Wait so I'd be at 340 WHP with those headers o_O? That can't be right.

No you won't.

Was gonna say if you want to guarantee 340 whp peak I'll do it lol

I wish that were the case, but it isn't.

Law of diminishing bolt-on returns. I figured more like 325 whp with my set-up if I sprung for the headers.

Apparently that isn't even achievable. :ugh2:

They are a little fluffed 10% is just the typical number to use when comparing the two different types of dynos. Also I know the first mod you do is the biggest but this dyno was stingy trust me. Even the shop said I should be around 300-310is. This setup would see 330 no problem.

I'm at 324whp without headers ;)

I hate to break it to you, but it won't. I know. That's what I was expecting as well... Didn't happen.

We know, ass. :rolleyes:


:bowrofl:

Also one of you gays better have a camera to finally film my exhaust sound lol

But none of you have the ark exhaust.Lol Its okay I don't really feel like having this debate. Anyways point is headers are for sale they have the gains. Same as the exhaust.

What dyno does aam use?

I did film it, just the runs were not impressive enough to merit uploading... :bowrofl:


They're super huge files, if you want me to email them to you, I'll try to figure out a way.

I doubt a mustang dyno. to the aam website!!!!