ordering it now. i decided if its too loud ill just get a muffler and some v-band clamps. cant wait to get it, i love how our cars sound kinda like a diesel with a straight pipe.

 

nice choice you'll love it.......until a cold start lol.

 

I have a 3" straight pipe just goes down to a 2.5 for like 12" where it ends since it would be too low to the ground (i have a side exit) and the bitch is loud but i love it

 

I have a 3 inch straight pipe from treadstone. Sounds nice

 

straight pipe here too. 3" all the way with just a hahn resonator. sounds badass

 

Don't mean to thread jack but does anyone have a straight pipe with stock downpipe? If so how's it sound?

 

I am considering ditiching the muffler but I am unsure....I have a ZZP DP and hahn catback now...its pretty loud..but I love the way they sound with out mufflers...

 

I just ordered the treadstone stainless 3" catback with no muffler or resonator. If it's unbearable i'll slap a muffler on it.

 

im gonna need a video ahahha debting if i should get this or not

 

ive had it installed for a couple months now.

pros:
sounds mean as hell
not that loud on the highway unless your going up a steep hill
pretty quiet when your just cruising


cons:
cold start up is LOUD (you can tune out cat warm up however)
if you get on it too much it gets loud
flooring it under 3-4k rpm doesnt sound too good. lol.



other than that its great. sounds similar to an srt-4. just dont floor it at low rpms. when your WOT at higher rpm's (you should never go WOT at low rpm anyway) it sounds awesome, but very loud. i havnt had a problem with it yet.

 

I went open catless downpipe for like a day it got old fast but sounded mean at WOT. sounded like it had a wastegate dump. post up some vids when you get it on.

 

Here's alittle vid I shot with a GoPro camera. 3" ZZP catless downpipe with the treadstone 3" straight pipe catback

YouTube - ‪Cobalt ss/tc exhaust sound clip‬‏

 

looking into the 3in. zzp straight pipe, with a zzp catless dp.
thoughts?

 

I have a quiet exhaust that sounds great so I can't comment. The one you want is pretty loud so keep in mind you have to live with it. The highway drone would drive me nuts. May want to throw a resonator in there just for that.

 

I went catless and it's perfect. Completely normal during most driving situations but gets real loud on throttle and boost.

Straight pipe would get real annoying really quickly. Wouldn't be able to have a conversation while driving. Also don't be a dick.

 

I agree with these guys. I have the turbo xs rfl and catless dp. Its no muffler and 1 resonator. Sounds mean and you can keep it quiet if you want. Just a straight pipe would be overly loud and annoying

 

Will probably throw a res on there then.