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Posted

Hey new to the forum, I have a 421 cub, I have toomey t6 pipes on it right now(I had the pipes on it before I put the motor in it) i notice not many people running those pipes on here. Just wondering if it would be worth the money to buy some shearers or CPI?

Posted

I ran trinity pipes on a ported stocker. Then switch to t5's. honesty thought both pipes performed pretty evenly. But on a cub, id either go with shearer or cpi's depending on what your looking for. My old 421 ran damn hard with cpis! Imo if you looking for more of a broader power the cpi's will benefit you more on a 4cub. If your looking for mainly upper rpm power and over rev then shearer small bores.

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