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Big Gun CDI Box?

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Interested in Big gun CDI box rev limiter. It claims to increase rpm capacity by 1,000 rpms. Will this CDI box work without a big gun exhaust? I plan to install FMF Q4 exhaust. How reliable is this product? How noticeable is this modifications performance wise?

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Yes. Of course. I don't know. Not very useful, the DRZ doesn't make power that high. Not with that pipe anyway.

Edited by HansLanda

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Waste of money. They provide a slight increase in power at the bottom but the boxes are prone to failure and cause misfires.

 

As Hans said, the bike will be doing nothing but making more noise at those rpms. The bike will rev up happily as high as you let it. The valves will protest by snapping in half unfortunately.

 

Sent from my XT1650 using ThumperTalk mobile app

 

 

 

 

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And they don't increase RPM by 1000, either. At least not the ones made 8 years or so ago. Don't waste your money on any aftermarket CDI.

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