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HELP!!!Serious exhaust problem here

sadamz_boss

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sadamz_boss Enthusiast

sadamz_boss

Posted
Posted

So heres my story i bought a used Corsa sport cat-back and i installed it and it had a crappy rattling noise by far i think its the baffle inside so if i remove the baffle will the sound of my corsa change ? or will it become just louder ? its really annoying when on idle but on the road its silent thanks in advance

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

Sound will definitely change. Those baffles are how Corsa tunes the sound.

GasHog369 Senior Enthusiast

GasHog369

Posted
Posted

If he can get to it.. Wouldnt he have to cut the muffler open tho to get to the baffels?

BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted

Corsa has a lifetime warranty I believe, give them a call and see what they say before you attempt to make any repairs. You may end up with a brand new one.

 

The baffle is inside the muffler, I don't see any way of fixing it properly without cutting the muffler. It is fixable without destroying the muffler but unless your friend really knows what he is doing, I wouldn't let him try to fix it. I had to repair a similar issue in the past and it wasn't all that easy. What I did was took the exhaust off my truck and cut a long square hole out of the top of the muffler on the side where the baffle was loose. After cutting the hole, I was able to tack weld the baffle and then welded the top piece of the muffler back on. It sounded good as new when I was finished. Could not see how the repair was done when the muffler was reinstalled because all the work was done from the top.

If you don't trust him enough or he can't do it, take it to a good exhaust shop.

Stevens03 Senior Enthusiast

Stevens03

Posted
Posted

Corsa has a lifetime warranty I believe, give them a call and see what they say before you attempt to make any repairs. You may end up with a brand new one.

 

 

This :thumbs:

sadamz_boss Enthusiast

sadamz_boss

Posted
  • Author
Posted

sorry i didnt reply really early i had a few complications....regarding the lifetime warranty my exhaust has been cut and weld so the lifetime warranty is pretty far from me

BlackZ71Silverado Senior Enthusiast

BlackZ71Silverado

Posted
Posted

sorry i didnt reply really early i had a few complications....regarding the lifetime warranty my exhaust has been cut and weld so the lifetime warranty is pretty far from me

 

 

Sorry, must have missed that in your first post.....So how did you make out with this issue?

sadamz_boss Enthusiast

sadamz_boss

Posted
  • Author
Posted

still i did not repair it but i'm in the process of finding time ..... + i have a new question if i gut the cats will the check engine signal get triggered and what is the correct way of gutting them ?

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

There is no "correct" way. Unless they're damaged/clogged, gutting a modern cat won't gain you anything. You will get a check engine light if you gut them as well.

11Silvy Enthusiast

11Silvy

Posted
Posted

Yes you will get CEL if you gut the cat, may not right away but when you do that, the rear o2 after the cat will get too much exhaust flow and trip out...

  • 2 weeks later...
sadamz_boss Enthusiast

sadamz_boss

Posted
  • Author
Posted

GOT IT FIXED and i'm back on track no rattling anymore but i DO NOT Reccomend doing this unless ur really really used to welding and cutting ..... i got a sweet deal on a gibson shorty headers and a factory silverado 4.8 y-pipe that turned out not that much of use unless i replace the end flange which is an inch smaller that my HD's any ideas ? BTW i got the shorty and y pipe for less than 300 bucks

sadamz_boss Enthusiast

sadamz_boss

Posted
  • Author
Posted

The headers we're installed on the 4.8 and i was told that it is the same and is not different from 6.0 to 4.8 true ? or not true ?

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