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2008 Dyno Results from Next Level Performance, Already Tuned? 402.5 HP
The only mod I'm aware of is a Magnaflow axle back and my best run was 402.5 horsepower and 395.94. That puts me at somewhere between 451 and 462 at the engine in theory. I got to see some other runs with stock or near stock cars laid over mine and they were all where you would expect, around 380. The highest I saw was with exhaust and Vararam intake but still lower than mine. I've only had it for a month, could it have a tune already? Is there a way to tell? I'm sure the Magnaflow helps but that was more than I expected.
By the way,big thanks to Geoff at Next Level Performance for a great job and letting me come back and do a 2nd set of runs for free when his computer lost my results (computer is being replaced) AND for changing my brake and clutch fluid as part of my vehicle inspection for no extra charge! He'll be my go-to shop going forward.
My LS3 read 400/400 rwhp after tune only, with MN6.
What transmission?
Manual transmission. Geoff saw this post and offered to check it for me so I'll let you know when I find out. I just have to make an appointment with him to go check.
12-05-2014, 11:47 AM
2008 Dyno Results from Next Level Performance, Already Tuned? 402.5 HP
That puts me at somewhere between 451 and 462 at the engine in theory. I got to see some other runs with stock or near stock cars laid over mine and they were all where you would expect, around 380. The highest I saw was with exhaust and Vararam intake but still lower than mine. I've only had it for a month, could it have a tune already? Is there a way to tell? I'm sure the Magnaflow helps but that was more than I expected. 
