ISR Performance Exhaust Silencer 4 inch | IS-UNIS-4 vendor_Humble Rumble This adaptor plate is designed

This adaptor plate is designed to allow seamless mounting of a STI 75mm drive-by-cable throttle body to an aftermarket intake manifold that retains the stock bolt pattern and features a 75mm bore

etc to squeegee out the remaining water

One of the main complaints about the WRX and STI interiors is the extremely low height of the center console arm rest

By using a 57% larger intercooler core with streamlined intercooler piping

ISR Performance Exhaust Silencer 4 inch | IS-UNIS-4 vendor_Humble Rumble This adaptor plate is designedISR Performance Universal Exhaust Silencers 3" or 4" Can be used on any Exhaust system with 3" or 4" tips. Exhaust needs to be drilled to accommodate the Silencer set screw hole. Set Screw not included This item is non application specific. Please verify compatibility before purchase. May require some modification for proper installation. Note: ISR orders might take a day of processing. If you need it sooner, contact us directly.