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Old 10-31-2013, 09:54 AM   #15
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I can't wait till long tube headers and 3" back

Sent from the road.
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Old 10-31-2013, 10:22 AM   #16
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I'm assuming that such mod will most definitely void the warranty huh?
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Old 10-31-2013, 10:30 AM   #17
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Best money I ever spent. Mine is an LS3 so I don't get a lot of drone, but with the L99 (or whatever the auto version is) you may experience some. I for one think it is much better than spending close to a grand for the GM NPP system. (although I'm sure the delete is not nearly as classy and refined.)
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Old 10-31-2013, 10:31 AM   #18
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Originally Posted by SabotAndHeat View Post
P.S. It's exactly why some Corvettes have a dual mode exhaust. At more than 25% throttle and higher than 3500 RPM's the exhaust bypass mode opens...allowing for the Corvette to have the best of both worlds.
I've heard some Camaros have this as well, lol.
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Old 10-31-2013, 10:39 AM   #19
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I'm assuming that such mod will most definitely void the warranty huh?
I don't believe so. Even a header install with high flow cats and cat back exhaust doesn't effect the power train warranty unless you through in a tune.....just my understanding however.
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Old 10-31-2013, 10:42 AM   #20
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Muffler delete is the only mod I have so far. Not loud at all, acutally kinda quiet. No change in performance, I did start averaging .1mpg better fuel economy...
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Old 10-31-2013, 10:46 AM   #21
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I've heard some Camaros have this as well, lol.
ZL1? Sweet, didnt know.

Does it open at take off and close at high speed?

-or-

Does it stay closed at take off and open at high speed? (my vote)



Apparently, Chevrolet gets it.
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Old 10-31-2013, 11:52 AM   #22
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Muffler delete from magnaflow with solo hi flow...no drone. http://youtu.be/U6MB4yUwVKA
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Old 10-31-2013, 12:05 PM   #23
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It's an Inexpensive way to achieve a nice V8 rumble and lose the factory muffler weight.
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Old 10-31-2013, 12:20 PM   #24
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It's not nearly loud enough for that.
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Old 10-31-2013, 12:36 PM   #25
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Dumb question dept: Does the muffler delete have any effect at the DEQ for smog check when renewing license plates?
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Old 10-31-2013, 12:36 PM   #26
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Quote:
Originally Posted by SabotAndHeat View Post
ZL1? Sweet, didnt know.

Does it open at take off and close at high speed?

-or-

Does it stay closed at take off and open at high speed? (my vote)



Apparently, Chevrolet gets it.
Works like the vette. Not sure of actual throttle % and rpm, though. Most of us pulled the fuse to it so it stays open all the time, though. Or you can buy a Mild to Wild switch w/remote so you can control it yourself, or program it to a home link switch.
BTW, NPP exhaust is an option on SS and some, if not all V6 models.
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Old 10-31-2013, 12:50 PM   #27
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Quote:
Originally Posted by rontammy0 View Post
Muffler delete from magnaflow with solo hi flow...no drone. http://youtu.be/U6MB4yUwVKA
Gee... the video was just getting to the good part, then it ended.
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Old 10-31-2013, 12:54 PM   #28
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I cut mine off and put on axle back from Solo with J pipes. Love the sound.
This is what I'm leaning towards. I hear the J pipes practically eliminate drone.
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