Ok so I have heard mixed reviews, but would a grounding kit like this

http://gruppe-s.com/Subaru/subeng/hks_circ.htm

actually give anyone anything noticeable? I have heard that they are kinda BS...anyone have any experience with them? Not that I would want to waste my $ on one, but just curious :P.


One thing I AM concidering however, is a lightened pulley. While on the gruppe-s site, I noticed they had this kit

http://gruppe-s.com/Subaru/subeng/GFB_pulleykit.htm

which has the crank, alternator, and power steering lightened pulleys. Would it be worth it to get the kit? Or would I be best off just getting a lightened crank pulley and using that 100 or so on something else?

Thanks!

 

I had the SUN Auto Hot Inazma on my older car. There was a difference. I'm not sure if the car was faster, but alot of things seemed different, maybe a smoother.

 

I am curious why they would supply a belt for pulley's that are not under driven???

I have the Perrin Crank (to keep OEM belts) and it was a big improvement in quicker engine revs ~ just blipping the throttle was WAY different. That and the Borla headers were the improvements I felt the most on the 'butt dyno'.

The ground kit didn't make much of a diffrence ~ I think the older cars realize some changes. It would be hard to quantify the improvements. I do have a Paranoid Fabrications ground kit on my car. Even though I saw little change, I kept it on (what harm could it do?). His kits are A+ in materials and look sick... So, I guess it's just 'engine dressing'?