less back pressure. i assume you would get like 2-5 hp at most but it would sound like you had an external wastegate. basically gives less back pressure so the gasses can escape faster.

ive learned alot since i bought my car.


really there is no good reason to buy a t28. it cost alot more, its less efficient, and the only reason it has a bottom end is because it has no top end. get the evo 16g

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11.65 @ 115