Upgrade your firewall with the MDP Block-Off Plate, precision-machined from premium 6061 billet aluminum for maximum durability, clean aesthetics, and reliable protection. Whether you're blocking off unused ports or routing a harness through your firewall, this lineup has the perfect option for your setup.
⚙️ Options Available
Block-Off Plate (with O-ring seal)
Harness Hole Plate (with O-ring seal)
Diamond Milspec Plate (large opening, no seal) — ideal for Rywire & milspec-style connectors
✨ Key Features
6061 Billet Aluminum Strong, lightweight, and corrosion-resistant.
Clean Firewall Finish Blocks unused ports for a tidy, professional engine bay.
Sealed Protection (Non-Milspec Versions Only) The Block-Off and Harness Hole versions include an integrated rear O-ring seal, preventing water intrusion and keeping the cabin protected.
Milspec Plate Info The Diamond Milspec Plate does NOT include a seal due to the larger milspec opening. For this option, we recommend using silicone, RTV, or your preferred sealant for a watertight fit.
Designed for 96–00 Civic (EK) Also compatible with other chassis using the same firewall footprint.
Quick Install Bolts up easily with basic hand tools for an instant upgrade.
