StraightTimeStirrups

What have you guys done as far as routing the exhaust systems when running a true Dual Exhaust system on these Gen 4 LT1 Cars? Post photos if you have them!

I am about to install a set of Long Tube Headers and there really isn't too much room under there so I am looking for routing ideas. This will be a 99% Track Car and not a daily driver.

Is it best to keep the system at 2.5"?

Joe

VinR1

iTrader: (17)

The brand of headers makes a big difference since the collectors are over 3" tall and your tubing is only 2.5"...quality headers like Kooks will always have better ground clearance over cheaper brands. I dont remember the specifics but I think 2.5" duals are fine up to somewhere around 600hp

If you run the tubing side-by-side, a good exhaust builder can make it fit in the tunnel - this is a LS1 car but same floorpan. The lowest points in order are the airdam, oil pan, then the AR headers...

VinR1

iTrader: (17)

Oh, and thats a 3" system - a 2.5" system should be able to be tucked even better and higher

96lt1m6

iTrader: (31)

I think these cars should have been designed with true duals, it's just AMERICAN MUSCLE LIKE! I did the under axle style many years ago w/pacesetters. Some people talk crap about it since it is NOT mandrel bent however it makes NO difference in performance at our level it's more for looks.
https://ls1tech.com/forums/lt1-lt4-modifications/1502622-johhny-law-strikes-again.html

MasterTomos

iTrader: (15)

The Y pipe design isn't really a constriction at all until you're really making some power.

pancho toco loco

iTrader: (8)

Im digging that dual to single exhaust set up, really trick. Wonder how much you gain with that set up

VinR1

iTrader: (17)

...its for sale...in TX. Can't really ship it.

96lt1m6

iTrader: (31)

Personally from what I saw with my car the headers made the difference. Duals were on my car about 3 months before I did the headers.
Longtubes
X pipe
1.6rr
Tune
4.10s
I went from 13.9 to 12.9 if I had installed a real clutch instead of of the autozone replacement crap!I would have done better........

96lt1m6

iTrader: (31)

Oh and the mph went up from 99/100 to 105/106with everything.

lt1slowz28

vin where in tx... im in temple/belton area...

coolmanvette75

iTrader: (2)

No Y-Pipe sounds better than true duals IMO

96lt1m6

iTrader: (31)

That is true duals, the x pipe is designed for scavenging. Does change the sound a lot....

VinR1

iTrader: (17)

lt1slowz28, its in College Station but the owner lives and works in the dfw area. I de-modded his car and the performance parts are in my garage. Keep in mind it fits ls1 longtubes so unless you have Edelbrock victor series lt's, the driver side will need to be modified slightly. PM me if you want more pics, price, etc

grn95t/a

iTrader: (10)