Question about dumped exhaust...

[smttysmth02gt]

Will this increase or decrease my performance any? I know it'll sound better IMO. Louder and deeper, but a friend asked this question. I'm not sure either way so I thought I'd post it up.

 

[40th GT]

Will it increase performance?

Sure it will, but only on highly modified engines that need to have every single bottleneck removed.

On a street car, it's just for sound.

 

[Mirrahasmycar]

If you have 400 +hp and you ave 1 chamber flows + no Cats

 

[Dope 97GT]

dumped mufflers suck. i have them and all i get is dust all of the rear end. they sound really nice but i cant keep anything clean. after i drive down the road my car is filthy with dust.

 

[crazynorwegian]

I used to have them. i first got them on my stock h pipe and it sounded like crap. way too deep and muffled like a fart pipe on a ricer. when I changed the midpipe for an off road one, it sounded very mean and aggressive. almost identical to my friends 65 stang with the dumps. I did notice a slight decrees in low end, and the top end pretty much stayed the same.

 

[jamez1502]

i agree. mine with stock h sounded like crap.. but with my or x it sounds good.i wish i woulda went with a h pipe. like on my cobra

 

[timeless2]

dumped mufflers suck. i have them and all i get is dust all of the rear end. they sound really nice but i cant keep anything clean. after i drive down the road my car is filthy with dust.

Gravel roads?
This is the first I've ever heard of this problem--from a healthy running car, that is.

 

[merc123]

I lost a LOT of torque. I lost so much torque that I was dead even with a non-modified Honda Accord. After about 90 MPH you can see some performance. My 90 to 100 was a little bit faster feeling. Other than that I didn't think it was worth it. If I just want the sound for the day or two I just disconnect after the H pipe and pipe it down. That does the same thing.