RB's Upgrade Center allows you to "Progressively" upgrade your brake system without the risk (or need) of spending money on something you many not need.
Not only this is more budget friendly, but you can also find out the gain on performance improvement vs. the cost of your investment.
1. You purchase/upgrade to two piece rotors.
2. Later on if you feel you need more brake power, you can add aluminum calipers/adaptors to convert it to a full fixed piston caliper kit.
The upgrade center is only for customers who have previously purchased our rotors or OE caliper kits and would like to upgrade to our 4 or 6-piston calipers. We will verify your purchase history before processing any orders from the upgrade center. Please provide your previous order number, if available, in the comments section of the order. We do not sell our aluminum calipers separately.