klx 143 kit pipe question ??

[mills217]

I have the old 2 brothers pipe and i like it but i wana add more horse power if i put the new pro circuit pipe u think it will make a big difference or should i spend the money some where else 165 kit??

[PlanetMinis.com]

[Markopolo400]

Probably won't make a noticeable difference. Get the 165 kit

[mills217]

thats what i was thinking to thanks so i have to get my cases bored then right and just buy a 165 kit for like 200 bucks??

[Markopolo400]

Yep 165 needs the cases bored and the TB kit is like $200. Throw a stroker crank in there while it's open for a 177cc monster.

[mills217]

i was thinkin that but brent at bbr said they dont run those cranks cause it causes problems they keep stock crank in there bikes?? what problems would it cause??

[Markopolo400]

With a fully skirted piston (The reason the cases need to be bored) I can't imagine it would cause any problems.