Hi guys need some advise I got a 2011 Sierra Denali that has a cam, longtubes, CAI, custom tune, and am looking to upgrade my intake manifold with the F.A.S.T. 102mm and was wondering if anybody here done it before and is it really wroth it

 

on all of the reports ive read it picks up 20rwhp roughly...but is 20rwhp work 1300.00?

what size LTs do you have 1 3/4" or 1 7/8"?

 

Wow $1300? I was thinking around $800 bucks can the stock intake be portted? Thing is I'm getting ready to do a front mount turbo on it and wanted a better flowing intake but $1,300 is crazy I have also seen that holley makes a high rise ram air intake manifold made out of aluminum any info on that one?

 

I have the 1 3/4"

 

______________REMOVED.. Didn't know thus was for the truck in the avatar..

 

I thought it was 20-30 on a stock motor??

 

How bout the LSX-RT?
Texas Speed has them for $900 but I'm sure you could pick up a used one for a lil less.

 

Yeah that's the one I'm looking at but Ima going to need a new T-body I'm sure

 

i dont believe fast makes a truck intake for the square port heads. Your stock denali intake flows plenty.

 

you can not put a "NNBS, TBSS" intake on a 6.2 unless you change heads which is stupid. if you are going FI i would just run a stock intake, look at the ton of guys making 500+ rwhp with a stock intake, baby cam. i dont think you should do an intake swap if you are not doing a 3k set of heads, 1 7/8" LTs blah blah blah.


20rwhp on a stock motor so say yes, but look at wheatley's dyno graph *i am unsure of the gains but i think max was 23-25rwhp i can be wrong on that though*



just put a 72mm with your stock 3.5" exhaust and throw 10psi at it i bet you wont want to waste the 1300 on a intake swap. 800 is intake alone but you will need more parts to make it work so i say 1300