I'm so dissapointed. I got the ZZP header and downpipe first, and the exhaust was a little louder and raspier. I thought it would be better after I got my cat-back....soooo wrong. The car is officially a riceburner now. I'm almost embarassed to drive it, and I refuse to get on it. It sounds like straight pipe with a coffee can on the end of it. Its 2.5" with a Magnaflow muffler, it also has the high flo magnaflow cat.
Do you think the muffler has to break in a little bit, in a sense? I'm hoping the rattle-can sound will go away after a while...but I'm not betting on it. I'm thinking I might have a resonator installed, and replace the tip with a resonated tip, but I don't know how much it'll really help, and how much of the performance that'll inhibit.

Oh but performance wise...wow! I noticed a little with the header and downpipe, but now with the cat-back....it feels like the engine is breathing sooo much better. Everything it tons smoother.

I suppose you'll all want an exhaust clip. I'll see what I can do.

 

It's a 4cyl. What do you expect?

 

That and do you have any resonators?

 

Before i demodded my IRL i had a LT header, no cat, a resonator and a nice loud dynomax muffler. It sounded like a 4cyl but the performance was worth it. You can't really expect much. It's not a V8 so it will never sound good.

 

I have a 2.5 in magnaflow resonator that they wouldn't put on cause the ******* I bought it from cut it off right at the can part itself...they were afraid it was going to rattle...

I just had high hopes I could make it similar to my talon....I figured it would be louder but with the same tone, and they sound nothing alike.

 

Turbo 4 cylinders are a different story

ROFL

Damn

 

I think I'm going to take it back to them and tell them to make it work, lol. Cause this is fucked.

Its a 22" resonator, it should make a descent difference....

 

any dsm with exhaust, they all sound like wet farts. sorry it's true.

you think your car is loud. come down to kc and drive mine. i have two resonators on mine, header, 3 inch dp and 3 inch cat back.

it's a wee bit noisy. you get used to it.

 

If thats the case, wet farts ftw!!!!

 

i have a 12 inch res, and a 18 inch res on mine.

im waiting on vibrant to get off their ass and send me more prototype crap to quiet this turd down

 

Fixed Post

 

u = teh sux @ f1x3d p0zt

 

Put my exhaust on last night,but haven't actually drven it yet. I think I'll like it as it sounded good on the test fire up.Looks great though!

 

^^^haha thats messed up

how much will an added resonator hurt performance?

you should post an exhaust clip. I got a couple videos but either nero or my camera is retarded...I can't put them on my computer.

 

mine sounds the same. with the gm exhuats it sounded awesome, but as sonn as i replaced the dp it wen to ****

 

It shouldn't hurt your performance.

 

just put my exhaust on last week and i am pretty happy... heres the link to the videos https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/corsa-touring-exhaust-72843/

 

My video cam also is lame but one of the local guys says he'll video it tomorrow.
So now I'm goin' down and find a new camcorder!

 

since we are talking about this i got the zzp 2.5 dp and a gm manifold and cat back is the Downpipe gonna make it much louder ?

 

Mine is WAYYYYY loder than stock.
However for me loud = good

 

Thats why I dont have an Exhaust

 

I only got it cause with a smaller than stage 2 pulley, its almost a necessity if you want the full gains. Thats why Stage 3 recommends exhaust. I love the gain I got from it, its extremely noticeable, gas mileage is a bit better also. My car loves it, but I don't.

I have the 3" downpipe, so the 2.5" one might not sound as bad...but I don't know. I've been listening to exhaust clips and it seems that the cat-back only's don't sound as bad as the full exhausts do...though I saw some hahns full exhaust clips that were not bad at all.

Note : Bad to me, might be different to someone else....to me bad is loud and fart-can style raspy

 

Yeah it makes sense to have one at that point for sure...I guess when I get there I'll just have to research alot to find a quiet good sounding one that still performs

 

Has anyone thought of working with the stock resonator and muffler? Maybe not so much the muffler because i think its just a big ball of fiberglass.... But has anyone thought to replace all the crush bent pieces of the stock exhaust with 2.5 mandrel pieces? The rest of the exhaust should be fine as it is 2.5 already. It should give some gains with minimal increases in sound. Just a thought. Anyone try this?

 

I hate the way my car sounds, but it moves so I guess that makes it somewhat acceptable. I was going to go turbo for that reason alone to quiet it down a bit.