Cleave
FRF Addict
I don't know why people want long tubes on a raptor. Most four wheeling is done at lower RPM's so that the short tube headers would be advantageous. Just a thought.
What are these "lower RPMs" you speak of? All the raptor runs I've been a part of you spend most of your time 4,000-6,000 rpm, usually in 3rd gear, sometimes 4th