I have rebuilt my Challenge Lip 7 times due to potholes in the NE. New Jersey is the worst.
OP: Sorry, I can't recommend what springs to go with but when Bimmerworld installed my MC suspension, I told them to keep at the stock ZCP ride height because I couldn't handle rebuidling the Lip another 7 times. Current Lip clearance is 4" at center. I think my CF Challenge Lip has more bondo now than CF.
ESS VT-1 550 | M24 Oil Cooler | Fall Line Half Cage | RaceTech 4009W | 6 pt Harness | Rear Seat Delete | Motion Control DA Dampers w/remote reservoirs | 900/650 Hyperco Springs | RD Sport Sway Bars | Brembo 380 BBK | GC Camber Plates | Michelin Cups | GTS Black Wheels | Eisenmann Sport | Stack Gauges | Painted Challenge Front Lip | Painted ZCP Rear Spoiler | Xpel Ultimate Film | LuxAngelEyes
Last edited by CBS; 12-06-2012 at 01:28 AM.