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Y-Pipe Question

This is a discussion on Y-Pipe Question within the External Engine forums, part of the LSx Technical Help Section category; I was perusing Ebay for Magnaflow exhaust systems and I came across two that fit my car. One with dual ...

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    Junior Member Ironwolf's Avatar
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    Y-Pipe Question

    I was perusing Ebay for Magnaflow exhaust systems and I came across two that fit my car. One with dual Quad tips and one with dual tips and no y-pipes. Now this is probably a noob question...but is a y-pipe required for installation of this exhaust system on my car? I'd like to get the one with no y-pipe because it will save me about $300 bucks, but I don't want to waste my time and maybe even more money if a y-pipe is required.

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    Senior Member JaycenK's Avatar
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    Part numbers or links? cant see it can't tellya

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    Junior Member Ironwolf's Avatar
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    The Magnaflow 16723 (quad tips) will fit your stock Y-pipe. This thread details the install of that system on our car: Catback install with pics and vid I presume that the same holds true for their other catback.


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    Junior Member Ironwolf's Avatar
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    My question though is if the dual tip system that doesn't come with a y-pipe will fit.

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    None of the catbacks include a Y-pipe. They are generally designed to interface with both stock and aftermarket Y-pipes. I recently changed out the stock Y to a Kooks catted Y. No issues.

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    Junior Member Ironwolf's Avatar
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    Ah ok. That makes sense. What are the benefits of an aftermarket Y-pipe?

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    Quote Originally Posted by Ironwolf View Post
    Ah ok. That makes sense. What are the benefits of an aftermarket Y-pipe?
    Take a look at the driver side of your factory Y. You'll see very quickly what the issue is. An engine is simply one big air pump. The less resistance on the output side, the more efficient the pump.

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    Senior Member JaycenK's Avatar
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    Quote Originally Posted by Ironwolf View Post
    I was perusing Ebay for Magnaflow exhaust systems and I came across two that fit my car. One with dual Quad tips and one with dual tips and no y-pipes. Now this is probably a noob question...but is a y-pipe required for installation of this exhaust system on my car? I'd like to get the one with no y-pipe because it will save me about $300 bucks, but I don't want to waste my time and maybe even more money if a y-pipe is required.
    They will both bolt up. Neither has a Y so it really does not make since why they even mention that. Like the guys said abouve you don't need the Y to install and the only differance between the two systems are the hardware quality and the ability to use different tips. The cheaper system uses a welded in round tip and regular muffler claps that tend to kink pipe V's the band style clamps in the more expensive one.

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    Junior Member Ironwolf's Avatar
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    Thanks for the help guys. This makes my choice a lot easier.


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