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- Newly developed 100mm wide core delivers double the volume of the stock intercooler providing outstanding cooling efficiency
increased horsepower
This “Dual Function” gauge is the perfect way to monitor critical engine parameters on one display
Proudly Designed
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GrimmSpeed Delrin Black Shift Knob - Subaru WRX/STI ProSport - Newly developed 100mm wideDescription Each knob is machined from Delrin Duracon, an extremely durable thermoplastic. Each knob weighs 120g, a fraction of it's Stainless Steel counterpart. Each shift knob also receives laser etched GrimmSpeed logos around the base. The shift knob itself features a hybrid design that is comfortable in both overhand, and side grip driving styles. These shift knobs are designed to fit the 6spd right out of the box, so if you'd like to hold the
