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Exhaust mod

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Old 04-05-2005, 03:21 AM
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Default Exhaust mod

Anybody ever just chop off the exhaust just forward of the muffler then run straight pipes to the rear valance? I know it sounds like a 'ghetto midnight auto' job but I have seen this and heard the results. For about $150 I was impressed by the sound, not too loud but definately not stock, and the look was very clean.
Old 04-05-2005, 04:09 AM
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Default For a $50,000 car?

I'm against it but I'm over 50 and enjoy driving a sleeper car that doesn't look or sound fast. For $150 you can try it out and if it doesn't work you can just put the original mufflers back on. I suggest slip on mounts with clamps instead of welding.
Old 04-05-2005, 04:21 AM
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Default Re: Maybe $50k for U. $24k for me.

The modded car has an MTM chip and other various items done to it. This guy has access to vast resources so it isn't a money thing....... Just the reality of a great sound for $150 instead of $1200+
Old 04-05-2005, 04:30 AM
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Wrong forum, you want the Chevy Nova board.
Old 04-05-2005, 04:38 AM
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Default It isn't that crazy of an idea. The turbos act as a muffler of sorts. They quiet it down to the

point that losing the rear mufflers wouldn't make it sound like a top fuel dragster. Obviously the work could be completed with nice tubing and tips of his choice. No necessarily 100% ghetto. Perhaps somewhat ghetto though - I would have to hear it for myself.
Old 04-05-2005, 05:09 AM
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Default The sound is very nice and still muted, but not stock.

Remember there are still turbos, pre-cats, cats and a resonator still quieting the exhaust.

I know mostly BMW exhaust notes and this is far quieter than all of what is available over there. BB, Borla, Magnaflow etc.....

The install is very clean. He used a VW/Audi exhaust sleeve/clamp to join the existing output to the straight pipes and has a very nice set of exhaust tips.

It is totally reversible. One would use the sleeve joint to re-attach the mufflers.

It is easy to sit back and take pot shots at this mod, especially if you have dumped $2k on a catback system.

I had my doubts to but after seeing and hearing I am going to do the same to my car. Call it a Nova, rice, whatever. From the valance panel you will not know the difference and your ear will be amazed.
Old 04-05-2005, 05:10 AM
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whatever, I C U paid the $2K for your MTM cat back.........
Old 04-05-2005, 05:15 AM
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Default Hmmm....codes may result..

Running straight pipes.. will lessen the back pressure.. and perhaps allow the turbos to spool up a bit faster.. BUT this may also be too little back pressure. Some back pressure is needed.. only trial and error will proove it out.
Old 04-05-2005, 05:51 AM
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Default He'd still have the cats, which add more back pressure than the mufflers I think.

So less than 50% loss in pressure...
Old 04-05-2005, 06:30 AM
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Default No fault codes have been triggered.

It has been running in this configuration for a couple of weeks. No fault lights. I must add the MTM chip gives this car an impressive amount of power.


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