Originally Posted by 1993 SLE
i agree that the 80 would be your best option...i do know that the 40 is not offered in a single in Dual out configuration....i do not know if the 50 is or not....you must keep this in mind when selecting a muffler...also it should be noted that the muffler is a change in sound only...it does not add any performance
you can get a magnaflow cat and i believe they are highflow also.... off ebay for i believe $55 shipped (correct me if im wrong)
you already have a STOCK resonator...leave that one on and forget the glasspack
To add to this, the only way to gain HP on the exhaust side is if the new exhaust is designed with flow in mind. When I had a local shop do up my Malibu Maxx, they went from the manifolds on back...completely new, and bigger pipe was used (though not too big as that would kill all my lowend torque), along with an 80 FM, and no resonator. I did notice a drop in lowend torque, but midrange pull is phenominal. Anyways, the Bonneville exhaust is pretty well designed from the start, and unless your cat is clogged, there is no performance to be had if you do a changeout. When the time comes for me to do my exhaust, I will be replacing everything just because it prior to me owning it it was, shall we say, NOT cared for at all. I won't be expecting any power gains unless the cat is clogged up when I do this.
Welcome, downwardly mobile yuppies, to the dawn of the Age of Nefarious.
1993 SSEi - FrankenJinx - dead and gone.
1994 SSE (136K strong) - 180* t-stat,HD alternator, most unequipped SSE on the club, XM radio, Kenwood CD/MP3.
2006 Chevy Malibu Maxx LTZ - Custom 2.25" manifold-back exhaust w/FM-80. Probably the only Maxx with this system.