How to Replace Your FD3S Arm Rest with a 99Spec Unit

By Garage Alpha: Titanium Hood Props, Carbon Fiber Door Sills ... | Published: 2026-10-20

Category: How-to Guides

Learn to swap your FD3S ashtray for the JDM 99Spec arm rest. This guide covers removal, installation, and tips to avoid common mistakes.

Quick answer

Replace your FD3S arm rest by removing the OEM ashtray and installing the JDM 99Spec Arm Rest—a direct swap that adds storage and improves ergonomics. This guide walks you through each step and highlights common mistakes.

Why the 99Spec Arm Rest is Worth the Swap

The OEM ashtray in the FD3S is nearly useless for modern drivers. The 99Spec Arm Rest replaces it with a padded armrest and a storage compartment, making the center console more functional. It's a popular JDM interior upgrade because it's a genuine Mazda part, so fitment and finish match the factory quality.

The swap is straightforward, but you'll need to handle a few clips and screws carefully. The main tradeoff is losing the ashtray—if you actually use it, this isn't the upgrade for you. Otherwise, the added storage and comfort make it a worthwhile change.

Step-by-step installation

Gather tools and parts: You'll need a Phillips screwdriver, a trim removal tool (or a flathead screwdriver wrapped in tape), and the new 99Spec Arm Rest. Make sure the part is clean and free of any shipping debris. Check that the arm rest includes all mounting hardware before starting.
Remove the OEM ashtray: Open the ashtray lid and remove the two screws visible inside. Then, gently pry the ashtray assembly out using the trim tool, starting from the rear edge. Work slowly to avoid breaking the clips that hold it in place. If the ashtray feels stuck, double-check for hidden screws—don't force it.
Disconnect any wiring (if present): Some FD3S models have a power socket or illumination wiring near the ashtray. If present, unplug the connectors carefully. If your car has no wiring, skip this step. Note the connector positions so you can reinstall them correctly if needed.
Install the 99Spec Arm Rest: Align the new arm rest with the mounting holes and press it into place. Secure it with the screws you removed earlier. Ensure the storage compartment opens and closes smoothly. Tighten screws gently to avoid stripping the plastic threads.
Test the fit and function: Rest your arm on the pad to check ergonomics. Open and close the storage lid a few times to confirm it operates without binding. If anything feels loose, recheck the screws and alignment. A properly installed arm rest should feel solid and not wobble.

Product facts

Mazda RX-7 [FD3S] JDM 99Spec Arm Rest: The JDM 99Spec Arm Rest replaces the OEM ashtray with an armrest and storage compartment. It improves ergonomics and adds practical storage, making it a direct upgrade for your FD3S center console.
Mazda RX-7 [FD3S] JDM 99Spec Arm Rest