Nsty98LS1

iTrader: (11)

i'm selling my LM to a guy i know for cash and his stock catback off his T/A. the stock catback will only be temporary until i decide what i'm gonna do about exhaust: either stock catback and no cats with a c/o; stock catback with a new muffler welded in place, cats and c/o; or previous setup w/o cats. after my cam the LM is just too loud now (i didn't think it was going to get that loud) and i'm lookin for some setup that's reasonable with noise but not pissing off everybody when i drive past their house at 4:30 in the morning. any suggestions or advice?

777

iTrader: (21)

the stock cat-back is very restrictive...you would lose a lot since you are cammed

WS-Sick

I only picked up 7rwhp with my cut-out open over my stock WS6 exhaust.

1999T/A

iTrader: (4)

I got a H/C car with a stock NON WS6 T/A exhaust . I lost a TON ! According to Jeff Creech , he says about 40HP . H/C cars and even just cam cars HAVE to have a free flowing exhaust to see good numbers . I got a texas rumbler on the way to solve that problem and Jeff is gonna Dyno me for free to see what I gained . I will post up the before and after dyno graphs for all to see .

Coy

iTrader: (4)

I have the 98 single out SS/WS6 catback, and It breathes well, but a cutout always helps.

mrr23

iTrader: (3)

well here's how restrictive the stock exhaust is when adding 200 n2o to a stock motor. even tried a cutout to no avail. then added the bassani tru-dual. just to give you an idea.

Now here's results of my exhaust endeavors. This is with 200 n2o.
distance ---stock ----- cutout --- Bassani
60ft ------ 1.987 ------ 2.074 ----- 1.969
1/8 ------- 7.902 ------ 7.912 ----- 7.739
mph ------ 93.20 ------ 93.97 ----- 98.60
1/4 ------ 12.102 ----- 12.080 ---- 11.814
mph ----- 117.12 ----- 118.06 ---- 121.35

Diolar Magnum

weird after my magnaflow catback (vs stock) I picked up almost 20 (17 to be precise) at the wheels!!! The rest of the car was bonestock mind you.

Brad

Nsty98LS1

iTrader: (11)

after seeing about .3 difference above in that chart i think i'll just keep my LM and put a XR-1 in place of resonator. now who has the best price on them.