Is a 2008 rxt and a 2012 0r 2015 any differance in speed and acceleration?

[gsx99]

input please Yes shopping for stock performance but dont want to be behind my best friend with a 2008 rxt which does a steady 68 but did run 69 with new wear ring and a re pitch impeller by PPG.

Yea GPS running 8150 RPM.

[GP@PPG]

We can definitely get you even more top-speed if you are reving to 8150!! We'd like to see you pulling closer to 8050-8000RPM as the over-rev is excessive at 8150. Be glad to re-pitch again and you are entitled to a free follow-up re-pitch if you paid us to do it the first time, be glad to get you in an even sweeter spot!! Let us know if we can help! GP@PPG