Grimmspeed Up Pipe 3-Bolt Inlet - Subaru 2002-2014 WRX / 2004-21 STI / 2005-2009 LGT / 2004-2013 FXT | 007064

Adding an aftermarket Up Pipe is one of the first things you should do to your Subaru. Arguably one of the best $/HP ratios. Our goal was to make a premium heavy duty Up Pipe for you. Design We designed this Up Pipe using our in-house FARO Arm along with the latest and greatest Solidworks CAD software. This assures that we can offer you the most precise and best fitting Up Pipe on the market. In short, OEM exhaust manifold pieces are inconsisent so we used our reverse engineering hardware/software to scan countless OEM pieces to determine the range of best fitments for our aftermarket pipe. This allows us to be very confident that your flanges will be leak free and the Up Pipe will fit nicely. PerformanceFlow Bench Results vs. OEM at 28" WCOEM Catless - 244.6 CFMOEM Catted - 164.7 CFMGrimmSpeed - 292.6 CFM Spool Up Application specific but generally you will see 300-400rpm quicker spool up HP Increase Application specific but generally you will see 8-10HP increaseQuick Specs Gaskets