its time to install the longtubes and off r-x I bought a while back.i know it would make that easier if I install a after market k member now.will this take away any of the street car comforts ?vibrations ,poping sounds,etc. just don't want to mess up my daily driver.i do go raceing some but mainly this is my work ride.has great mpg compaired to f 150.and which one is better upr or bmr?:-D