Product: (3 Pack) Universal Firewall Boot - Safe and Convenient Firewall Grommet Kit Can Accommodate 3/8 Inch to 1 Inch Wire Bundles
Brand: TonGass
Color: Black
Installation is as straightforward as it gets. You just need to drill a 1 1/4-inch hole on your firewall. Trim the tapered end of your boot's according to the tubing/wire bundle's thickness and then feed the tubing/wire bundle through the grommet end of the firewall boot. Fit the grommet to the newly drilled hall on your firewall. The grommet end should snugly fit on the hole. The last step will be to secure the wire bundle by wrapping a zip tie by the newly trimmed end of the boot.  Take note to always double-check what's on the other side of the spot you are planning to drill into. There's a real risk of hitting the main wiring. Also, it is always advisable to drill a pilot hole on the firewall surface before proceeding. One of the best drill bits to use for this situation is a step drill bit.  Scared of drilling holes through your firewall? Most of the time, there are preexisting holes on your firewall that you can use. Most of these holes have sturdy seals but depending on your car model, there may be unused firewall opening hidden behind insulation or even under the carpet. There could also be a preexisting wiring loom that passes through the firewall. It's can be feasible to use this avenue but you risk damaging the wires on the loom and besides, you can't use a firewall boot on an already overcrowded hole. The risk of pinching the wires is high in this method. The best solution is to use an opening you can install a universal firewall boot into and most of the time, this means drilling a hole through your firewall.  The firewall insulation helps eliminate the noise coming from the engine. But once you drill a hole on the firewall and run wire through it, you're creating a weak link that will allow noise to pass through. That's why it's important to use a firewall boot that does not only prevent the wires from chaffing but also acts as soundproofing and weatherproofing seal.
SAFE AND CONVENIENT FIREWALL GROMMET KIT- Protect your wires from cuts and chaffing with this universal firewall boot. Perfect for cables, hoses, conduits, and power lines. These firewall boots are highly adjustable and reusable. You can easily trim to the next width if you need to add more wires. No need to drill another hole or buy another set of grommets!
TIGHT FIT FOR A SOUNDPROOF AND WATERPROOF SEAL - Don't settle on firewall boots that won't fit the wire bundle snuggly, allowing noises from the engine to pass through. These universal firewall boot's grommets have sturdy and thick collars that will tightly fit on the drilled hole. The universal-fit ensures that the wire bundles are tight no matter how thick or thin they are.
FITS A WIDE RANGE OF WIRE BUNDLE THICKNESS - This universal automotive grommet can accommodate anywhere from 3/8-inch to 1-inch bundles. You won't need to buy different-sized grommets for different applications, just trim the boot according to the bundle's thickness and secure it with a zip tie. It's simple, convenient, and most importantly, effective.
EASY, NO FUSS UNIVERSAL FIREWALL BOOT INSTALLATION - All you need is a 1 1/4-inch hole for installation, scissors or utility knife to cut the boot's tapered end according to the thickness of the wire bundle. From there, all you need to do is install the firewall boot on the drilled hole and run the wire through it.
HIGH-QUALITY PRODUCT - These firewall boots are using high-quality, weatherproof rubber. It is suitable for numerous applications not only on car firewalls but also in boats, trucks, and even machines that need that secure transition for wiring.

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