TR all stainless steel single scroll unequal length exhaust manifolds for Classic GC8/GF8, New Age WRX STI GDA GDB Type A-B. Lost wax finished with 4-1 connectors smooth inner surface for better flow. Stable connection and air leakage avoided by the 3 bolts flange design up-pipe. A 45mm size pipe enable better flow of exhaust.
Included:
Notes:
02-05 wrx requires 2.5l sti oil pan (on some)
06-07 wrx requires sti oil cooler and sti oil pan