GTSPEC GEN III Equal Length Exhaust Manifold For EJ20 / EJ257

GTSPEC GEN III racing exhaust manifold for 02+ WRX / STI. Equal length design. Will fit into EJ207/EJ257 engine, including 04+ Legacy GT turbo. Twin spool turbo version available ***requires the 2.5L oil pan*** ***EJ20/25 motors that has angled oil filter might need OE oil cooler from 02 wrx*** ***4-2-1 design, the 4 primaries are 42.7mm, the 2 secondaries is 45mm and the uppipe is 60mm***