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Thread: need a quieter exaust
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04-26-2010, 08:28 AM #1
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silver & black- 2000 TA 1979 TA
need a quieter exaust
Hey, I've been reading a lot of posts on exaust systems. And although very infomativ, my setup is a little different and i hope u guys could help. i have a 408 stroker ls based motor. Pace Setter ceramic 1 3/4 in long tube headers. 3" X-pipe with very loud DYNOMAX bullet mufflers. very nice flow, with a great aggresive sound. BUT, i have annoyed the neighborhood long enough with very loud dry cranks and also loud at idle. i hope to go with a MORE QUIET CLEAN DEEP SOUND.with the addition of elec cutouts for when i want to make a scene. i hope to keep my headers and just want a nice clean sound that will not restrict my exaust yet keep the idle sound at a minimum. any feedback will be helpful. THANKS
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04-26-2010, 08:43 AM #2
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04 Cobra 'vert - M6 mysti- 02 WS6 coupe - A4 red
I don't have personal experience, but I believe Corsa catbacks are supposed to be good flowing with a nice lower decibel sound...
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04-26-2010, 09:02 AM #3
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- pembroke, nc
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silver & black- 2000 TA 1979 TA
personal or similar experiences would be a plus with helping my purchase. but definately worth a look. thanks.
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04-26-2010, 10:22 AM #4
Quiet is going to be more restrictive, but that's where the dual cut-outs come into play!
Go with dual electric cut-outs after the headers, then into a Magnaflow catback. If that still to loud add a Magnaflow bullet muffler in the I-pipe.Last edited by Blue28; 04-26-2010 at 10:26 AM.
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04-26-2010, 12:17 PM #5
with a magnaflow catback you should be fine. its probably the quietest out there. talk to mr lous about it, he swears by magnaflow
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04-26-2010, 01:14 PM #6
you all know newer corvettes have the dual type muffers... quiet tii 3,000 rpm's ,then they open up, all 4 tips,factory stock... you can pull the fuse and will be open all the time, and pick up 6 or so, more horsepower.. straight through.,, do get a little drone in 5th/6th gears, i dont mind.. they sell a remote to turn them off and on,-fun for the neighbors !! rkvette
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04-26-2010, 01:25 PM #7
i have a borla cat back and it is way too loud too. Every time i take the car out it doesnt take long for the cops to roll by the house. lol
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04-26-2010, 02:20 PM #8
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Custom Swirly Black- 2001 WS6 M6
CAT's removed I assume?
Adding those back into it will keep the nasty rasp down, but also restrict the flow. But with the cutouts I imagine flow restriction isn't a concern.
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04-26-2010, 04:24 PM #9
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- pembroke, nc
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silver & black- 2000 TA 1979 TA
yea, i also thought of just adding the CATs back. but im not sure how it will sound. kinda still want 2 keep a deep smooth tone. would that mellow it down a little and keep the sound of performance. or will it just "muffle" it all out. i understand I'm looking at a performance loss. how will the CATs compare to just replacing the muffler. pro/con if any. or would it even be practical other than to pass emissions.
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04-26-2010, 04:42 PM #10
Why not keep the duals and just put magnaflow mufflers in place of the bullet mufflers? My hooker catback with lt's and tsp oryp is still verry quiet cruising, almost too quiet...
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04-26-2010, 04:50 PM #11
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04-26-2010, 06:14 PM #12
if you decide to take the x-pipe off let me know, im interested
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04-26-2010, 11:57 PM #13
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silver & black- 2000 TA 1979 TA
i doubt i will change the whole exaust. was hoping to just replace the mufflers. and i had magnaflo in mind and it seemsthat is what everyone says sounds good without the raspy sound of bullets. hard to chose without hearing it. but I'm hoping they aare the deep smooth tone I'm looking for. are there many types of magnaflo mufflers to chose from? and if so. what type if i only want to order the mufflers and not the whole exaust system.what are the difference in sound of each if so.
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04-27-2010, 06:53 AM #14
I have 3in exhaust from the manifold back, no cats, electric cut off behind the ORY and a magnaflow muffler, my car is extremely quiet until i give it gas.. when im cruising you can barely hear the exhaust but when i nail it everyone can hear it
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04-27-2010, 07:01 AM #15
^^^ same with hooker muffler, and its maybe a lil louder than the magnaflows because of the chamber of the hooker. My other car had mack mids and their oryp with a flowmaster crossflow muff in stock location. I changed it to a dynomax direct fit muffler and the hooker I have now seems to be somewhere between them.
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04-27-2010, 07:27 AM #16
im thinking about trying something like this, little too much rasp with the magnaflow i have, i would probably weld this into the cat-back..http://www.summitracing.com/parts/MPE-59959/
2000 Z28 M6 125,XXX: SLP lid, K&N, 10.4mm Taylor plug wires, Frost Tune, P&P TB, NGK Iridium plugs, Magnaflow Cat back, BMR SFC's and tower brace, TSP LT's and ORY, LS6 intake, MAC Girdle, UMI LCA's and Panhard, LS7 Clutch Kit, so far..
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04-27-2010, 07:37 AM #17
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04-27-2010, 08:18 AM #18
My one friend has a 408 GTO with magnaflow system on it. Dosent sound bad at all but im not a big magnaflow fan. Mr. lous is the man to talk to about that. Good luck man!!
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04-27-2010, 10:05 AM #19
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04-27-2010, 11:03 AM #20
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