Midified Stock CDI?

[fastrax]

Does anyone know to whom I can send my Stock CDI to have it modified? i was also wondering if they can modify the advance curve as well as the rev limiter, or just the rev limiter? Any contact names or web sites will be most helpful
Thanks!

[iride440ex]

Check out this website it does black box mods.
www.profabatv.com
click on engine building info then scroll down. It shows for 300ex but he might do 400ex black boxes also.
Tony

[AndrewRRR]

Curtis Sparks can. www.sparksracing.com

[86atc250r]

GT Thunder has a CDI box with a modified ign curve, a higher rev-limit, and doesn't suffer from the cold start problem.

This is NOT the same XR250 box the other guys are selling that does not start in cold weather or with a low battery.

Cost is about the same as the other guys charge.