I have JBA shorties on mine. great low end torque. plus no engine lifting to get these in but it did take about 5 hours to get it done, and one of the bolts was real tricky to get to, in fact one of those you cant see but had to feel for it. my friend who helped me had a special wrench he bent for the occasion. long tubes would have been a pain in the arse to install. I have had mine on for about 6 years now.