I've got a nasty 408 that still needs more mods. Numbers are in sig. I have stock intake and pacesetter headers. Like the title says, which should i do?

Kooks 1 7/8in stepped to 2 inch headers

or

FAST 90/90

 

I'd probably go with the Kooks, as they will benifit more with a big shot than the intake... that is, if you are planning on spraying it. If not, I'd run the 90/90 probably...

 

It's gonna be seeing a lot of nitrous

 

go with the headers.
You'll need the exhaust more so than the intake. I know of a guy running a LARGE shot with the LS6 and he had the LSX on there... Didn't gain more than a couple HP in peak, but slower at the track... I'd suggest the Kooks setup, and a good exhaust setup behind them.

 

Any more opinions?

 

I agree, with the spray the headers will give the better gains, on motor alone, probably a toss up.

 

where are you getting those big race stepped headers at?

 

go with the kooks.

you can call most sponsors that carry kooks and special order them.

 

There are even some bigger options, and some in-betweens that are rarely seen too...

 

What Year Is The Car

 

2002.

 

 

Get both, just put it on the Credit Card and pay later.

 

whats your address again?

 

i tend to agree with above statement

 

I got both, but there on my stock bottom 346. I plan on getting a 408 soon. Good luck!

 

How is the fitment on the stepped headers?

 

Don't know, I haven't tried them on yet. I did have the stepped 1 3/4 to 1 7/8 and they were fine. Hopefully these 2"ers will be the same.