every car i've heard these on sound to me... too loud, usually sound like an old pick-up truck.
don't mean to be a negative-nancy type, but i've heard plenty of sounding 94-95's w/ nice mac/flowmaster/borla setups.
I've got your farm truck for you right here.
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I never have been able to figure that reference out. Near as I can figure, some tool came up with that when SLP first came out and now everybody that has never heard an SLP system in person just parrots what they read on the intraweb. I've got SLP 1's on both my LX and my wife's Cobra. We both regularly get compliments on how they sound during stoplight conversations.
I picked up my SLP LM1 from Summit. So they should be the same ones your looking at. Should be a 5 piece system. You can swap out the resonators with an SLP specific muffler if they are too loud for you. I know they offer 3 different "mufflers" for the system.