RST-0507 Spec C TGV Delete Set (top feed) $150
RST-0507B TGV Delete Set (side feed) $150


Eliminates the intake restriction created by the tumble generator valve system. Top feed version fits EJ205 WRX. Side feed version fits EJ255/EJ257 models with side feed injectors. Both types are full bore (no divider wall). Set of 2 pieces. Add $23 for full set of replacement gaskets (4 pcs.).

Equal Length Exhaust Manifold & Up-pipe $1070


APS's stainless steel split-pulse equal length manifold is designed to retain maximum exhaust energy to spool the turbo while presenting minimal flow restriction. Direct bolt on for GDB STi models. Other models can fit but must convert the oil pan, oil pickup, and oil dipstick to STi type. Complete with hardware and gaskets.

Turbo Up-pipe $245


Stainless up-pipe eliminates flow restricting cat found on the stock up-pipe (primarily for cold-start emissions control). Thick flanges and flex joint ensure long life and leak-free operation.

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