1 3/4th ZZP Mid length Header
3" Catless DP
Stock Catback

OR

ZZP 3" Catless DP
Monza 2.5" Catback

Which one is going to produce more power? I'm guessing the first one but i want to make sure before i order.

 

Header definitely!

 

x2 1st setup should yield better gains

 

I dunno...i say combo 2 because the stock muffler is way restrictive

 

header easily. biggest bottleneck in all ecotecs, followed by the DP

 

I've heard that this header likes to leak at the collector. Any truth to that?

 

never heard that before

 

I'm ordering it no matter what. Leaks or not.

 

I have that same combo and love it. I had it installed at zzp and they said my stock exhaust is not restrictive...yet.

 

1st all the way

 

get the jbp vortex its sick

 

490 for just the header vs 330 for the header and DP. No thanks. JBP is a complete ripoff

Whats the best size pulley to combo with this exhaust? I'm looking at going with a 2.8", 60lbers and a ZZP PCM. Anything else needed?

 

Personally I would stay away from the ZZP PCM. No offense to them but it is always worth getting a custom tune.

 

http://cobalt-addiction.com/performance.htm id say go with this header i have this with the zzp 3in down pipe they bolt right up no mod to fit. i got sick gains from the ca v2

 

That bad? Hmm.