I am new to the cobalt scene. I have an 06 SS/SC. I plan on going to Stage 2. I was wondering what exhaust diameter is recommended. Also, what CAI's are givin the most ponies?
Thanks

 

GM stage 2? stage 2 what?

 

3'' on the exhaust. Injen, K&N, and AEM are the CAI's Id recommend. Also Hahn isnt too bad, but there have been some issues with "rusting on the bottom of the intake itself.

 

with it being supercharged I would go with the 2.5 inch exhaust. The 3 inch is great dont get me wrong but with a stage 2 you want to stay pretty mild. The 3 inch exhaust it good for turbos. With the 3 inch gains over the 2.5 are close to nil.

 

no

YES

Look dont get me wrong stg2 is great in the door performance increase, but your gonna want to get a 2.8 on there eventually and that require 60's, IMHO go look at the ottp or zzp stg kits and take your pick, grab a 3' zzp or ottp CAI and find yourself a good header/dp combo and slap on a 2.5 inch exhaust

POW 260whp!

 

2.5" if you are going with GM Stage 2. You will loose a lot of low end power with a 3" system, unless you are making the power to warrent one.

We are talking about a 2006 SS/SC not an SS/TC. There is no Hahn intake for the SS/SC.

 

2.5 catback with zzp header dp combo...works wonders...u can ride ur "ponies" all day

 

+1 HAHN ftw.. sounds awesome in person

 

The only problem with hahn is its one of the more costly exhaust....i dream of having it though. i wanna save up for it but idk if i can wait that long

 

Yeah man I want one too.

 

im going vibrant i think

 

Is it 2.5 or 3?

 

I ordered the ottp stage 1 kit...42's, 3"pulley, 7k redline...thanks to all that replied, im gonna go with a 2.5" with h and dp. Cant wait to see what it'll do!

 

Enjoy it

 

enjoy it dude


vibrant is 3in. apparently the loudest best sounding exhaust for our cars...i love the way it sounds not raspy like other exhaust like megan or magnaflow

 

so would 2.5 be good for just a reg s/c'd cobalt? i'm new to this as well and i want to start off with the exhaust system and headers...I don't know if i will go stage 1 or 2 but i might...

 

2.5" is good for a modified SS/SC as well. You really don't need a 3" exhaust on these cars until you are making serious numbers (ie. 300+ whp).