Crossover pipe on a Sportster?

[tatts2]

Thanks Guys i have taken it all in and appecate the feedback am going to keep it in and change the muffers..

[invisiblehand1]

probably the best bet is to try these two sites.

www.xlforum.net

www.sportster.org

they will confirm that sporties are VERY sensitive to mufflers. The stock mufflers are too small and quite restrictive. The balance pipe tricks the bike into thinking it has a much bigger muffler - essentially because it uses both of them.

for best bottom end, get bigger/less restrictive sausage mufflers.

For best overall power a 2:1 seems to be the go. They turn up from time to time on trademe, the one from the 883R or its screaming eagle alternative are probably the best bet in NZ. AMP in Auckland can import you anything from the Vance and Hines range at quite good prices. They advertise in bike rider and kiwi rider a lot as power something or other.

Enjoy.

The absolute best thing to do is get the sportster Buell performance book and have a read. They reckon the 1200 conversion is the best power boost you can get, then pipes and aircleaner.

All the sites call pipes and aircleaner "paying the harley tax" it makes a real difference to take off the stuff put on for compliance reasons.

For the same reasons, maybe hang onto it for WOF time?

[rok-the-boat]

The crossovers just help steady the tickover at low rpm. I changed mine and it became more lumpy. It improved once I put different mufflers on. Most of the power is transmitted into noise anyway so who cares ...

[rok-the-boat]

By the way, best pipe for a Harley is the Thunderheader. I can't beleive the differnece they make - unbelievable! Rather noisy, but just amazing power delivery. I have ridden various HDs with variouis pipes and the Thunderheader is the only pipe that makes a noticable difference in terms of power and power delivery after you bolt it on.