Ok. I was going to get the 24.7 xtm engine but decided to get something that would be legal just in case I decide to race. I have pretty much settled on a RB S5. For life and maintaining a tune. Until I get the money owed to me I was going to get a pipe to use on my force .26. Here is the ?. Would I be better to get a Rb pipe since that is what engine I will end up running or get the jp-1 pipe that I was going to put on the force. Which would be better for which engine? I figured the rb pipe would be best for the rb engine but wasn't sure about putting the rb pipe on the force. Which rb pipe? thanks and I will shut up now. :shrug: