well how about a full true dual 3" set up on a moded Lq9 6.0? My new set up is a LQ9 with a set of stage 2 heads, a 230/236 .591/601 @110 and a few other ods and ends.

 

I would have to say that would fit it nicely. Your pushing a hell of alot more power than us 5.3 guys so you could do it. lol.

Damn Eric, Whats next?? That trucks gonna be a beast!! How did that hood work out for you?? I bet it looks sick on your truck!!

 

I must say the hood looks bad *** on the truck, once I drop the motor in I will be moding the hood to accept the new air intake. I pick up my tranny some time here in the next few weeks and should be on the road my the first of the year.

 

I think they make a nice header, I've just heard of/seen a few where they're showing signs of rust through the coating. Seems like everyone who's had them has reported nice gains though.

That sounds awesome! Your truck is gonna be a monster!

 

Sweet. I got a deal working on a set of ASM's. I dont wanna get anything thats going to rust and be all nasty though. lol.

 

Hey i had almost the same setup in mind.. stainless works headers.. and X pipe..two exhaust dumped before the axle...obviously this is custom mandrel bent though...I noticed that the stainless works headers dont have a flange on the end of the header to bolt the pipe to...do you just weld here?? i also saw those magnaflow stainless xpipes on ebay for a decent price.

 

you can have an exhaust shop weld a flange up to the headers. i wouldnt weld them together incase you ever feel like pulling it out.

 

The big thing to worry about is when you run too large of a pipe your exhaust velocity slows down and it hurts performance because your headders wont scavange as well. The idea is to have a vaccume in the header tubes to suck out the exhaust the next time by.

http://www.ssheaders.com/header.htm

Every thing there is to know about exhaust and headers