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The Tein Flex Z coil overs are for those of you looking to upgrade to a quality suspension setup without compromising your bank account. These are ...

If you're in the market for an affordable set of coilovers that won't break the bank, then the Tein Street Basis Z coilovers would make for a great...

TEIN S.Tech Springs are an excellent step towards suspension tuning. They offer an appealing lower in ride height for a more aggressive appearance ...

Tein's Street Basis dampers for Subaru WRX STI have been enhanced with improved internal components and external coatings to deliver superior durab...

The TEIN High Tech Springs designed these springs with the latest spring and material technology to optimize comfort, performance, and quality. The...

The Tein Street Basis Z Coilovers are some the best cost-effective and quality set of coil overs on the market. This is a great suspension system f...

Engineered with precisely sized large inlets and outlets, the PERRIN Blow Off Valve effectively relieves pressure from the turbo without allowing t...

The Perrin TMIC Coupler Kit offers a sophisticated touch to your engine bay. This sturdy replacement for the factory coupler includes a 5-ply fiber...

The Perrin TMIC Coupler Kit offers a sophisticated touch to your engine bay. This sturdy replacement for the factory coupler includes a 5-ply fiber...

The Perrin TMIC Coupler Kit offers a sophisticated touch to your engine bay. This sturdy replacement for the factory coupler includes a 5-ply fiber...

The OEM BOV's tiny outlet limits the boost-venting rate and may result in leaks. The PERRIN BOV has a much larger adjustable outlet, and 1.225" inl...

PERRIN Steering Rack Lockdown creates a more solid connection between the steering rack and chassis. This increases driver feel and communication f...

Designed with racers and drifters in mind, the PERRIN Drift Button eliminates concerns about the parking brake locking in the up position while dri...

Due to the slop of the internals in the transmission, there is an unacceptable amount of horizontal slop within the 1st- and 2nd- gear shift gates....

The PERRIN Performance Afta MAF Hose effectively replaces the factory-fitted corrugated rubber hose between the inlet tube and air box. This part i...

PERRIN Performance Control Arm Bushing Kit is designed to help restore or enhance ride quality and handling of your 08-15 WRX/STI/BRZ with precise ...

The PERRIN Front Mount Intercooler Core and Beam provides a direct replacement for the limited factory top mount setup, reducing the chances of hea...

The core of an intercooler system plays a critical role in cooling the air on its journey to the engine. The factory Subaru tube and fin intercoole...

Revamp the airflow and intercooler efficiency of your 2015+ Subaru WRX with the Perrin Charge Pipe. Designed with perfectly smooth inner walls, con...

evamp the airflow and intercooler efficiency of your 2015+ Subaru WRX with the Perrin Charge Pipe. Designed with perfectly smooth inner walls, cons...

The PERRIN easy to install shifter adapter makes your shifts feel solid and positive. This should be the first part you put on your car to improve ...