KA24 engine.

The ISR Performance Silicone Radiator Hose Kit is a direct-fit upgrade designed to replace aging, brittle OEM rubber hoses. Constructed from high-grade multi-layer silicone, these hoses provide significantly better resistance to the high temperatures and pressures common in performance driving environments. This kit solves the common failure point of dry-rotted or cracked factory lines, ensuring your cooling system remains sealed and efficient.

• Direct replacement for factory upper and lower radiator hoses
• Multi-layer silicone construction for maximum durability and burst resistance
• Smooth internal bore for optimized coolant flow
• Black finish for a professional, understated engine bay appearance
• Manufacturer Part Number: IS-RH-KA-BLK

The ISR Performance Pro Series Coilovers offer a comprehensive suspension solution for the Nissan Skyline R32 GTST, designed to enhance handling precision and provide a fully adjustable ride height. By replacing the aging factory dampers, these coilovers improve chassis response and stability during spirited driving or track sessions. The Pro Series utilizes a mono-tube damper design to ensure consistent performance under load, while the independent adjustment of the lower mount allows for height changes without affecting spring preload or shock travel.

• High-performance mono-tube shock construction for superior heat dissipation
• 32-way damping adjustment for fine-tuning between street and track settings
• Independent ride height and spring preload adjustments
• Bolts directly to factory mounting points with included hardware
• Manufacturer Part Number: IS-PRO-R32

Fits Nissan 240SX S13 chassis equipped with SR20DET engines.

The ISR Performance Radiator Fan Shroud Kit is a critical cooling upgrade for SR20-swapped S13 chassis, particularly those seeing track use or high-performance street driving. By creating a sealed environment behind the radiator, this shroud ensures that your electric fans pull air directly through the core rather than drawing turbulent air from the engine bay. This increases heat dissipation efficiency and helps maintain stable operating temperatures under heavy load.

• Precision-engineered for a direct fit on S13 SR20DET radiator configurations
• Maximizes electric fan efficiency by focusing airflow through the radiator core
• Durable construction designed to withstand high engine bay temperatures
• Essential for drift and high-performance applications prone to overheating
• Manufacturer Part Number: IS-FS-SRS13

Optimizing airflow is critical for maintaining stable operating temperatures in your S-Chassis. The ISR Performance Radiator Fan Shroud Kit is engineered specifically for the Nissan S14 equipped with the KA24DE engine. By sealing the area behind the radiator core, this shroud prevents air from bypassing the cooling fins, ensuring that your electric fans pull maximum volume through the radiator for improved thermal efficiency.

This kit is a direct-fit solution designed to replace the aging factory shroud. It provides a clean, professional appearance in the engine bay while offering the structural integrity needed to house high-performance electric fans. Whether you are building a dedicated track car or a reliable street machine, this shroud kit is a vital component in preventing overheating during high-load conditions.

• Fits Nissan S14 chassis with KA24DE engine
• Direct fitment for simplified installation
• Optimizes airflow and cooling system efficiency
• Manufacturer Part Number: IS-FS-KAS14

Fits select 2003-2008 Nissan 350Z models (Early DE) for LS-series engine swaps using the CD00x 6-speed manual transmission.

This ISR Performance transmission adapter plate is engineered to bridge the gap between GM LSx powerplants and the robust Nissan CD00x manual gearbox. Designed specifically for the "Early DE" bellhousing found on 2003-2008 350Z (Z33) models, this plate provides the precise alignment required for high-torque applications. Whether you are building a dedicated drift car or a high-performance street machine, this adapter is a critical component for a successful powertrain integration.

• Precision-machined adapter plate for LSx to CD00x conversion
• Compatible with 2003-2008 Nissan 350Z "Early DE" style bellhousings
• Designed for use with the CD00x 6-speed manual transmission series
• Manufacturer Part Number: IS-ZLS-CDZ6MT-E

The ISR Performance Exhaust Y-Pipe is designed to eliminate the flow restriction inherent in the factory Nissan and Infiniti Y-pipe assemblies. This component merges the exhaust pulses from the headers into a high-flow collector, reducing turbulence and backpressure to improve engine efficiency and throttle response. It is a direct bolt-on upgrade for the Z34 and V36 platforms, replacing the narrow OE piping with a high-flow design.

• Direct bolt-on installation to factory mounting points
• High-flow collector geometry optimizes exhaust scavenging
• Designed for Rear-Wheel Drive (RWD) chassis
• Replaces restrictive factory Y-pipe (Non-AWD models)
• Manufacturer Part Number: IS-Z34-Y

Fits Nissan 370Z and Infiniti G37 (RWD models only; does not fit AWD X-models).

The ISR Performance Exhaust Y-Pipe (IS-Z33-Y) is engineered to optimize exhaust scavenging and reduce backpressure on the VQ platform. This component replaces the restrictive factory unit, streamlining the transition from the headers into the mid-pipe to improve engine response and exhaust flow.

Designed for durability and precision fitment, this Y-pipe features robust construction and high-quality welds to withstand the thermal stresses of spirited driving. It serves as a direct bolt-on upgrade for RWD models, mounting to factory locations or compatible aftermarket exhaust systems.

• Fits 2003-2009 Nissan 350Z and 2003-2007 Infiniti G35 (RWD Models Only)
• Optimizes exhaust flow by merging manifold outlets into a single mid-pipe exit
• Direct replacement for the restrictive OE Y-pipe
• Precision-engineered for RWD chassis clearance
• Manufacturer Part Number: IS-Z33-Y

Note: This product is compatible with Rear-Wheel Drive (RWD) models only. It does not fit All-Wheel Drive (X) models.

Fits 2003-2008 Nissan 350Z (Z33).

Engineered to eliminate the excessive drivetrain movement common with factory rubber units, the ISR Performance Solid Differential Mount Bushings provide a rigid connection between the differential housing and the subframe. By removing the compliance of OE bushings, these solid mounts effectively eliminate wheel hop and ensure more direct power transfer to the ground during hard acceleration, launches, and drifting.

Constructed for high-stress environments, these bushings are a critical upgrade for dedicated track cars and high-horsepower street builds where drivetrain precision is paramount. Because these remove all damping between the diff and the chassis, they provide maximum stability at the expense of increased Noise, Vibration, and Harshness (NVH).

• Eliminates differential deflection and wheel hop
• Improves throttle response and power delivery efficiency
• CNC-machined for precise fitment in the Z33 chassis
• Direct replacement for worn or soft factory bushings
• Manufacturer Part Number: IS-Z33-DIFF

Fits Nissan Z32 applications.

The ISR Performance MAF Adapter (IS-Z32MAFADP) provides a secure, bolt-on solution for connecting a high-flow air filter or custom intake piping to the Nissan Z32 mass air flow sensor. This adapter bridges the gap between the specific Z32 MAF flange and a standard round intake filter, ensuring a leak-free seal and optimized induction.

• Precision-machined to match the factory Nissan Z32 MAF bolt pattern
• Facilitates the installation of aftermarket cone filters or 3-inch intake piping
• Direct bolt-on design for a simple and reliable installation
• Durable construction to withstand engine bay heat and vibration
• Manufacturer Part Number: IS-Z32MAFADP