No will not run on stage 2 tune! When you put 60 you WILL need a tune!!!

 

if you go with the 2.6 60lbs for the s2 you also might have to change the plugs

exactly

 

Ok, so 2.9" with current setup is fine stage 2.

Only if I go 2.8" 60pound I need a retune, I got it.

Im ordering a 2.9" for now and just sticking with my current setup lol.

 

Try one step colder plugs as well when you put on your 2.9, I think you will be happier. I'm puuting on the Zex, but others work just as well. Ngk's maybe!

 

BTW barry where did u order those from

ngks are nice

 

I have the ZEX part number 82003-4 got them here...http://www.mopacautosupply.com..but you can buy them somewhere closer to you in the US. Performace shops will have them!

 

awesome thanks

 

On the site those dont fit or our car isnt listed, are you sure those will just fit right in? 20 bucks for the set of 4, thats dirt cheap.

 

My pleasure!

 

get a 2.9 nfrom nathan and zex pluggs and enjoy!!

 

i mean you really dont need the zex for the 2.9 but it will be alot better for it

try the 2.8 heres one http://www.zzperformance.com/cobalt_...=613&catid=142

 

Im actually going to order the bigger injectors+2.8" pulley, I thought about it and its worth waitin and spending a few more bills to get the smaller pulley+bigger injectors.

Whats the best place to place an order for injectors?

 

u can get them from GM

 

i love how everyone says this but then people always end up helping the person......lol

 

2.9 Ftw

 

Don't polute! The people who help understand that some questions, although pulleys have been discussed before don't exactly resolve my questions. Thanks to the helpers!