The Nissan replacement clutch this time was MUCH more beefy than the last replacement one I got (same Nissan clutch kip PN too). One of the 4 springs came out of the clutch disc hub on the previous one at about 50K miles of use...this clutch disc has much bigger springs & much stronger/better spring holders in the hub. I know I will need a better grade clutch if I start to increase the HP much.