i have lt's, cai, no cats soon to be dual exhaust with x pipe but for now its just a 3" y pipe. and it was dynotuned not a mail order....

 

cold air will mean nothing to you, but forced air overpowers cold air, so its cool.

the exhaust will obviously help tremendously, with any sort of forced induction and moreso on a boost motor than a NA motor. (engines are glorified air pumps, whats forced in wants to get out even more-so)

do my numbers sound even better being that I have factory manifolds, cats and catback?

 

I made 504 RWHP with the radix on 8psi through the stock manifolds and 475 foot pounds at 2500 rpm

 

yup sounds alot better, hope my little 5.3 will impress me.

 

how much boost can a stock bottom end handle?

 

hell of alot better than those lame 400's numbers I was hearin

that with the vette motor or the 5.3? Buddy has a LS1 in his avalanche and had a procharger on it.....was pretty damn strong..

now its goin with a stupid 402 and this paxton...the duramax allison swap was too involved and needs pretty much an entire useable wreck

 

ahh the age old question that no one will agree on. I say your 5.3 with a good calibration will live forever on 8-10 psi before you are playing with fire.

 

That was on the 5.3

 

when it blows that was too much?

depends on lots of variables, first being tune, second being condition of the motor, third being your right foot, then you can add in methanol for a lil more, drop compression for a lil more etc.

I'd say on straight pump gas 9-10ish, ad meth a lil more

 

LMFAO..... Translation: when your block has a window, you have gone too far!