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Cadillac ATS Performance Forum Discussion, Magnaflow Cat-Back Exhaust - ATS 2.0T in Cadillac ATS Discussion Forums; Originally Posted by M5eater slip on connectors and butt clamps. Like every other exhaust in the world. u have to ...
  1. #16
    donavo's Avatar
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by M5eater View Post
    slip on connectors and butt clamps. Like every other exhaust in the world.
    u have to cut the stock exhaust even if u buy this system from magnaflow. which is unfortunate. wish GM had made a flange right after the cat.


  2. #17
    M5eater's Avatar
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by donavo View Post
    u have to cut the stock exhaust even if u buy this system from magnaflow. which is unfortunate. wish GM had made a flange right after the cat.
    I've delt with enough sezied studs, nuts and flanges to be thankful all that's required is a 10 minuite hacksaw job.

    In the long-run, if you ever want to go back, a pair of joint clamps will let you put the stock exhaust on without having to re-weld anyway. I just did so with my V.

  3. #18
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    My subie is loud as **** now cat less downpipe into 3 inch exhaust my neighbours windows shake when I
    Fire her up. It was subtle in stock form.

    ----------

    Never mind my external wastegate.

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  5. #19
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    lulz at external wastegate...I know alllll about it.

    You should see my 2JZ RX-7. I have a straight-up open dump-pipe coming right off the 45mm Turbosmart external wastegate. :P

    I think a full 2.5" or even 3" exhaust with high-flow cat and resonator will really give the ATS 2.0T the aggressive exhaust note it needs without being TOO much.

    The Magnaflow mufflers themselves seem to add a good tone for this particular motor, but with ONLY a cat-back, it just doesn't feel/sound like enough of an upgrade for the more hardcore "tuners" in our community, such as myself. :P

  6. #20
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Each to his/her own but I can see little benefit to putting a Magnaflow on a 4 banger, especially with only one muffler! True, you will add a little more muscle sound but who the heck wants a Caddy that sounds like a rice burner..!! Kid stuff! I have had big American V8's most of my life including 3 ZR-1's and now a C6. The C6 runs a Magnaflow cat back, and while it produces a really nice muscle car sound [not at all kid like or cheap hot rod sounding] it does little for increasing performance. When I went with a Magnaflow type on 2 of my ZR-1's I did get increased 1/4 mile trap speeds by about 3 or 4 mph but they did little for the ET's. Magnaflow makes nice products, but why on a Cadillac!

  7. #21
    donavo's Avatar
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    Quote Originally Posted by KXAM View Post
    Each to his/her own but I can see little benefit to putting a Magnaflow on a 4 banger, especially with only one muffler! True, you will add a little more muscle sound but who the heck wants a Caddy that sounds like a rice burner..!! Kid stuff! I have had big American V8's most of my life including 3 ZR-1's and now a C6. The C6 runs a Magnaflow cat back, and while it produces a really nice muscle car sound [not at all kid like or cheap hot rod sounding] it does little for increasing performance. When I went with a Magnaflow type on 2 of my ZR-1's I did get increased 1/4 mile trap speeds by about 3 or 4 mph but they did little for the ET's. Magnaflow makes nice products, but why on a Cadillac!
    Because the stock 2.0 sounds really bad. Not just quiet. I'm cool with quiet. But it's almost embarrassing to Rev that engine I think lol.

  8. #22
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    The only exhaust piece worth any performance improvement on a 4 cylinder turbo would be a downpipe.

    Everything else is just for sound.

  9. #23
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by KXAM View Post
    Each to his/her own but I can see little benefit to putting a Magnaflow on a 4 banger, especially with only one muffler! True, you will add a little more muscle sound but who the heck wants a Caddy that sounds like a rice burner..!! Kid stuff! I have had big American V8's most of my life including 3 ZR-1's and now a C6. The C6 runs a Magnaflow cat back, and while it produces a really nice muscle car sound [not at all kid like or cheap hot rod sounding] it does little for increasing performance. When I went with a Magnaflow type on 2 of my ZR-1's I did get increased 1/4 mile trap speeds by about 3 or 4 mph but they did little for the ET's. Magnaflow makes nice products, but why on a Cadillac!
    3 or 4 mph in the 1/4, I want some of those mufflers. That's quite a bit of gain just for mufflers? I race all the time and have never seen increases like that?

    Kevin

  10. #24
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by Siren05 View Post
    The only exhaust piece worth any performance improvement on a 4 cylinder turbo would be a downpipe.

    Everything else is just for sound.
    A hiflow cat after the downpipe would also help reduce backpressure.

  11. #25
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by mikesul View Post
    A hiflow cat after the downpipe would also help reduce backpressure.
    And more importantly we can add more boost!

  12. #26
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    I think it's kind of cool that it's not overly loud, if you can do a new video with it a bit broken in that would be great! In your opinion, compared to a 3.6L, is it louder or quieter?

    Also, how audible is it in the car?

  13. #27
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Quote Originally Posted by bluhaven View Post
    3 or 4 mph in the 1/4, I want some of those mufflers. That's quite a bit of gain just for mufflers? I race all the time and have never seen increases like that?

    Kevin
    Yes, it was a complete 3" cat back system and the mufflers were Walkers! LT5's needed to get the exhaust out as you cranked the rpm towards 7,000! My best prior was 111-112 after the exhaust it was always 114-115mph.

  14. #28
    mtinaza is offline Cadillac Owners Member
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    Quote Originally Posted by KXAM
    Each to his/her own but I can see little benefit to putting a Magnaflow on a 4 banger, especially with only one muffler! True, you will add a little more muscle sound but who the heck wants a Caddy that sounds like a rice burner..!! Kid stuff! I have had big American V8's most of my life including 3 ZR-1's and now a C6. The C6 runs a Magnaflow cat back, and while it produces a really nice muscle car sound [not at all kid like or cheap hot rod sounding] it does little for increasing performance. When I went with a Magnaflow type on 2 of my ZR-1's I did get increased 1/4 mile trap speeds by about 3 or 4 mph but they did little for the ET's. Magnaflow makes nice products, but why on a Cadillac!
    As with most anything, "because you can", more importantly, because aftermarket anything will help get this car and brand some much needed visibilty.

  15. #29
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    Cadillac has come out with a performance exhaust developed with them by Borla, my parts guy got word from his GM accessory rep.

  16. #30
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    Re: Magnaflow Cat-Back Exhaust - ATS 2.0T

    not gonna lie I couldn't really tell the difference in that youtube video

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