I dropped my car off to get 4.10's installed and asked them to put it on the dyno before the install. I picked it up this afternoon and can definantly feel a differance with the gears. Didnt get on it too much, want to put some miles on it first.
Anyway I was surprised with the numbers.
282.72 HP and 271.56 torque.
Cant wait to get the gears broke in so I can really get on it hard.

 

the numbers show roughly a 12% gain from
a stock auto. i believe this is correct and to be
expected.
you start around 252 (GT Auto), add 12% (your mods) = 282

very nice

 

These are the numbers from my stock auto

 

impressive 260 is pretty close to where
stock 5sp manuals come in.

 

Nice mhahnjr, my stock 07' manual came in at 262rhp and 281rtq on the dyno.

 

Nice dyno. I did mine before my gears to and was happy with the numbers but not fully satisfied. I am looking for 300NA at the tires. My next mod is the driveshaft causeto my understanding it will transfer more of the engine power to the tires. My #'s are in my sig.