Ebay After Market parts any good¿????

[RyanosAlien]

Hey

Well after doing a lot of reading and watching various videos on the gy6 motors I've decided what all I'm going to upgrade to get rid of that full throttle bog but I got a few questions for the people who has used the parts, I'm going to order.

Aftermarket CDI to remove rev limit or at least find 1 that raises it and coil+plug to match, now I see 100's on eBay but the 1,I'm interested in is the blue cdi that's labeled "unrestricted" with orange coil and NGK plug that runs about $25, has any 1 tried these and while I'm at it buy filter to fit right on the carb, and rejet the carb to either 110 to 130 but probably 115 but with living in Tennessee I don't know how to calculate what's best, for my elevation, that's were I'm wanting to start and go from there, any advice on the eBay parts ???