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We have seen some great results from an Ls2 GTO with an APS kit we finished tuning today. We helped this customer with the build, but he did all the installs himself.

6 speed w/ Spec 3+ clutch

stock short
stock unported heads w/ Patriot Golds
stock unported intake and throttle body
our TU1 225/225 cam
crush bent 3" exhaust into a set of Magnaflow mufflers
our first twin intank 255 pump setup along w/ our billet rails and an Aeromotive Reg.

7.5 psi / 93 octane

616 rwhp
565 rwtq

13.3 psi / 100 octane

773 rwhp
702 rwtq

18 degress @ peak TQ

16 degrees @ peaking HP


 

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yes...we were very surprised by the final #'s. This is not what we would suggest for a stock motor, but the customer wanted 12-13 psi and we did it with 0 issues.

:cool:

The LS2 is a stout motor as we know and many have made big power and it really comes down to the tune.

hope to have some blower results on our 5th Gen soon:D
 

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Wow, I came so close to buying on 06 GTO and I kinda wish I did now. What kind of power are LS2s able to hold reliably? Those are really some amazing numbers.
 
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