Invidia J-pipe downpipe with bottom high-flow catalytic converter for 2015–2021 Subaru WRX with manual transmission. This downpipe replaces the factory J-pipe/downpipe assembly and is intended to improve exhaust flow out of the turbo while fitting the manual-transmission WRX layout. It’s offered as a direct-fit aftermarket downpipe with a bottom-position high-flow cat.
Invidia 15-21 Subaru WRX w/ Manual Transmission J-Pipe With Bottom High Flow Cat Down Pipe