Parts for my Z06

[SSmokinn_SS]

@Mk4 30R

American racing 1-3/4 or the 1-7/8s if you plan on a cam + more.

id do the catted mid pipes unless you like the smell, because modern high flow cats are plenty efficient, and a couple HP isnt worth the trouble of inspections and that nasty exhaust smell.

the American racing headers are about 1400-1500$. if you can handle the install youll save a bunch, but still need the PCM recalibrated after. 350-500$ for that probably

it was actually proven that on a H/C 346ci motor, between 1 3/4" long tubes compared too 1 7/8"…the 1 3/4" actually made the same amount of power…however, when it came too 383+ C.I LSx’s, the 1 7/8’s shined.