The St-45 has a higher friction and more aggressive then the 43's. After twice on the track I got to see there potential and it's fierce....more then I need at my current stage. Great pads hands down and I won't ever see myself using another brand.

RSR down springs with the rear springmount cut 1/2"

instead of the local guy coming to look at it i can buy it tonight

Hey bro, what was/is your z lowered on, when it had the sbc rpf1s?

Thanks, Jordan