Author: STi Mods

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Water Pump Housing for STi

Killer B’s Water Pump Housing is a much more robust design. Designed using state of the art 3-D CAD software to assure maximum flow with minimum turbulence for the best performance possible! – 3D...

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New Subaru Levorg STI Sport Wagon

Subaru introduced the STI version of their Levorg wagon. Equipped with a regular 168hp (170PS) 1.6-liter and 296hp (300PS) 2.0-liter turbocharged engines that are paired exclusively to a Lineartronic CVT automatic untouched. The only...

Turbo Wrap Kit for STi 0

Turbo Wrap Kit for STi

Insulating the turbine housing of the turbocharger keeps the compressor side cooler, reducing underhood and intake temperatures. Plus, it increases turbo response by keeping exhaust heat in the turbine housing, maintaining exhaust gas velocity...

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5 knob speed shift for STi

This 5 Knob Speed shift for STi has the shape and mass make for one of the most enjoyable shifting experiences. Milled from a solid block of stainless steel, the Slammer comes with a...

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Carbon Fiber Hood FOR WRX/ STi

W hood combines performance and aesthetics to form a component that is light-weight, durable and downright stunning. The hood’s design features dual side, multiple heat release vents and scoops to ensure superior cooling.  

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HiFlow Exhaust Manifold Crosspipe

This GrimmSpeed HiFlow Exhaust Manifold Crosspipe fits the 2002-2005 WRX / 2008-2014 WRX / 2004-2014 STI / 2005-2006 LGT. 50% of your exhaust gasses are passing through this tiny tiny pipe and that is...

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Catless Shorty Downpipe

Direct bolt on and replacement for primary cat section. Replaces only the primary catalytic and retains the secondary cat maintaining a stock look and still getting a nice increase in hp and better spoolup....