Just got the full CTI 3" exhaust put on and its a little louder than I'd like, is there a different resonator or something I can get that will quiet it down a little? Also it bangs somewhere in the rear over bumps and what not (have read this is a common issue) what can be done to prevent this as well?

 

maybe one of your hangers got loose?

 

3" exhaust is silly. the only thing it does is make the car louder

 

Proof?

 

I think a few of us TVS owners might have to disagree with you on that statement.

 

Larger exhaust can often make it louder. But often it just makes it deeper.

 

you can't compare this car to that car or different dynos ... put a 3" up against a corsa 2.5 on the same dyno, same car and see what happens.

 

That is something I myself am not interested in doing. It cost the same $ and takes the same amount of time to install a 2.5" or 3" exhuast. It's a trade off. So unless you care more about db levels then performance why limit your build by putting on a exhaust that will limit you down the road depending on how you far you plan to mod your car. I'll be the first to say my car is stupid loud but that is something I knew would happen.

 

I request vid of how loud the CTI exhaust is...I'm most likely going to buy it in the next 2 days and I wanna know what it sounds like...if vid is possible please

 

ok so what about the exhaust moving around? is there a fix for that?

 

could be as simple as either an extra hanger or a shorter or longer hanger depending on where it's hitting. If it's hitting the body, longer hanger. If it's hittin the suspension, you'll need a shorter one.

 

ok how about making it quieter? is a different resonator an option?

 

You could go with a longer res like a 36" or somethin, but your best bet would be to get a diff muffler. Are you runnin catless?

 

No it has a high flow cat right now... I think the res right now is 16 or 18"... how do you add a longer one?

 

First you gotta buy it(obviously) and then take it to ur local muffler shop unless you can do the cut/weld work yourself and just cut the old one out and the additional length for the new one to fit in and weld it back together.

So, if it has an 18" res in there now and say you got a 24, you'd have to cut X" off the exhaust pipe to make it fit in there. Best bet is to mach up to new res next to your exhaust and make marks where you'd wanna cut. If you take too much out, it'd be a pain to weld in pieces to make it fit. If ur not comfortable or know how to do this work, muffler shop is the best idea

 

Yeah it would definitely be an exhaust shop doing the work... I am unsure what the CTI exhaust comes with as far as a res goes... Hopefully I can get one that will quiet it down a bit as well as maybe a different hanger to make it not bang around in the rear.

 

If you take it to an exhaust shop, they should be able to fix everything in about an hour. It's not rocket science to figure out why the exhaust is bangin or what it's hitting so it'd be a quick fix. The res is what would take most of the time. No matter what you do tho, that exhaust is going to be loud, esp if ur running header, dp, and then the full 3". Headers usually wake them up quite a bit even on a stock exhaust

 

and i bet it added about zero hp over a good, low restriction 2.5" exhaust

 

This isn't a debate on which one makes more power, take your "I am right you are wrong" attitude somewhere else cause it isn't helping at all.

OK thanks for the help, what size exhaust are you running?

 

are you running any type of suspension mods? my 3'' inch hits becuase of my sportlines no real fix to it besides getting a 2.5 catback or losing the springs

 

my guess is its knockin at the over axle shake the tail pipe

 

wanna make a sound clip? I want to hear how loud this is.

 

I still have the 2.5 over the axel and I'm on stock suspension so uh....I have no problem at all with exhaust. But I've had issues with the exhaust hitting the suspension in other cars I've had.

 

My 3" was hitting the axle. I had to get higher exhaust hangers.

 

Are you lowered? I have Eibach springs with the 3" exhaust so do you think that same thing will work for me?