LT1-LT4 Modifications 1993-97 Gen II Small Block V8

magnaflow cat back or slp cat back

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Old 01-11-2011, 07:34 PM
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Default magnaflow cat back or slp cat back

Jw what you guys thought about the two,also what one will sound better and what one will give me the most power thanks

They will be on a 94 z28 pacesetters lts
Old 01-11-2011, 08:54 PM
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for sound its all about opinion. I like magnaflow, thats my .02. Power wise, its about the same (comparing the same muffler type)
Old 01-11-2011, 09:43 PM
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if your lookin something different I was really happy with my Random Tech cat back on my old LS1 car
Old 01-11-2011, 11:37 PM
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if i could upload my video...i could show you what it sounds like with 3 inch magnaflow cat back and magnaflow high flow cats
Old 01-12-2011, 12:14 AM
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buddy of mine had Magnaflow and it sounded good...nice and quiet at idle and loud and aggressive at WOT...
Old 01-12-2011, 12:20 AM
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Magnaflow is too quiet at idle and cruising speeds IMO! I have LT's, ORY, and Maganflow catback now... Cutout open, it screams at WOT.

I was thinking bout getting a SLP Catback, but I hear it is WAY to loud, although, i love LOUD!!!

IMO, Find a used GMMG!!!! Had one on my Old Bird and I found it to be louder with stock manifolds and cats... Comparing it to my Exhaust now.
Old 01-12-2011, 03:57 AM
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If you plan on going past bolt-on's you may want to stick with something quieter, like magnaflow, which still sounds great. You can always add an electric cutout for when yo want to be obnoxious.

Loudmouth and GMMG may get to be a tad droney and loud for a car that will wind up with heads/cam/more cubes ect. But then again, it's all personal preference.
Old 01-12-2011, 05:06 PM
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slp loudmouth is a great way to turn your car into a piece of garbage.

magnaflow sounds great
other slp exhausts sound great
Old 01-12-2011, 05:25 PM
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i like my magnaflow
Old 01-12-2011, 05:37 PM
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Originally Posted by vtec
slp loudmouth is a great way to turn your car into a piece of garbage.

magnaflow sounds great
other slp exhausts sound great
this is true my bird came with a lm1 and it sounds like crap. At idle its ok and wot is ok but in normal operating range it sounds like a tahoe with straight pipes with shitty 20's. It you know what i mean




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