Exhaust diameter

[Chris197F1]

Anyone happen to know if the diameter of the standard exhaust tailpipe is the same as the ktec one?

 

[deadmau5]

I think it's 2.5"

 

[Chris197F1]

Was just thinking as I was going to order some tailpipe extension/tips to direct the heat/gasses out of the way of my diffuser due to the melting im getting at the mo so wasnt sure if they were the same size or not