tune pipe

redneckracing674

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so i have this suzuki 125, with a giant exhaust port. its over 1.5 inches in diameter. if i got a pipe, for a cr125, would it be better for me to weld the smallest end on a plate, so it necks down, or cut it off where the pipe is about the right dia, and weld on a flange
 

Chainlube

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so i have this suzuki 125, with a giant exhaust port. its over 1.5 inches in diameter. if i got a pipe, for a cr125, would it be better for me to weld the smallest end on a plate, so it necks down, or cut it off where the pipe is about the right dia, and weld on a flange
What are you putting it on?
 

Mossy

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Cr 80... Kx 85 ... KTM sx65... The 50cc scooter pipes are going to be the best performance... A 125 is going to be huge... but I'm a noob with only 45 years building 2 strokes since I was a kid...
 
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