Hi my name is Bob and I have a problem. I collect trick race parts and thought I'd list some calipers I just have sitting. Brembo Left Side GP4-RX Nichol 108MM used $650 Brembo Left Side HP Nichol New with Pads 108MM $650 Galfer Billet Radial Mount Pair with Pads and Galfer Lines 108MM $700 PVM Monobloc Axial Mount 6 Piston Pair w/pads light Very Nice $700