Dual Straight Pipes

**pontgp02** · 07-14-2011

I have a 2002 pontiac grand prix gt and I was wondering if dual straight pipes sound good.

**2001goldGTP** · 07-14-2011

if you like raspy

**blueguy** · 07-14-2011

You ever ate some really nasty mexican food...then in about 30 minutes you were taking a massive dumpfest...Yeah...sounds like that.

**nawarkk** · 07-14-2011

If you take just the Mufflers off, it'll sound okay. It'll be loud, but I like the way they sound.

Upper RPM's won't sound as good as lower/idle sounds.

**AzrakMCSS** · 07-14-2011

yes unfortunately the V6's dont sound to good with the pipes. That and you will prolly loose torque doing that due to less back pressure

**02 WS6 TA** · 07-14-2011

All these haters. Dual straight pipes routed through the hood tractor pull style sound best. Be a Man Chuck- do it.

**TheOtherNick** · 07-14-2011

You would have at least a grand in a true dual set up.

**Iceman6669** · 07-14-2011

Originally Posted by TheOtherNick

You would have at least a grand in a true dual set up.

No frigin way... I can have dual pipes with glass packs ran for $300... Plus the cost of the O2 emulater that is still only like $400

**TheOtherNick** · 07-14-2011

They arent true duals........... you have a single pipe to the y.

**02 WS6 TA** · 07-15-2011

Originally Posted by Iceman6669

No frigin way... I can have dual pipes with glass packs ran for $300... Plus the cost of the O2 emulater that is still only like $400

I can't wait to see that masterpiece.

**benner** · 07-15-2011

Originally Posted by Iceman6669

No frigin way... I can have dual pipes with glass packs ran for $300... Plus the cost of the O2 emulater that is still only like $400

Autozone flexpipe all the way back doesn't count as an exhaust

**tayl5645** · 07-15-2011

Not to mention if you go true dual having the O2 wont do much as it will only be reading half the Volume its supposed to.

**blueguy** · 07-15-2011

Originally Posted by AzrakMCSS

yes unfortunately the V6's dont sound to good with the pipes. That and you will prolly loose torque doing that due to less back pressure

Backpressure is a dumb myth...and you won't lose any TQ...your moving the powerband higher.

Originally Posted by TheOtherNick

You would have at least a grand in a true dual set up.

Agreed. Ask Ron Vogel about the 2" Custom Primaries with the downpipes going under the motor instead of over the bell housing.

Originally Posted by Iceman6669

No frigin way... I can have dual pipes with glass packs ran for $300... Plus the cost of the O2 emulater that is still only like $400

LOLz @ $400 exhaust that does nothing for performance...

Originally Posted by 02 WS6 TA

I can't wait to see that masterpiece.

Pics for sure on top of that.

**JoRoW99** · 07-15-2011

You should make some longtubes while youre at it.

**darkhorizon** · 07-15-2011

Originally Posted by tayl5645

Not to mention if you go true dual having the O2 wont do much as it will only be reading half the Volume its supposed to.

Many ways to deal with this..

No o2 sensors work great.

1 sensor in a half bank works fairly well as well.. if anything it makes things slightly richer than stock.

you can enable dual O2 sensors in most all binfiles out there.

**99GPGTP** · 07-15-2011

you will loose lots of hp with your muffler man special, but if thats what you want to do then do it, its ur money not ours, order you a cat back exhaust for arounf 500 and be done with it.

**blueguy** · 07-15-2011

Originally Posted by 99GPGTP

you will loose lots of hp with your muffler man special, but if thats what you want to do then do it, its ur money not ours, order you a cat back exhaust for arounf 500 and be done with it.

Don't order a catback...if you want a sound change...just buy mufflers.

The factory catback is good for over 300 FWHP...and neither of you guys are anywhere close to that.

You won't lose any HP...but your not gaining anything either.

**tayl5645** · 07-15-2011

Originally Posted by darkhorizon

Many ways to deal with this..

No o2 sensors work great.

1 sensor in a half bank works fairly well as well.. if anything it makes things slightly richer than stock.

you can enable dual O2 sensors in most all binfiles out there.

Thats interesting.

However on the making it slightly richer I would think it depends. On everything Ive seen from engine out emissions usually we have one bank running slightly rich and one running slightly lean. It would be luck of the draw which side you tapped into.

**Iceman6669** · 07-15-2011

I haven't done it to my GP... I did it to my silverado. I had 3" duals with glass packs done on it for $300. So i assume that 2"-2.5" won't be much more.

**Wrongwayislost77** · 07-15-2011

I haven't done it to my GP... I did it to my silverado. I had 3" duals with glass packs done on it for $300. So i assume that 2"-2.5" won't be much more.

It's a space issue. That's like comparing putting a dining room table in your backyard or your bathroom.