Which is the best offroad X pipe to get? Also Flowmaster super 10 or slp lm1?

 

Flowtech, or Dr Gas. They are true X pipes, and not a clam shell like BBK, and Bassani. Also the closer the X is to the motor the more power it will make. With either of those mufflers if you drive the car a lot you will begin to hate them. If you go Flowmaster, I prefer the 40 series Delta Flow