Difference between r and cr

[ATFIII]

Just in case the speed question hasn't been answered, I have had my 09 1125R to 171 indicated.
Jardine RT-5 slip-on with an EBR ECM tuned for the exhaust, and a K&N filter.

 

[03Firebolt9R]

Just in case the speed question hasn't been answered, I have had my 09 1125R to 171 indicated.
Jardine RT-5 slip-on with an EBR ECM tuned for the exhaust, and a K&N filter.

With a T shirt, shorts and flip flops I hope.