Thread: LS4 EBay/OBX Header Review

Ugh. I keep finding good deals on ls parts for sale pages. But then some ass hole always comes by and is like hey u know u can get 350-400 for that right! Then the guy will message me and say he's reconsidered his price...400 fml

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Why not just buy the new Dorman LS6 from RockAuto?

Apparently flows better anyways.

And it's $300, new.

It doesn't flow as good as ls6.....but I've actually been considering it. It's almost as good as ls6. Maybe one day. Or maybe on the new engine I have.

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Maybe I read it backwards then.

Wouldn't surprise me.

But porting is free.

How much of a gain do you get with LS6 manifold?

I miss the franken builds with the wbody platforms

Wasn't much fraken going on, just top swaps.

Originally Posted by TEK310

How much of a gain do you get with LS6 manifold?

Well ls6 over what I have now. Maybe 5-10 whp

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I was told after getting the car dialed in with nothing else than a manifold swap it's close to 30WHP/WTQ across the range, sometimes more.

I wish you guys were closer. I seriously don't have the balls to dig into my motor... Just not familiar with the LS platform that much I guess.

Build looks good. Take a lot of pics of your turbo build I want to see that. I'm going turbo this year too on the GTP, but I'm only shooting for 400-450 whp. I'm helping a buddy pull his trans out of his GXP that took a crap last week. Got any v8 trans removal tips.

Rear mount sucks.

Everything else is pretty much the same...TQ converter bolt removal I hear is kinda crappy and you have to be careful with the starter bolts. Exhaust crossover and air intake tubing/box needs to come out as well. Dave @ TEP said the rest is just comparable to a 3800 trans swap.

China headers that suck? say it ain't so!

Sucks, but at least it looks like your getting rid of them soon anyways.

I don't have any issues with mine. Never had to re-tighten bolts, nothing leaking other than the cheap clamp I have on the bottom of the downpipe.

Originally Posted by Cocor

I don't have any issues with mine. Never had to re-tighten bolts, nothing leaking other than the cheap clamp I have on the bottom of the downpipe.

But they're so awesome, right?

Originally Posted by blueguy

But they're so awesome, right?

hehe. Indeed. Sound awesome with no cat or mufflers. xD