TR all stainless steel single scroll equal length exhaust manifolds for New Age WRX STI. Lost wax finished with TIG welding & machine bended pipes. Stable & effective connection by the slip joint bracket and air leakage avoided by the 3 bolts flange design up-pipe.
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Notes:
02-05 wrx requires 2.5l sti oil pan (on some)
06-07 wrx requires sti oil cooler and sti oil pan