Thinking about gmpp manifold

YelloEye · Mar 12, 2011

If you buy a pair...you have issues....there is only 1 exhaust manifold on a 4-cyl motor.

09balt · Mar 12, 2011

I meant 1 lol dont worry

cobalt123 · Mar 13, 2011

Get either vibrant or zzp

09balt · Mar 14, 2011

A friend of mine that has an supercharged ss told me to go with zzp. So whats the big deal about extruded honed manifolds?

Cobalt Tom · Mar 14, 2011

te gmpp manifold just doesnt give you the flow. an aftermarket header will do what your looking for

I have the OTTP longtube and love it.

09balt · Mar 14, 2011

So basically with the gmpp header did they just bore out the ports to make it bigger and for more gas to exit from it?

YelloEye · Mar 14, 2011

09balt · Mar 14, 2011

Now i see

sfwg · Mar 15, 2011

just get a zzp and b happy dont get ottp they suck at shipping stuff o btw ne on wanna buy a ottp hardcore bar?