Part #: 10168408. The GPP RS-Race exhaust system for the 2015-on Subaru WRX/STI VA sedan chassis is a high - performance choice. It has an aggressive look and is perfect for applications that need less sound suppression and maximum exhaust flow. With the factory catalytic converter, it offers a mild sound during cruising and a great rumble when the throttle is wide open. This cat - back exhaust is light - weight, made of full 304 stainless - steel with an 80mm (3.14”) non - tapered pipe. It exits on the right passenger - side and has no pre - resonator. Despite its cost - effective price, it doesn't compromise on quality materials, construction, and craftsmanship. The RS - Race Tri - bolt tip allows for extra customization. You can install optional RS Tip Silencers, and choose from various tip lengths and styles in stainless steel or genuine Titanium. Make: Subaru. Model: (VA) WRX STI sedan. Years: 2015 - on. Chassis: VA. Engine: EJ25 / FA20T. Type: Single sided, 80mm cat - back exhaust system. Number of pieces: 2 pcs. Piping: 80 mm (3.14 in.). Muffler Canister: GPP RS 160mm (6.3') dia. Tip: RS - RACE 115 mm (4.5 ') x L 150mm (5.9'). Gasket(s): 3.0 ' oval (qty: 1 included) replacement. Resonator: No. Weight: 25.7 lbs. Sound level: 98 dB(a). HP: 13 hp. TRQ: 11 ft - lbs. GPP engineers use a proven, compact, high - flow straight - through Racing Sport muffler canister and large 304 stainless - steel mandrel - bent tubing. The RS - RACE systems provide an aggressive sound quality and feature a removable Tri - bolt tip mounting system for customization. Note: If you're using a stock j pipe or downpipe, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046 is required.



Using this Greddy GPP RS - Race cat back exhaust is easy. First, make sure you have all the necessary tools. Check if you're using a stock j pipe or downpipe; if so, you'll need the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter. Install the exhaust following the included instructions carefully. When it comes to maintenance, regularly check the connections to ensure they're tight. You can clean the stainless - steel parts with a mild stainless - steel cleaner to keep it looking good. As for sound control, you can use the optional RS Tip Silencers if you want to reduce the noise. Also, be aware that if you notice any unusual noises or vibrations, it might be a sign that something needs to be adjusted or checked.