Best Mod,s for a 660 Grizzly

Discuss Best Mod,s for a 660 Grizzly in the ATV & DIRT BIKE RELATED DISCUSSIONS AND INFORMATION forums; Just recently purchased a '03 660 griz, and wondering what are the best mods for more power. It has 28" ...


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Old 08-31-2009, 12:12 PM   #1 (permalink)
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Best Mod,s for a 660 Grizzly

Just recently purchased a '03 660 griz, and wondering what are the best mods for more power. It has 28" mudzillas, clutch kit, and a K&N air filter. Do they make a chip or cdi box for this year?
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Old 08-31-2009, 11:58 PM   #2 (permalink)
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Re: Best Mod,s for a 660 Grizzly

you can get a CDI box. Pipe it. If your looking for low end power, do a mud buster cam.

More power, the more likly you wil break the little grizzly axles. Beware.
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Old 09-03-2009, 10:56 PM   #3 (permalink)
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Re: Best Mod,s for a 660 Grizzly

Put a pipe on it ,you will notice a difference
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Old 09-07-2009, 02:29 PM   #4 (permalink)
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Re: Best Mod,s for a 660 Grizzly

Thanks, What type of pipe and cdi box would you recommend? I don't want it too loud.
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Old 09-14-2009, 01:06 AM   #5 (permalink)
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Re: Best Mod,s for a 660 Grizzly

Best mods done to mine were the pipe (HMF Penland), Mudbuster cam/Wiseco piston combo, clutch kit (EPI mudder) and snorkles. Not much of a difference with cdi box (removes limiters wich is nice but doable for much cheaper). I also have a stroker crank in mine but now have to run race fuel blend cause of added compression.
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