Brakes
5 of 5 compatibility entries for Acura
Dual-piston front brake calipers (with larger rotors)
The Legend GS front calipers are dual-piston units and come as loaded assemblies, so they bolt to the 1G CL front knuckle without adapters. Pair them with the larger 11-3/32" (11.5") front rotors from a 1996 Prelude VTEC (part number 39796374R) rather than the smaller 10" rotor some applications used. Fresh front brake lines are recommended while the hydraulics are open. The Legend proportioning valve is not needed; the CL's existing brake balance was reported to work fine after the swap. This fitment applies to the 4-lug 2.3CL; other 1G CL trims may require different rotors.
TSX front brake kit (calipers, brackets, and rotors)
The 2006 TSX front calipers and brackets share the Civic's mounting geometry and bolt directly to the factory knuckle using the two bracket-to-knuckle bolts, so no adapter is required. Braided stainless front lines (e.g. Technafit for the 8th-gen Civic) connect to the caliper with a banjo bolt stacked copper washer / line / copper washer / bolt. Beyond the dust-shield clearancing, the main fitment catch is wheel clearance: the larger calipers foul the stock EX steel wheels. SI-style alloy wheels clear without help; otherwise a wheel spacer is required (one owner used 15mm spacers with EX steelies, the original builder ran 5mm). This upgrade addresses the undersized, warp-prone factory front brakes without the cost of a full aftermarket big-brake kit.