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FAST Rings Kit – Pair

SKU FASTRINGS Categories ,

Fast Rings kit increases speaker output, improves the projection of the audio into the car cabin and reduces unwanted rear reflections that can degrade the sound.

Estimated delivery dates: Jun 19, 2026 - Jun 24, 2026

Overview

• Comes in Pairs

• Fits 6″, 6½” or 6¾” speakers
• Reduce panel vibration
• Increase mid-bass response
• Enhanced audio output efficiency
• Easy installation with peel-and-stick application

Specifications

Automotive-grade, high-rebound open-cell polyurethane acoustic foam. Adhesive Style: Heavy-duty, pressure-sensitive self-adhesive backing for instant peel-and-stick deployment. Mechanical Loss Benefits: Visibly reduces structural sheet-metal and plastic panel vibrations caused by active mid-bass cones. Acoustic Yield: Increases overall mid-bass response and heightens front soundstage efficiency by eliminating cross-cavity wave cancellation.

Key features

Matched Stereo Pair: Packaged as a complete 6-piece kit (3 matching structures per speaker) to fully treat both the driver and passenger door positions at the same time. Front Funneling Collar: Forms an airtight foam extension tunnel between the speaker face and the factory interior door panel, focusing 100% of forward audio energy straight into the cabin. Rear Sound Absorption Pads: Adheres directly onto the bare metal outer skin behind each speaker magnet to swallow rear-firing waves, neutralizing reflections that cause muddy sound.