Y2kforgedSS

I got bored one day and drew up what i wanted as far as exhaust when i get my car out and this is what i came up with. I want to keep my mac headers then run 3 inch pipe off the headers to a 4 inch X pipe then out into 2 flomaster 1 chamber out into dumps pointed to the ground but kinda out toward the door.

What do you'll think as far as sound wise cause you can listen to what it sounds like on ls1sounds but i just dont know exactly what it will sound like in person im just so excited to hear it. And by the way does anyone have a pic or pics of some simular examples of what i want to do?

Thanx

Josh

8banger

iTrader: (16)

4" X-pipe? Are you sure? 4" single pipe is more than adequate for stock displacement LS1 and dual 4" is overkill. If you're doing an X-pipe, don't go any larger than 3" or you will lose lots of very usable low end torque. Good luck.

5POINT7

It'll sound beast.

Lane

iTrader: (1)

A 2.5" system will be best for your Macs, since they have 2.5" collectors. And 2.5" duals should be good to 450 rwhp, at the least.

On my stock internal car, my 2.5" system, with Dr Gas X - made more power than Pacesetters with a 3" system - and Hookers, with a 3" system. Was faster at the track too. Plus, it was a quieter, smoother sounding and riding car.

Dual 4" won't fit anyway(with any kind of clearance) - and the only reason to do that is if your headers had 4" collectors - which is WAY overkill, like bull said. I've built many 3.5" systems and they barely fit with decent ground/floor-board clearance.

BLASTER

iTrader: (4)

I assumed he ment the cross section of the X would be 4". They are typically 4-4.5" depending on the inlets/outlet of the X

Y2kforgedSS

yes i did mean in the middle of where the 2 pipes meet, and i think i would rather go with a 3 inch pipe all the way back, but then again i dont know cause wouldnt a 2.5 be to small? I dont know im just asking.

67SS&99SS

iTrader: (7)

I've got Jet Hots with flowmaster single chambers with 2.5" pipe and it is plenty for a stock displacement ls1. Don't go too big or you will kill your torque as others have said. Plus, your clearance will suck with 4". Here are some pics of my setup. It flows plenty in my opinion.

5POINT7

That's a good looking setup. Can't say I've ever seen cutouts on a true dual system that's dumped before the rear.

67SS&99SS

iTrader: (7)

I knew it already flowed alot, I just wanted to get what little that was held back outta there on occasion.

Y2kforgedSS

thats exactly what i want as far as exhaust, except the cutouts. I like that i just wished some one had a sound clip of that setup at full throttle cause ls1sounds doesnt.

Lane

iTrader: (1)

Every dyno comparison I've seen with similar set-ups - the cut-outs cost quite a bit of torque and some hp as well. You're bypassing the best part of the exhaust when you take out the X... Not knocking your system at all, it's looks good. Just passing on what I've seen.

67SS&99SS

iTrader: (7)

lane: i primarily installed them just for the sound of open headers. I love that sound.
sound clip: wound it up it up to 4grand in first and 5 grand in second (A4). right click and save target as:
http://people.clemson.edu/~jaander/V...aro20punch.MPG
My friends 6 speed car with same setup. 2nd gear punch:
http://people.clemson.edu/~jaander/Videos/MOV02659.MPG

02WS6Bird

iTrader: (2)

itll sound llike boom tubes that rumble adn roar rather than SCREAM...thats all i can conclude

LS1 Sounds

iTrader: (11)

Sounds good man, do you mind if I add your clips and pictures to www.ls1sounds.com?

blkZ28spt

I'll have cutouts on mine before too long.

That is a nice looking setup josh. No rust yet either.....

67SS&99SS

iTrader: (7)

LS1 sounds: The vid of mine is already on there, but my friends car isn't. I don't think he'll mind one bit.

Y2kforgedSS

Man i cant wait to hear what its going to sound like when i get my car out im so anxious and already have a race setup at work with a 3rd gen camaro with a carbed motor, so i cant wait cause they say im going to loose but they havent seen my car sence ive worked there. Thanx alot guys.