guys with gmmg come in..
#3
Tech Resident
gmmg is basically a tuffed up, ribbed straight pipe. it'll basically be louder than a muffler but not as loud as straightpipe. so yea, it's pretty loud in comparison to say, magnaflow, corsa, borla, hooker...the only exhaust louder is SLP LM1, but it'll sound a lot better. SLP LM1 in my opinion is one of the worst sounding, ugliest exhaust setups out there. i'd go as far to say an LS1 with a LM1 is one of the worst sounding V8's out there, sorry guys, no offense. like, it doesn't sound a whole lot better than my 6'er. gmmg is your best loud/sound combination with the exception of true duals.
#4
Originally Posted by mike1989
i did a search but didnt find much. i want to know how loud gmmg actually is compared to other cat backs.
thanks in advance.
thanks in advance.
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#8
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Join Date: May 2005
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gmmg owner here. best cat back for ls1 IMO. add longtubes and it sounds like **** if you go with off road y pipe. gets way too raspy and sounds like a rednecks truck runnin down the road. i hear it sounds good with catted ory tho( the route im going sooooon)
#10
my GMMG just came in the mail yesterday i hope it sounds as good as it looks. Hope it sounds good still with only stock cats and Y. going from a slp dual dual (too quite for me)
#11
Launching!
Join Date: Mar 2004
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Owner here. Kooks pluas a catted-Y in front of it and it sounds wicked. Loud and Nasty. No drone, not bad under normal driving. Step on it and it roars....
#14
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get tsp true duals if you want to **** them off, my friend has them on his 96 1le with lt's,ypipe,and mail order tune, with msd ignition. the thing sounds sick i love it i know when hes coming over my house, you can hear him few blocks lol.
#16
TECH Addict
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I love the way my GMMG sounds through longtubes and cats. It's a little on the loud side for me, at idle and WOT. It just makes me a little nervous when I pull up alongside a cop. It does sound great though, with little to no drone at all. It's not too loud in the cabin, but from the back it's LOUD!!