02-23-2014, 12:34 PM
(02-23-2014, 08:23 AM)The ferret_imp Wrote: Buffalohead..I am not an engineer, but as I understand it, a 4 into 1 exhaust designed for performance (not appearance) has something to do with the length of the head tubes, or how far the exhaust pulses must travel, whereas each exhaust firing is timed so that it pulls the next exhaust firing along with it, I assume like 4 motorcycles drafting each other down the back straight thereby making the exhaust more efficient.
Don't know if that qualifies as an exhaust extractor or not? Or if I even explained it correctly.
Yes, that is what an extractor does. I guess a better question would be "are all 4 pipes the same length?" If so, that would make it an extractor (for the reasons you described). But I wasn't sure if there was enough room for same length pipes or if it would look right.