I want to get my stock headers ported and my PCM reprogrammed on my '01 Monte with just a CAI and some pipes, who do you guys reccommend?

 

Factory exhaust is called manifolds, not headers.

You can have your factory rear manifold ported, but getting the front done is retarded. You can buy an aftermarket piece called a powerlog (search over at www.zzperformance.com) it replaces your stock cast front manifold with a tubular steel piece similar to your stock rear manifold.

Personally, if it were just a basic bolt on car- I'd do a powerlog up front and be done with it. If you're considering a powerlog up front and a ported rear (or both ported stock)- you're better off just getting headers with how cheap they've become.