I'd go with an actual exhaust before I went with a CDI on the 660. I think the big allure for a CDI is on the 700 Grizz to cure an inherent timing issue that causes a midrange "miss" that becomes more noticeable when you mod the engine.
I'd go with an actual exhaust before I went with a CDI on the 660. I think the big allure for a CDI is on the 700 Grizz to cure an inherent timing issue that causes a midrange "miss" that becomes more noticeable when you mod the engine.
I don't think a CDI would hurt you at all. But in terms of a performance "bang for the buck" a pipe will get you there. there's a couple aftermarket pipes that are not very loud. I never added one because of how loud they were, until HMF came out with the swamp series. I don't even have to run a quiet core. The best test is my wife, she didn't even notice a difference.
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