Dynoed exhaust set-ups

[92redman]

Lately I have seen quite a few discussions about upgrading the exhuast or gutting the cat/getting a test pipe for the n/t.

I am sort of curious on actual gains as well but nobody seems to post anything to back up what they say. Some people think that a test pipe or a 3" exhaust will hurt low end torque but gain some top end power. Some say it will hurt your power all through the powerband.

So I would appreciate it, and so would others, if some people would post some numbers they have personally gotten from doing exhaust upgrades.

If nobody has dynoed before and after exhaust upgrades, then get up off your @sses and do it.

 

[Mr. Talon]

i made a stright pipe, and ahve a magnaflow race series (straight thru performance ) and i have noticed quite a lozz in low-end torque, but the awesome sound, and high end power is worht it. i do wish i would have tried my muffler first without doing anything ot the cat, just to see if that wuld have been enough. my .02

trev

 

[top_end95]

You just have to remember that on n/t's there needs to be some restriction for trq and low-end power. When I had my 95 n/t and gutted the cat, I noticed a pretty big power loss.

Best thing to do is to get a HI-FLO cat (you will still notice a little power loss at low-end but a lot less than gutting the cat) w/ a 2.5" cat-back exhaust.

Top-end power will also be more noticeable

 

[92redman]

Thanks for the replies, but I really want to see some actual numbers so we can really see how the entire powerband is affected or maybe some timeslips before and after a custom exhaust install may help some.