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  1. My sts

  2. 2008-2013 CTS Performance Mods
    Hello everyone! I have myself a 2010 CTS 3.0 Performance model. I normally use the manual mode and get quit a few burbles and not as many pops from my exhaust. I was wondering what could I do besides a tune to get my burgles more aggressive and louder. I don’t necessarily have a aftermarket...
  3. 2008-2013 CTS General Discussion
    Im looking to replace my stock muffler with an exhaust tip.. but can’t find the diameter of the exhaust anywhere. I’d measure it but knowing my luck it wouldn’t be anywhere close, does anyone know the size or have a suggestion for the tip?
  4. ATS & ATS-V Parts For Sale or Wanted
    Hello everyone, I have a Borla 11844 Axle-Back Exhaust for a 2013-2015 ATS for sale. The exhaust is meant for a 2.0T RWD, but I can confirm they fit on my 3.6 AWD with no issue at all. Not sure why Borla says they only fit on RWD models because there is no difference in the rear section of the...
  5. SRX Parts For Sale or Wanted
    This is probably a longshot but does anyone have a set of Corsa mufflers or a Volant air intake system for the V8 SRX that they'd like to sell? Both of these items have unfortunately been discontinued.
  6. Seville and Eldorado Forum
    I want to add a dual exhaust to my 1978 Eldorado (425”) Yay 😀 or Nay ? what should I use if so?
  7. ElDorado 1975 the ignition key cylinder went "crazy"

    Hola. Saludos desde España. Veamos si pueden ayudarme con un "problema" fuerte que tuve con mi ElDorado de 1975. Espero que me entiendan bien, ya que mi inglés no es muy bueno y tengo que utilizar un traductor. Gracias y disculpas de antemano Hace unos días fui a arrancar el motor y el cilindro...
  8. ATS General Discussion Forum
    Hello, first post on this forum. I want to upgrade my current single exhaust to a dual on my ‘14 ats 2.5l, however GM discontinued the upgrade kit. Anyone know where I can find a dual exhaust upgrade or an alternative way to replicate one?
  9. CTS, CTS VSport, CTS-V Parts For Sale or Wanted
    I am looking for the stock rear mufflers off of a 04-07 CTS-V. Ideally they would just be cut off the main pipes and shipped to me. I am in Oregon and am willing to drive within the state (would also consider southern Washington) if you happen to be here too. Previous owner did a "muffler...
  10. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    Need more loud out of my 2002 deville already did a resonator delete still have the cat and the stock mufflers I’m looking at flowmaster 44s I may get rid of the cat if it’s not loud enough after that even. But as far as I know the flowmasters are a 2.25 inlet and outlet. will these clamp to...
  11. Escalade and ESV Forum - 2015-2020
    Hey guys just wanted to show you what I did to the esky yesterday: Escalade w Flomaster super 40’s click link above
  12. ATS General Discussion Forum
    I wanted to start this thread so that I could hear the exhaust note of your 2.0t. I never see other LTGs on the road when I drive and when I do it’s always stock. When I got My ATS coupe, that big suit case muffler just felt like it took the life out of my car. So I bought an Intake and later...
  13. 2001 Cadillac Deville Base Modified

    2001 Cadi4.6Ld air Deville Base 4Door Sedan. 32 Valve 4.6L Northstar V8. 103,500 miles. Stock 275hp. Current Dyno before mods - Avg 268hp. Current Dyno after Mods - Avg 326hp Ram cold air intake. Hi flow cats. Duel single chamber straight through performance mufflers. Spitfire performance tuning...
  14. FWD DeVille 1985-2005, Fleetwood, and 60 Special
    No question, not asking advice, just wanted to post this jolly video I took after finally getting both the exhaust and tank out to remedy a dead fuel pump! bonus trophy shot of the exhaust
  15. ATS Performance Mods Forum
    I put in an aftermarket air intake and exhaust system onto my 2016 ATS and now I’m getting about 5mpg anytime I’m hitting the gas to accelerate. I’m not putting my foot down or anything like that and the turbo is producing around 5-8 psi of boost. I’m wondering if there might be an issue with...
  16. ATS Performance Mods Forum
    I was curious to see if anyone had installed the exhaust upgraded kit, dual exhaust (22798566) from Cadillac. I was thinking about getting it installed. Has anyone ever had it installed from the factory or installed later on?
  17. 2008-2013 CTS Performance Mods
    Sounds amazing, very low note for a V6. Drones a little on the highway but not badly. I love the pops and crackles when you let off. I just cut the mufflers off and welded in pipes leaving the stock exhaust tips in place, it was really easy because the tips have hangers right behind them...
  18. ATS-V Series Forum - 2016-2019
    Expecting to be flamed for this, but the exhaust drone from my stock ATS-V 8A at low speeds is getting on my nerves and I'd like to some silencers or additional resonators to quiet it down. Is it safe to assume this will void the factory warranty? I've considered less invasive options like...
  19. CTS, CTS VSport, CTS-V Parts For Sale or Wanted
    Hi All, I have been using the OTP cutouts for a while, but I am getting tired of the drone and vibration from it exiting under the car. I would like to find a good deal on Stainless Works header back system. Hoping for a S tube mufflers, but open to chambered as well. I am located in San...
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