well if i get a header..my car will be extremly loud right??? and i wanna hear the whine still....can u just get a downpipe on the stock header?

http://www.zzperformance.com/cobalt_...=542&catid=155

 

you won't hit 19 psi on a 2.85. gut the cat, try again.

95-100 mph is kinda weak man. if you're spinning that means your trap speed is higher then if you hooked. ouchies. somethings goofy. drive mod?

 

yes you can, trust me though you can still hear the whine with exhuast

not when you spin like crazy like that trust me

 

my blower whine with the 2.8 was not there, dropped to a 2.7 and can hear it again


you need to do the boost control for yours. i got first and 2nd to dead hook on the street from a 2k drop

 

your a better man than me, i run 50% boost in first and still roast em, i don't know maybe my pcm doesn't listen to me

 

I would deff get your cat checked out. I had a clogged cat on my car and with Stage 2, 2.9 pulley, Cat-back, and airbox mod I was staying dead even with a cobalt that had just a cat-back. I got the downpipe replaced under warrenty and it is a different car now, much better than it was.

I have the ZZP header/catless DP combo going on saturday, I will let you know how loud it is.

 

it does. but you're at 50% of total boost. 45% of mine is 6 psi. 65% is 11 psi. i ramp from 45 up to 70%

 

you don't limit second gear do you?

 

yulp. if i have it wide open in 1st and second it would just haze the tires till 60 mph. so i just dropped the boost down.

on 07's the max boost limit only works on 1st and 2nd gears.

 

i was under the impression if i limit boost in second it limits them in all since i have a 06

 

yepo. as far as i know. there is another way of limiting it. im just too lazy to go try it

 

yeah lucky you im stuck roasting them, i think im getting new tires maybe that will help

 

yepo. i was able to blow them off in second with the 2.8 and bald tires. with new tires, lowered and a 2.7 it just eats the tires alive.

lose lose situation

 

im thinking 225's

 

you can squeze 245's under there.


id rather spin. this way i know im not breaking anything

 

yeah i run those at the track, i don't need it for everyday though. maybe a 235 bfg if i can fit it on stock rim