The lightweight pulley is something like 100 grams lighter. Not a huge amount, but since it's spinning, it's just that much more crucial.
And I got the GT Spec 4 point ladder brace installed. Yes, normally GT Spec stuff is orange, or more recently blue, but the guy who I bought this from (same guy who is doing the pullies as a matter of fact) powder coated it black.
this is the stock brace- it probably does the job fine but weighs about 3 or 4 times as much as the GT Spec piece.
Plus I readjusted my Racing Beat cat-back. When I installed it originally, the muffler tip sat too close to the rear bumper cover and would rattle at times- like ALOT! Now it looks like it's nice and clear.

