[Poodles]

Originally Posted by why?

If you think one isn't worth much then the other isn't either.

As someone who has had a 3 piece NST pulley kit, a lightweight flywheel and super light weight wheels on my Yaris for over 5 years, the change is dramatic in how fast the car revs, and because I am a gas mileage freak I get better gas mileage as well.

Now could a boxer be different? Of course, but if the stock engine can take all sorts of forced induction, then a pulley kit is not a big deal. I will say the NST pulleys are much more expensive than what is stock, and that is the main reason they would never do something like that oem.

Except one is SFI rated and is an actual damper while the other one is a hunk of turned aluminum...