a bigger converter is not necessary unless you swap the cam and get slicks.

 

The headers come with new bolts I purchased gaskets through summit.
The trans fill tube is a bitch so take your time

 

wow why is everyone wasting money on gaskets? The gaskest we have are muti-layer metel that are also embossed? Theres no need for it ask nick at DT he will tell you the same thing.

 

Mine are going to sit in the box for while till I can save up to get them installed and tuned at the same time.

 

I'm talking about moving the powerband north, as in a higher stall. The cam swap would help yes...but slicks? Unrelated...

 

Guys...be sure to get tuned after you get your headers....

 

a stall is not going to "move" the power band, it just lets the engine rev higher. Why would you want to rev the engine higher with a stall on street tires? Most people can't get traction with the stock stall using street tires, let alone using a bigger one. Your just going to spin your tires. That stock stall is perfect for the power range of the engine. Unless you change something that affects the powerband ike the cam, the power range isn't going to change much.

 

Well y'all,
Installing headers today. So excited I could almost sh*t!!!!!!! Like everyone else, will post up here later will my thoughts and impressions.....

Alabama....
From your quote above sounds like u got your tune done.... If so, give us the scoop.... (New characteristics, changes, yada, yada....)

 

X2! How it feel after the tune? Got any numbers to throw at us?

 

One could say coupling a converter, cam, headers, ls6 intake would change/move the powerband.

Maybe I should just contain myself. It seems like we have a lot more mods that are finally starting to develop for the LS4 that actually make power now

 

sick^^^ now its time for you to do the intake.

 

Yep! Maybe one day

 

Nice gains...

 

great gains!

 

Nice gains AG....with some other mods here and there I think you are on to the formula for a sub 13 N/A pass. Perhaps a little N20 soon?

 

Hey AG congrats! Can you give us a updated mod list?

 

Wow man. Those numbers are very nice! Congrats.

 

Was your car ever dyno tuned before you installed the headers?

 

It was tuned with the catless DP and a cutout.

 

I was just about to guess something like this. I was actually going to ask what the real need for a tune was. I'm not disagreeing with you, but one of my friends said I needed to get a tune after the headers. The reason I was gonna ask was because my friend has been known to be wrong.

Was that 224hp rating an actual baseline, meaning no mods, for the car? Or was it with one or two mods already in place?

I don't know how much hp we lose getting from the engine to the tires, but I did some calculation. If your 224hp was a baseline, with no mods, that is 73.9% (I'll round to 74%) of the factory 303 hp rating. Assuming you lost the same percentage of power with the 276 hp rating, I calculated 372.98 hp (round to 373). How close am I?

Also, what do you suggest for those of us who don't live near a shop that can dyno tune stuff?