Hi everyone,

I am currently running a 2 1/2" TTI Xpipe setup on a 550hp setup with superturbo mufflers. Are there any benefits of running the Ultra flows in 2 1/2". The car is for street only. Ultra flow makes 2 lengths. One is exactly the same length as my super turbo which is 20"s. The other is 14"s. Does it matter which length I choose?

Thanks