TRQ Rear Performance Brake Rotors Set Compatible with 1990-1993 Mazda

In this review of the TRQ Rear Performance Brake Rotors Set, the bottom line is simple: these rotors are for Mazda Miata owners who want a direct-fit, OE replacement that looks and performs better than stock. The reviewer found the cross drilled and slotted, G-coated discs deliver a noticeable improvement in braking feel and appearance while remaining an affordable aftermarket option. Installation is straightforward for anyone comfortable with basic rear brake service, and the vehicle-specific fitment removes guesswork for 1990-1993 Miata rear applications.

Key Features

• Direct Fit: Sold as a vehicle-specific rear rotor set so owners get a hassle-free replacement that matches factory mounting and bolt pattern.
• G-Coated Surface: The protective G-coating helps resist corrosion and keeps the rotors looking cleaner over time compared with raw cast iron.
• Cross Drilled & Slotted: The drilled and slotted design aids in heat dissipation and helps evacuate gases and debris for more consistent braking under load.
• OE Replacement Quality: Marketed as an OE replacement disc brake rotor set with compatible dimensions for direct swap without modification.
• Complete Rear Kit: Includes driver and passenger side performance rotors so both sides are matched for balanced braking and simplified installation.

Who It's For

The TRQ rear rotor set is best suited for owners of 1990-1993 Mazda Miata who want an upgrade over worn stock rotors without changing calipers or other brake hardware. Enthusiasts who value improved heat control and a cleaner appearance from the G-coating will appreciate the cross drilled and slotted surfaces.

It is not the ideal choice for owners needing front rotors, those requiring an ABS tone ring, or drivers seeking a race-only rotor; this is a street-oriented performance replacement intended as a direct-fit rear kit.

Pros & Cons

Pros

• Good fit and finish that matches factory mounting points for a straightforward swap.
• Improved braking feel and functionality thanks to the cross drilled and slotted surface design.
• G-coating reduces surface corrosion and maintains appearance longer than plain cast iron.
• Pre-installed bearing races and included both sides make installation faster and provide value for money.

Cons

• Durability reports are mixed, so long-term wear performance may vary depending on driving style and environment.

Specifications

Vehicle Fitment	1990-1993 Mazda Miata rear
Outside Diameter	231 mm (9.09 in)
Nominal Thickness	0.35 in (9 mm)
Discard Thickness	0.31 in (8 mm)
Mounting Bolt Circle Diameter	100 mm (3.94 in)
Stud/Lug Hole Quantity	4
Material	Cast Iron

Our Verdict

The TRQ rear performance rotor set is a sensible upgrade for 1990-1993 Mazda Miata owners who want improved braking performance and a cleaner appearance without modifying other brake components. It is good value for those replacing rear rotors together and offers straightforward installation, though buyers should be aware that long-term durability can vary with use.

Frequently Asked Questions

Do these rotors fit my Miata?
Yes, they are a vehicle-specific rear rotor set for 1990-1993 Mazda Miata; always double-check the listing fitment before ordering.

Are ABS tone rings included?
No, these rotors do not include an ABS tone ring and are conventional rear rotors.

What comes in the kit?
The kit includes one driver side and one passenger side G-coated performance brake rotor for the rear.