Straight, for big valve engines, peak RPM drops about 400 RPM, but gains major increase in bottom end torque, will not build excessive heat, two stages, muffler end (MO).
(1.025 ID 8.75" IL)
OP-M
SKU: OP-M
$45.00Price
top of page
bottom of page
Straight, for big valve engines, peak RPM drops about 400 RPM, but gains major increase in bottom end torque, will not build excessive heat, two stages, muffler end (MO).
(1.025 ID 8.75" IL)