Catless longtubes - making quieter?

[Crackerjack17]

So I recently installed my catless longtubes and with the corsa sport it's just too loud at part throttle. Sounds awesome wide open, but way too loud for where I live. I love the corsa sport and would hate to get rid of it.

Anybody put bullet/glass packs where the cats would go?

Any suggestions? I would like to keep 3" all the way back if possible. Another thread mentioned borla touring.

Best high flow cats?

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[beefcake]

quiter exhaust or oem headers

 

[CW16GTPP]

I would get the cats and see what you think.

I have the high flow cats on my headers, and the sound is manageable under 3k rpm.

 

[wireeater]

try swapping to touring and install a couple resonators.

 

[Zelek]

I haven't installed anything yet, but this is why I went with ARH catted longtubes and the Corsa Sport. At any point if you're ever contemplating headers, always go with a quieter catback. Cats do two things, muffle noise a bit and it's cleaner.

 

[Crackerjack17]

Thanks for the reply's. I was out tonight and it is just plain rude. lol. I mean WOT will leave chills down your spine. It sounds like the devil is going to rip your soul out. I freaking love it, but there is no way I can drive it the way it is. I ripped on 2nd spinning the tires under a bridge and it's as loud as a jet plane on takeoff. I might try a set of high flow cats or I thought of buying the 3" in/out borla resonator and having piping made to mate up to the corsa sports. I love the corsa sport mufflers and don't want to get rid of them. And, just an FYI there is no drone even as loud as it is. Corsa's are awesome!

 

[Zelek]

Thanks for the reply's. I was out tonight and it is just plain rude. lol. I mean WOT will leave chills down your spine. It sounds like the devil is going to rip your soul out. I freaking love it, but there is no way I can drive it the way it is. I ripped on 2nd spinning the tires under a bridge and it's as loud as a jet plane on takeoff. I might try a set of high flow cats or I thought of buying the 3" in/out borla resonator and having piping made to mate up to the corsa sports. I love the corsa sport mufflers and don't want to get rid of them. And, just an FYI there is no drone even as loud as it is. Corsa's are awesome!

It's still going to be loud with the cats, but may take a little rasp away. You'll notice it more on the cruising and accelerating tone at partial throttle, but WOT will still be nuts. The resonator + the cats should help more.

 

[stoli]

Cats will be expensive and not cut down much on overall volume. You'll be better off either getting different mufflers or having a couple resonators welded in after the x-pipe.

 

[luisinho93]

I'd say add a resonator.
Currently running SW O/R with Mach Thunder catback. It's louder than your set up at a cold start and open throttle. Only complaint is when I start it in the morning but that's why I have my commuter for :(

 

[BluByeU]

Cats will be expensive and not cut down much on overall volume. You'll be better off either getting different mufflers or having a couple resonators welded in after the x-pipe.

^^^ This is the route I chose...

 

[TooSoonJunior]

So I recently installed my catless longtubes and with the corsa sport it's just too loud at part throttle. Sounds awesome wide open, but way too loud for where I live. I love the corsa sport and would hate to get rid of it.

Anybody put bullet/glass packs where the cats would go?

Any suggestions? I would like to keep 3" all the way back if possible. Another thread mentioned borla touring.

Best high flow cats?

How is the in cabin sound? I am about to switch to your same setup from stock manifolds/cats and a solo mach v to your setup. The solo has a lot of interior sound, wouldn't call it drone so much as just sound. I have had a kooks catless to corsa sport setup on my 850whp hemi and was extremely happy how quiet it was inside, even WOT. Outside was absolutely insane. it was perfect.

 

[1badrz28]

I have 6 inch resonators attached to the headers with my Sport. It's a little louder after the cat removal, but very tolerable.

 

[Chris@Lethal]

We had some resonators installed on a catless header with XTREME cat back and it helped alot!

 

[Crackerjack17]

How is the in cabin sound? I am about to switch to your same setup from stock manifolds/cats and a solo mach v to your setup. The solo has a lot of interior sound, wouldn't call it drone so much as just sound. I have had a kooks catless to corsa sport setup on my 850whp hemi and was extremely happy how quiet it was inside, even WOT. Outside was absolutely insane. it was perfect.

6th gear cruising with the windows up on level ground and you can barely hear it. But going up a hill under load at 2500 rpm and its a loud growl from the back. but there is absolutely no drone. Windows down, and its loud growl, but all the noise is in the back. i love the Corsa's, but wow without the cats the volume is just too much for me. It is a touch metallic raspy. Wot is insane.

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