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OK, talked to Gerry at Bender Racing Canada. He was there when they were making the big bore pipes. He said they never made a big bore...

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Yep, I would run the stock main jets, move the clip on the needles to be at 3 1/2, and turn the fuel screws to 1 7/8 turns out. (They...

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Yep, I would run the stock main jets, move the clip on the needles to be at 3 1/2, and turn the fuel screws to 1 7/8 turns out. (They...

The stock jets for your Viper were 156.3 so as stated 160 is too big for a stock exhaust Viper even with a can. For part throttle...

The stock jets for your Viper were 156.3 so as stated 160 is too big for a stock exhaust Viper even with a can. For part throttle...

A 'can' doesn't usually affect jetting.

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The Boss Proaction seats fit the SRXs, VMaxs, SXRs, and Vipers. Being that I am in Canada, the shipping issues for a box as big as these...

I would assume that if it fit an SRX it would fit the SX. Are you willing to part with one?

Couldn't have been that long. I haven't had my seat for that long... I've only had it for maybe 8 years.

A 'can' doesn't usually affect jetting.

160 mains are way too big, unless you have a big bore or something like that.

wow.... brothers was similar to that but not as bad as yours. looks like the needle bearing in the connecting rod let go and made it...