07/04/2017 · Looking for the quietest J-pipe for my daily driven 2017 WRX with SPT/STI exhaust. What do you guys think between:-Cobb Catted Resonated J-Pipe 200 cell cat-Grimmspeed Catted J-pipe 300 cell cat-Any other brand that I may not have considered Thanks. Gives you more room if you pull the heat shields off the j pipe. THere are 2 right where it meets the turbo. It'll give you more room to get the nuts/ brackets out of the way. Make sure you have an adapter if you plan on using the stock cat back exhaust. 3" to 2.5" stock. Good luck! The j-pipe is a great piece. Fitment is perfect and the sound is so much more aggressive paired with my Greddy catback. Getting the stock pipe off is by far the toughest obstacle with this install and penetrating oil is a must. I would also recommend the SK semi-deep impact socket because it made the nuts on the studs much more accessible to reach. 2017 Subaru WRX Exhaust Downpipes. Home > WRX > 2017 > Exhausts > J-Pipes / Downpipes: Sort By: Page of 2: COBB Tuning 3" Catted J-Pipe Non-Resonated For 2015 - 18 Subaru. GrimmSpeed Stainless Steel Catted J-Pipe For 2015 - 18 Subaru WRX 6.

14/09/2019 · 2017 wrx TurboXS J Pipe installed. Top heat shield not fittings Newbies & FAQs. From X-pipes and header collectors, to down pipes and extensions, we have the performance exhaust pipes to build a custom exhaust system for your 2017 Subaru WRX. View the latest J-Pipes products at. Free Shipping on orders over $149.99 48 States SubiSpeed - 2015 WRX / STI Parts and Accessories. HKS Stainless Steel Catted J Pipe - 2015 WRX. $1,180.00. Agency Power J & Intermediate Pipe Catted or Uncatted - 2015 WRX. $595.00. NEW.