Originally Posted by
Loner
I've had several sets of both types. The 4 individual pipes work great except the muffler inserts burn out very quickly and the exhaust is a bit loud for my taste. The 2-into-1 type mufflers work great as well and the muffler inserts (baffles) last indefinitely (although it doesn't qualify as a quiet exhaust by any means).
From the rear exhaust flange the 2-into-1 pipes extend 12 inches (325mm). The 4-pipe system is a bit shorter (about 6 inches shorter I guess since I don't have one in my garage at the moment).
I hope this helps.