There is a differance between a no rev limit and an adjustable cdi. The adjustable allows for adjustment of about 4 degrees timming advance or retard. The no rev just removes the rev limit.You will notice minimal to no gain with the no rev cdi since you will now operate the engine above the power curve. There are many differant types of cdi's. No rev, no rev with fixed advance, no rev with adjustable advance, then all the above with increased megajewels. You can have 3 identicle looking cdi's but all will perform differantly. This is why I say you get what you pay fore. It makes it difficult for us to purchase a product blindly. This is why I and some other dealers go through the trouble to order one unit to check it out. If it performs good we stock it. Most e-bay power sellers have no idea what they have, all they know is what China tells them.China will dump a defective product on the market in a heart beat. Also there is not one mod which is a majic bullet. Several mods are what make the noticable power.
Tom
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