The EBC Ultimax2 UD1281 is a rear disc brake pad set for the 2007-2013 Acura MDX 3.7. The manufacturer describes the Ultimax2 as a non-metallic pad with zero steel fibre, positioned as a direct OE-equivalent for general replacement use on cars and SUVs. Its red Brake-in surface coating is meant to speed up bedding after installation.
Compared with stock or a budget pad, the case for this one rests on certification and friction data. The manufacturer cites ECE R90 approval for legal public-road use in European markets, a US SAE J2975 "N" environmental rating, and a GG friction rating. It also claims better cold bite and a progressive pedal feel from the first application. Because the compound is non-metallic, the manufacturer says it is far less abrasive to cast iron rotors, which helps protect the rotors you already have.
Fitment is specific to this generation, so confirm your MDX is a 2007-2013 3.7 before ordering. Rear pad work on these MDX models is more involved than a basic caliper swap, because the parking brake uses small drum shoes built into the rotor hat. Owners on user forums report that the rotor can stick to those parking shoes, which must be backed off through the adjuster wheel behind the hub before the rotor comes off. Seized rotor retaining screws and rust on the caliper slide surfaces are also commonly reported, so plan for penetrating oil, wire brushing, and caliper grease during reassembly.
The manufacturer states the Ultimax2 is ECE R90 approved, which it says makes it legal for public highway use in European markets. The manufacturer does not address legal status in other regions, so confirm local requirements before installing.
Owners on user forums report that the parking shoes inside the rear rotor hat can grip the rotor, so the adjuster wheel behind the hub often needs to be turned to release it before the rotor can be removed.
This is an intermediate job for a home mechanic with basic brake experience. You will need a floor jack, two jack stands, a lug wrench, sockets, a flathead screwdriver for the parking brake adjuster, penetrating oil, a wire brush, and a caliper piston tool or C-clamp. Owners on user forums commonly report that the rotor retaining screws may need penetrating oil and a few taps before they release. Before reassembly, clean rust from the caliper slide area and lubricate the slide pins. Confirm the parking brake adjustment and all torque specifications against the factory service manual before you drive the vehicle.
