These 350Z / G35 Stainless Steel Test Pipes with In-Line Resonators replace your factory catalytic converters, letting all the exhaust pass through freely, but not the noise. The full stainless straight through converter replacement, but with a stainless exhaust resonator welded in-line. This gives an equal amount of flow, but without the raspiness. The exhaust note will only be slightly louder then stock, and have a slightly deeper tone.
We have these on our ACP project Z, with GReddy Twin Turbo, and gained 37 HP!
Must for FI application
Stock 350Z and G35 can expect 5-8 HP gain

These are test pipes w/ resonator NOT Cats
We have them listed in the CAT, Catagory but again our a test pipes w/ resonator


** These pipes replace your factory converters and are NOT street legal, for off-road use only**