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Modified my exhaust but unsure if its safe???

This is a discussion on Modified my exhaust but unsure if its safe??? within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by BREAKxNECKxSPEED Damn-I didnt know I was bothered about anything-thanks for letting me know I was bothered. And ...

  1. #61
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    Damn-I didnt know I was bothered about anything-thanks for letting me know I was bothered. And your dyno sheet proved zero as far as I can see. If you have a dyno sheet comparing a LM muffler and a Borla xr1 with the exact same mods(not a ory in one and not the other etc.) then I would say hey-you are right-I was wrong- but thats not the case is it? The funny thing is-even if you were right and I was wrong so what??? who really gives a fk?
    You guys are so worried about being right and proving everyone wrong its hillarious-hell on another thread I had NHRA trying to give me shit because I said I prefer Borla-like I am not allowed to have an opinion. I find this all really entertaining.
    you said borla was the best or whatever and i called you on it for proof, which you had none.
    thats why i gave you shit.

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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    .

    ***and you say they are too similar is why you cant get proof? Ok if you say so. Looking inside the Borla it has several baffles where the LM has NONE. Thats why the LM is 4" round and the Borla is 5" round.
    whats the size of the tips after both mufflers.
    if both tips are 3 inch, it doesnt matter what size the muffler is simply because its only going to flow what the pipes allow it to.
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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    I plainly said the Borla didnt decrease torque -the LM resonator did.
    proof of that please.

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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    The Borla has baffles inside it and is more constrictive then the LM resonator-do the same test with a LM resonator which is a straight thru 4" pipe and get back to me. Your dyno doesnt prove anything-I plainly said the Borla didnt decrease torque -the LM resonator did.
    Good point.

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    Quote Originally Posted by nhraformula View Post
    you said borla was the best or whatever and i called you on it for proof, which you had none.
    thats why i gave you shit.
    I said I liked the Borla the best. I happen to like the way it sounds-deep/low. It was my opinion because the thread starter wanted peoples opinions. Thats why alot of people in the thread, myself included, laughed at you. I wasnt aware I needed proof for an opinion.
    Last edited by LETHALxLS1; 08-28-2007 at 12:38 AM.

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    Quote Originally Posted by nhraformula View Post
    whats the size of the tips after both mufflers.
    if both tips are 3 inch, it doesnt matter what size the muffler is simply because its only going to flow what the pipes allow it to.
    OK-so if I put 3 inch tips on a stock exhaust its going to flow the same as a LM exhaust or a Magnaflow exhaust? alrighty then.

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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    OK-so if I put 3 inch tips on a stock exhaust its going to flow the same as a LM exhaust or a Magnaflow exhaust? alrighty then.
    no, not on a stock muffler, but it will flow better with bigger pipes

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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    OK-so if I put 3 inch tips on a stock exhaust its going to flow the same as a LM exhaust or a Magnaflow exhaust? alrighty then.
    I think what he was trying to say is that the large diameter of the muffler wouldn't matter in the case that the pipe going to the tips was a smaller diameter....the pipe/tailpipe would still be the limiting factor.

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    Borla claims that their mufflers do not restrict flow. They design the straight through path so that it absorbes sound.

    Here is a breif write from Borla:

    Reflective technology involves splitting the flow path of the exhaust gases within the muffler and using wave-cancellation techniques to create a pressure drop within the muffler. That reduces sound pressure and, therefore, the noise level at the muffler’s exit. If you look at a cutaway of a reflective-type muffler, you’ll find a series of baffles and reflectors. That’s the maze the exhaust winds around to set up the wave reflection.
    The borla muffler is straight through. All that it does is split up the exhaust that is going staight through! It never changes direction.

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    Quote Originally Posted by BREAKxNECKxSPEED View Post
    The Borla has baffles inside it and is more constrictive then the LM resonator-do the same test with a LM resonator which is a straight thru 4" pipe and get back to me. Your dyno doesnt prove anything-I plainly said the Borla didnt decrease torque -the LM resonator did.

    You rest your case huh? hahahahaha get a life dude.
    How does a muffler constrict? Don't you mean restrict?

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    The Borla muffler is a glorified glasspack!

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    Oh wait, here's more from Borla!

    Borla uses the absorption principle for its mufflers but in a much more efficient design that doesn’t interrupt exhaust gas flow. Instead of louvers, Borla uses a tube perforated with small holes, which is surrounded with a stainless-steel wool packing material. Because nothing is hanging down into the flow path, the engine doesn’t even notice the perforations, but these holes allow the packing material to absorb sound without interrupting the exhaust flow.

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    Quote Originally Posted by gspfunk View Post
    I think what he was trying to say is that the large diameter of the muffler wouldn't matter in the case that the pipe going to the tips was a smaller diameter....the pipe/tailpipe would still be the limiting factor.
    yeah, basicly thats what i was saying.
    the tail pipes by design can be a bottleneck.
    just because a muffler can flow 1000 cfm, doesnt mean the pipes can.

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    Im sorry but this is kinda like a never ending topic without actual proof by comparison.

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    Quote Originally Posted by Vertibird54 View Post
    Im sorry but this is kinda like a never ending topic without actual proof by comparison.
    those dyno graphs showed some proof.

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    Quote Originally Posted by nhraformula View Post
    those dyno graphs showed some proof.
    Yea but it isn't comparing the LM and the Borla. Some guy on tech did that a while back and the difference between the 2 mufflers was marginal.

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    Quote Originally Posted by Vertibird54 View Post
    Yea but it isn't comparing the LM and the Borla. Some guy on tech did that a while back and the difference between the 2 mufflers was marginal.
    and i agree it would be marginal.
    someone makes it sound like it would be alot of difference.

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    Quote Originally Posted by nhraformula View Post
    and i agree it would be marginal.
    someone makes it sound like it would be alot of difference.
    Personally, I'd rather spend the extra money for a better sounding muffler with roughly the same performance. Just my .02

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