Invidia [15-21 WRX/STI] Full Titanium Cat Back Exhaust | HS15SW4TRG

Casting Flanges beta 6/4 Titanium Alloy, Awesome strength, High durability. Bended forming, Piping Inside and outside smooth with Good exhaust efficiency, reducing welding failure issues. Use Japan Nippon steel & Sumitomo metal high quality pure G5 Titanium raw materials, heat resistant titanium alloy, same material as 2017 Nissan GTR factory titanium exhaust!

Invidia 80mm Single Outlet Full Titanium Cat-Back Exhaust

Note: Are you using a stock j pipe or downpipe? If yes, the GrimmSpeed Subaru Stock DP to Aftermarket 3 in. Catback Adapter p/n 077046, is required.