Interchangable upper pulley
its basically the same as the metco upper pulley. but the metco has four bolts where the ESM only has 3. I'm not sure if that makes that much of a difference but a little extra never hurt.
I've been asking SCperformance about there blower porting and polishing they have, supposed to be good for 25% percent increase in boost. I doubt it but we'll see.
I've been asking SCperformance about there blower porting and polishing they have, supposed to be good for 25% percent increase in boost. I doubt it but we'll see.
its basically the same as the metco upper pulley.
What about construction? Are they billet? Install tools?
Found some Thunderbird info from ESM's website, but nothing Lightning specific.
http://www.embreemachine.com/PartsSC...lleySetASE.htm
http://www.embreemachine.com/PartsSC...lleySetASE.htm


