running straight pipes

[Evilution]

i am putting together an exhaust system for my xb9r. it is copied after the xb race kit. no it says on there site it is for offroad strictly, why is this. i mean after all its a hopped up sportster motor and i have owned many cammed out high compression stroked 883's with striaght drag pipes. is it just because of the noise? the only reason i ask is this is m first sports bike.

thanks guys,
Marty

[twoguns]

its just because of noise and EPA regulations.

[Evilution]

oh ok thanks man. thats what i expected.

[jakestolar]

I have a straight pipe on my xb12. LOVE it!

[Evilution]

what ecm do i need to run with straight pipes? or will it work with the stocker? If anyone could through my a part number that would be cool. All advice appreciated.

[anrkizm95]

what ecm do i need to run with straight pipes?

stock with a custom mapp

[Evilution]

do you have a recommendation on who can do the mapp? I email EBR and they said they do not make an ECM for straight pipes, they said their race ecm may work but would not be optimal. i miss the days of just running drag pipes re jetting the carb and you were done .... :(

[anrkizm95]

http://www.thetuniversity.com/

[theoctopus]

Thanks anrkizm95!

I think I can help you Evilution.

[zdawg123]

If someone would design a drag pipe for the 1125s, I'd jump on that quick! With the help of theoctocpus, the bike wouldn't run near as lean and the worry about burning valves would be lessened drastically!