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2009-2014 Cadillac CTS-V Performance Mods Discussion, Kooks Headers and Corsa Sport Mufflers... in Cadillac CTS-V Series Forum - 2009-2014; Anyone running this combo? Looking for info on throwing CEL, Drone and sound quality. Had this on my 05 and ...
  1. #1
    jpoole's Avatar
    jpoole is offline Cadillac Owners Fanatic
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    Kooks Headers and Corsa Sport Mufflers...

    Anyone running this combo? Looking for info on throwing CEL, Drone and sound quality. Had this on my 05 and it sounded great. Also, don't want to void warranty so wondering if you have to tune if installed. Also, any info on the stealth tune would be great. I have looked and looked but don't find what I am looking for.

    Thanks, Jeff

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    Mike TexaSS is offline Cadillac Owners Fanatic
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Yes you need a tune. Kooks and corsa sport would be the loudest thing you have ever herd.

    I have Kooks with cats and Corsa touring its so loud!

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    jpoole's Avatar
    jpoole is offline Cadillac Owners Fanatic
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Well that answered that question. LOL. I don't want to make this thing a beast like my 05 (B&B Headers and Catback) Things have changed, corsa was the milder one on those cars. Just when I got the corsa installed on my '10, I looked at the factory exhaust and it made my stomach hurt & I can't locate a system to change the catback to the corsa axle back. Actually, as much as the corsa cost it should have been a catback... Factory exhaust had crimps and bends and more crimps, and I didn't even see why they were smashing the pipes like that! Seemed to have plenty of room for mendral bends.

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    Titaniumseeker is offline Performance Enthusiast
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Quote Originally Posted by jpoole View Post
    Anyone running this combo? Looking for info on throwing CEL, Drone and sound quality. Had this on my 05 and it sounded great. Also, don't want to void warranty so wondering if you have to tune if installed. Also, any info on the stealth tune would be great. I have looked and looked but don't find what I am looking for.

    Thanks, Jeff
    Yep, you will most definitely need a tune and it will have a higher pitch and be louder than most. I added racing baffles and it did help a little... The Corsa exhaust without the headers will make the car quieter than OEM during normal driving. But will wake up at WOT.

  6. #5
    JOEYCTS-V's Avatar
    JOEYCTS-V is offline Cadillac Owners Connoisseur
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    Are you referring to the corsa sport or touring?

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    King335i is offline Cadillac Owners Enthusiast
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Not sure whether you're referring to the Corsa sport or touring, because with my sport the car sounds louder than OEM during normal driving, and better too.

    Quote Originally Posted by Titaniumseeker View Post
    Yep, you will most definitely need a tune and it will have a higher pitch and be louder than most. I added racing baffles and it did help a little... The Corsa exhaust without the headers will make the car quieter than OEM during normal driving. But will wake up at WOT.

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    jpoole's Avatar
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    Re: Kooks Headers and Corsa Sport Mufflers...

    I have the Sport verison of the axle back. Just the middle section looks so restrictive, anyone make a cat back to corsa in stainless?

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    Titaniumseeker is offline Performance Enthusiast
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Quote Originally Posted by King335i View Post
    Not sure whether you're referring to the Corsa sport or touring, because with my sport the car sounds louder than OEM during normal driving, and better too.
    It was the Touring version. The Sport version was not available until much later and resulted from the negative input comments on the tone of the Touring.

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    danman_s is offline Cadillac Owners Member
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Why is the tune needed? Is it just for the CEL? For those of us that want to preserve our warranties, we should be able to live with just headers + stock/catback exhaust and leave the ECU as is.

    I've done this on my 2009 Silverado and my 2003 Z06. Both used Dynatech long tube headers with a GHL catback on the vette and Corsa Touring on the Silverado. They were both throwing CEL's but I simply cleared them on the Vette with the built in diagnostic mode and flat out ignored it on my truck most of the time. I realize that running with no tune will not maximize gains, but if someone is looking for a slight improvement in breathing and power, the headers themselves will not cause any issues with the warranty. In the case of the truck, it does cause issues with the remote start as the truck will not start if it has a CEL but this only caused a problem in the winter. I drove the truck for nearly a year like that before I had it tuned.

    My Chevy dealership had no issues with my Silverado warranty and would even clear the CEL when I would bring it in for service and simply write in the service summary that the truck had a CEL due to the headers.

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    MikeJCx9 is offline Cadillac Owners Member
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    Re: Kooks Headers and Corsa Sport Mufflers...

    I'm bringing this back from the dead....I've been trying to find out a definite answer myself. Keep seeing/hearing mixed responses. I'm curious as to what route I should go with the exhaust sound...either Kooks headers & X-Pipe to Stock Mufflers or just a Corsa Axleback Sport. I know that with the Corsas the ECU will not have to be tuned or touched whatsoever, but what about the Kooks headers option?! My dealer is cool, but he told me I could do whatever I want as long as I don't mess with the ECU in any way, shape or form. I like how they both sound, but I like the Kooks setup a TAD bit more...but if it can't be done then no biggie. Thanks in advance fellas!

  12. #11
    thebigjimsho's Avatar
    thebigjimsho is online now Cadillac Owners 10000+ Posts
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    I'd find another dealer. My dealer had no issues with either of my Vs being tuned. But you'll need a tune for headers. But I think Kooks to stock muffs is best...

  13. #12
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    Re: Kooks Headers and Corsa Sport Mufflers...

    I had kooks to Touring. I added supplemental resonators and it was PERFECT. Quiet as can be on cruise, hit the throttle and scare everyone around you. I LOVED it. Zero drone, unlike the B&B that preceded it.

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    spearfish25 is offline Cadillac Owners Enthusiast
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    Damn you, Tune. Every mod I want requires your presence.

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    Re: Kooks Headers and Corsa Sport Mufflers...

    Just a heads-up, all Kooks long tube systems are now available with 'Green Cats'. The new cats are more expensive, but are guaranteed not to throw any check engine lights and don't require a tune. Feel free to call us if you have any questions, 443-730-9428

  16. #15
    bbradyc5 is offline Cadillac Owners Member
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    Re: Kooks Headers and Corsa Sport Mufflers...

    Quote Originally Posted by Rule12b View Post
    I had kooks to Touring. I added supplemental resonators and it was PERFECT. Quiet as can be on cruise, hit the throttle and scare everyone around you. I LOVED it. Zero drone, unlike the B&B that preceded it.
    Did you add the resonators to eliminate raspiness, quiet system down overall or both? What resonators did you add and where did you add them in line?

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