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10-10-2009, 01:37 PM
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#1
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Join Date: Aug 2009
Posts: 31
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Slp loudmouth question
Hi, I just had my headers and y pipe installed and have a loudmouth 1 on it already. The thing is way way way too loud. would the lm2 help or can i put a universal magnaflow or borla on it?
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10-10-2009, 01:45 PM
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#2
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Join Date: Dec 2008
Location: NNJ
Posts: 1,489
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my magnaflow is too quiet (w/ stock manifolds an ypipe) so i would say it'd help tone it down..creeper's runnin LT with magnaflow and its tolerable
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1997 Camaro Z28 - 355 LT1, T56, CC503, LTs, ORY, Bald Eagle-back exhaust, !emissions, Lingenfelter CAI, EWP, !CAGS, BMR LCAs, UMI PHB, Koni Str.t/Koni SA, C5 Z06 front / LS1 F-body rear brake swap, factory hurst with short stick 
2014 2LT Cruze 2.0 Turbo Diesel
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10-10-2009, 02:21 PM
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#3
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11 Second Club
Join Date: Feb 2008
Location: Edison, NJ
Posts: 4,620
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Pretty much anything other then a magnaflow will be loud with LTs and an ORY.
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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10-10-2009, 02:28 PM
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#4
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Join Date: Aug 2009
Posts: 31
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anyone have any opinions on the borlamouth? compared to a lm2 how is the sound and noise? also is the magnamouth good or bad?
Last edited by noolah123; 10-10-2009 at 02:28 PM.
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10-10-2009, 04:14 PM
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#5
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Join Date: May 2007
Location: south river
Posts: 1,289
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lm2 will be a lil better but still loud with an ory try the magnaflow universal one
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-Pete-
BLK 07 CTS M6 2.8
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10-10-2009, 05:00 PM
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#6
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10 Second Club; Has fan club
Join Date: Dec 2005
Location: Delmont nj
Posts: 4,369
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my friend did the borlamouth, its still loud, just a deeper tone lol. i had a few different setups. the magnaflow catback was nice, also had 10 series flowmaster that was pretty good too
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01' Z06 62k miles. Vararam, Longtubes, off road xpipe, tuned by me. Times TBA
2001 Corvette, Bolt ons , tuned 10.75@124.56 mph 1.38 60' Sold
1997 Saturn Sc1 5spd DOHC swapped
Bolt ons, decked head, stock intake cam on exhaust side, lotsa weight redux
13.22@102.32 mph 1.93 60'
12's on moda? One day
Last edited by 98tadriver; 10-10-2009 at 05:03 PM.
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10-10-2009, 07:42 PM
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#7
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Join Date: Dec 2004
Location: Browns Mills NJ/ Rotondo West FL
Posts: 3,054
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I assume your not running any cats...I have no grips w/ the system but i could imagine without them...The lm2 is loud also, but not as so that might be an option.
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AI HCR 241's , Lunati 223/236 .615/.626 114+2 , Full Exhaust , Ported Fast 92 , Ported LS2 TB , Veraram , 85mm MAF , Circle D 4000 , 3.42's , GTP 36# , CSP Dyno tune. More on the way
420 HP/367 TQ on a Unlocked Converter & still climbing.
Last edited by MonmouthCtyAntz; 10-10-2009 at 07:42 PM.
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10-10-2009, 08:25 PM
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#8
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Join Date: May 2009
Location: Highland Mills, NY
Posts: 1,915
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im putting the lm1's on tonight with my LT's
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2000 Camaro SS 610rwhp/570rwtq LS2 440, 12 bolt 3.73, tranzilla t56
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10-10-2009, 08:57 PM
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#9
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Join Date: Aug 2009
Posts: 31
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the main problem is the raspyness during deceleration. it is also overly loud. i am leaning toward magnaflow to help lower the noise a bit.
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10-10-2009, 09:27 PM
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#10
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Join Date: Dec 2004
Location: manchester, NJ
Posts: 1,775
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i had lm2 on my car for a while and it was pretty loud... i wouldnt go that route if you think the lm1 is too loud...
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97 Firebird Formula - 383LT1
15 Subaru WRX - 2.0L-turbo
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10-11-2009, 09:14 AM
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#11
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,368
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Quote:
Originally Posted by noolah123
anyone have any opinions on the borlamouth? compared to a lm2 how is the sound and noise? also is the magnamouth good or bad?
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kirkevil has a borlamouth, should be a link in his sig.
magnaflow will quiet it up.
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10-11-2009, 10:31 AM
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#12
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Join Date: May 2009
Location: Highland Mills, NY
Posts: 1,915
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magnaflow IMO is to quiet for my taste. The LM1s just from hearing them on last night sound awesome. They have a loud drone but they are what i wanted for a sound.
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2000 Camaro SS 610rwhp/570rwtq LS2 440, 12 bolt 3.73, tranzilla t56
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10-11-2009, 10:33 AM
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#13
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,216
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I have the Random Tech cat-back with longtubes and dual cats. It's very mellow at idle and highway cruising. It gets loud at WOT over 3500 rpm's as it's a straight through muffler. Anything other than the LM1 or LM2 should work pretty well. The GMMG will be too loud as well.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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10-11-2009, 03:16 PM
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#14
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Mongo the Meet Coordinator
Join Date: May 2008
Posts: 16,938
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!loudmouth, get real catback and cutout. Win.
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Quote:
Originally Posted by KirkEvil
repo bigals turd gen and part it out to a loving home
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10-11-2009, 03:47 PM
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#15
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Join Date: Apr 2008
Location: Morris County, NJ
Posts: 538
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LM is waaaaaaay too loud in a bad way. that raspiness sounds as bad as those rice rockets. you want to add a muffler thats on the quieter side to offset that, so magnaflow is the way to go..any universal should do. if you go with one thats midrange/loud side..its not gonna help much..still have that raspiness and terrible LM drone.
friend had an LM on his 01 camaro...sounded like junk.. added an average-joe stock muffler to the system (believe it was Marymount) and it made the system sound great..
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355 & Supercharged... 
Another trip inside the acid bath..no salvation and the grave is coming fast..
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10-14-2009, 08:08 AM
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#16
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Join Date: Sep 2009
Location: eastampton
Posts: 103
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mine was extremely loud with the loud mouth but once i put the highflow cats in it toned it down quite a bit.
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 bbk intake,heads,cam,injectors,throttlebody,longtubes, highflowcats,
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