GrimmSpeed 2015+ Subaru WRX Equal Length Exhaust Header CAN & Tuning Cables Input Shaft Diameter (inches): 1

Input Shaft Diameter (inches): 1

13144AA280 Chain Guide

550V (paired trigger)

Engine Cleaner

Using advanced 3D design and simulation software

GrimmSpeed 2015+ Subaru WRX Equal Length Exhaust Header CAN & Tuning Cables Input Shaft Diameter (inches): 1Over the years, GrimmSpeed has proven that our exhaust products are some of the highest quality and best performing in the industry because of the detail oriented approached that we put into their development. When it comes to improving on an OEM design, this attention to detail and overall exhaust knowledge allows us to identify aspects of the factory parts that can be greatly improved upon. One of the first things to note about the OE exhaust