Are these underdrive lightweight pulleys worth it, had anyone got real world experience with them?
Specifically interested in the 2 pulleys that underdrive the water pump and power steering pump.
I have chucked out 100kg / 220lbs out the E46M, deleted the clutch fan - I noticed engine revs slightly freer and got 3.91cwp. Thinking of ways to free up some ponies to the wheels before stepping into the lightweight flywheel/clutch department.
Specifically interested in the 2 pulleys that underdrive the water pump and power steering pump.
I have chucked out 100kg / 220lbs out the E46M, deleted the clutch fan - I noticed engine revs slightly freer and got 3.91cwp. Thinking of ways to free up some ponies to the wheels before stepping into the lightweight flywheel/clutch department.

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