The sc trim is advertised as 5-6 psi blower and we all know what the s trim is capable of. What is the difference in the two head units? Is the S trim built with better parts. I know a guy that wants to buy a used sc and maybe put a 10lb pulley on it and I was curious if this is a good idea with that blower. The sc doesn't come with a by-pass valve, what boost level would require this.
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