Add another one to the STI club....
Its good for sound gains, slightly cooler air, and slighly less restriction resulting in about 5whp on an untuned car (tuned expect up to at least 15whp). As it is, the stock Intake (which is technically a CAI) on the STi is pretty good. Some aftermarket CAI's mess with the MAF signal which will cause a lean condition. Luckily, the APS CAI is one of the good ones (Injen is another) that doesn't and subsequently doesn't require a tune.
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Originally Posted by esemes
STOCKER MUFFLER (has "STI" imprinted on the LHS)

the muffler itseld is the size of 2 (xl) mailboxes..........

and has 2 cats downstream of the turbo outlet (with alot of bolted-on shielding)

good luck
ese
ps- LMK if you need any other data.

the muffler itseld is the size of 2 (xl) mailboxes..........

and has 2 cats downstream of the turbo outlet (with alot of bolted-on shielding)

good luck
ese
ps- LMK if you need any other data.
Guest
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Originally Posted by M249SAW
If you want you can PM me the VIN and I could tell you if we have worked on it as well as any mods and repairs.
I dont know shit about these cars, can someone tell me about what type of whp I would get from this stuff and what it retails for. (itemized list would be helpful).


