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[Monarkk]

Installed the Shorties yesterday, my buddy has a shop with a dyno so he threw it up before and after install. Stock manifold with a CAI and magnaflow exhaust was pushing out 277.1 max HP and 310.7 Ft lbs of torque. After install my truck was at 305.6 max HP and 315.4 Ft lbs of torque. This is without a re-tune from blackbear. Trucks a 5.3l v8. Anybody know how these numbers stack up?

 

[Modded]

That's a pretty good performance gain for the money. I may invest in some eventually.

 

[emann_01]

post the print outs please

 

[dre]

what brand did you use and how much was it

 

[Zed 71]

 

[blueflamed03]

nice gains! With shorties?

 

[07Burb]

I've never seen gains like that with shorties so I'd say you did well!

 

[blueflamed03]

^^^ no kidding!

 

[BOSS]

Eeesh man that's huge gain for shorties, I doubt I got that off my LT's with a retune...Gibson?

B

 

[Cobra]

thats 28.5 horsepower gain claim on shorties. Really?