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2008-2013 Cadillac CTS Performance Mods Discussion, Substantially Increase CTS Horsepower? in Cadillac CTS Second Generation Forum - 2008-2013; Originally Posted by thebigjimsho 30-45hp? No. Not a chance. My CTS-V has a Lingenfelter CAI and B&B catback. I then ...
  1. #31
    concorso is offline Cadillac Owners Master
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    Re: Substantially Increase CTS Horsepower?

    Quote Originally Posted by thebigjimsho View Post
    30-45hp? No. Not a chance.

    My CTS-V has a Lingenfelter CAI and B&B catback. I then added a set of B&B headers(without cats) and a StealthV tune. THEN I got a 41hp/39lb increase. And that's on a 400hp V8. A 10% increase for all of that, with 3/4 of that, if not more, just on the headers and the tune.

    A CAI and catback on the 3.6 will get you 10hp...tops...
    Id tend to agree with you, but the Dyno results say otherwise... The 04-07 3.6L sees about 15 whp dyno'd with intake and exhaust.

  2. #32
    concorso is offline Cadillac Owners Master
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    Re: Substantially Increase CTS Horsepower?

    Quote Originally Posted by anonfrank View Post
    Sorry guys, that's the only way to get "substantial" hp.

    And asking GM for a CTS with 400 hp? I think you're thinking of the Pontiac G8 GXP.....around $40k.....around 400 hp.....now that's bang for the buck, and it's a nice car to boot. I didn't buy one myself only because I like having a navi, and the CTS-V's interior is that crucial step above.

    Why have a CTS-V at all if Caddy offers a 400 hp V8 in a CTS?
    Why have a 550i when theres an M5...Why have an S6 when theres an RS6. Why have a Z06 when theres a ZR1...

    Theres a massive difference between the V and the 3.6L DI...Im in awe that you cant see the massive gap between these 2 cars...

  3. #33
    concorso is offline Cadillac Owners Master
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    Re: Substantially Increase CTS Horsepower?

    Quote Originally Posted by z06bigbird View Post
    You might be right on the "legally, GM has to prove..."

    The reality of life is: once a GM service mgr notes in the computer that he/she feels the mod screwed up the part, GM does not have to prove anything. The dealer/GM can then refuse to cover the part and labor under the warranty. Not much that the average consumer can do.

    Best advice, as others have said, is to talk with local GM service mgr prior to making any mods.
    I wasnt clear. What I meant was that its up to GM to make the final decision on if your mod caused the damage. Its not a decision made by the dealership. Theres only 1 person at the dealership you should talk to, and its the GM rep.

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