i have an 03 flht with 16000 miles on it, i just installed a set of vance and hines true duals and put d and d slip ons on it, it has a stage 1 breather kit installed. im having trouble with it popping out the breather at 2000 rpms. found a bad rear injector replaced it and it ran good for 60 miles. back to the same problem. replaced the intake gaskets with s&s gaskets and it ran great for 200 miles, now back to the same problem. it also snaps and cracks out the rear cylinder exhaust pipe. does any have suggestions? seems to be common ground in the intake area. when work is done it runs good for a while then we go back to the original problem. thanks to all, this is a great forum....