who has seen the biggest gain...
I have long tubes, ORY, and a cut-out with stock catback. Im ready to put a catback on my car finally. Any help would be appreciated I have read threw so many threads about this and that, and this exhaust does this, but does anyone know for sure which one produces the most power. A straight threw buillit muffler, or a regular muffler. thanks.
I have long tubes, ORY, and a cut-out with stock catback. Im ready to put a catback on my car finally. Any help would be appreciated I have read threw so many threads about this and that, and this exhaust does this, but does anyone know for sure which one produces the most power. A straight threw buillit muffler, or a regular muffler. thanks.

this is one of those stupid LS1 myths that needs to be killed. yes its LOUD. if you don't want it loud then don't do it BUT don't ignore it because people tell you it sounds like crap... it doesn't.(keep in mind i mean WITH the bullet, i agree its pretty raspy with the original resonator.)
also, if performance is particularly important to you consider this....
LM, Lid, Nittos, 3200 stall = 12.90 @ 104
SAME mods plus LTs/ORY = 12.30 @ 108
nuff said....
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Last edited by Dal1as; Oct 20, 2004 at 09:12 PM.
if so, thats GREAT for a stock internal car! I went from 299/309 tq stock to 311hp 320tq with teh LM ana an slp airlid.
Added qtp longtubes, catted y, ported TB, u.d. pulley and a good Eastside tune, and no am at 359HP and 368TQ, and the under peak #s are WAY better, all at a very safe consistant 12.5 afr. I think I am up 35 HP and nearly 50 TQ at 3500rpm. Very noticable difference.
if so, thats GREAT for a stock internal car!




