Mazda RX-7 FD
Should I install an exhaust gas recirculation block-off plate on my Mazda RX-7 FD?
Updated June 2026
Based on the provided technical information, installing emissions block-off plates is a common modification if your emissions equipment, harnesses, and vacuum lines have already been disabled. Doing so allows you to completely remove the unused components, which will significantly clean up your engine bay and free up physical room around the engine 1.
If you decide to proceed, here are a few recommendations and installation tips:
Recommended Kits For the FD RX-7, two highly recommended options are the Banzai Racing Block Off Plates 3 and the IRP (IR Performance) Stainless Steel Blockoff Plates 1.
Installation & Sealing (Difficulty: Easy) When bolting the plates down to the engine, you do not necessarily need to purchase new gaskets. You have a couple of options for sealing them:
- Reuse Original Gaskets: You can safely reuse the factory metal gaskets as long as their rubberized coating is still intact. Be aware that if the original gaskets are paper, they will likely rip during removal 1.
- Use RTV: If the original gasket is damaged or dodging, clean the mating surfaces thoroughly and use a light smear of high-temp RTV sealant, such as Loctite 5900, to seal the plate 1.
This answer was generated by GarageBot's AI from enthusiast forum discussions. Always verify torque specs and safety-critical procedures against the factory service manual before working on your car.