rbsileighty wrote:GT spec tapers from small to big... not sure on exact measurements but I think it is something like 70mm-85mm or something like that... pretty big for a NA motor, but good for a turbo
Check out Fujitsubo (db increase and power increase is displayed per application) for a quiet system that will open things up a bit on a NA car.
http://www.fujitsubo.co.jp/mc-prod/