Performance increases on the turbocharger Subaru Impreza WRX/STI is found in a number of places: solid tuning, upping the boost and providing a free-er flowing exhaust. The GTSPEC UpPipe with External 44mm Wastegate Setup helps in all those departments. The new line of GTSPEC UpPipes and Manifolds provide beautifully constructed provisions for External 44mm Wategates (not included) while replacing restrictive catalytic converters and increasing exhaust flow to and from the turbocharger.
- GTS-PER-1371 – SS UpPipe w/ EGT Bung and 44mm External Wastegate Setup (2Bolt)
- GTS-PER-1372 – SS UpPipe w/ EGT Bung and 44mm External Wastegate Setup (3Bolt)
- GTS-PER-1373 – SS GEN II Racing Exhaust Manifold w/ 44mm External Wastegate Setup
- GTS-PER-1374 – SS Equal Length Exhaust Manifold w/ 44mm External Wastegate Setup