Corvette Envy C5 HI-4 Harness for Headlights
The Corvette Envy C5 Hi-4 Harness (C5 Headlight Relay Harness) will allow your low beams to remain on with your high beams which allows you to double your headlight lumens. The harness includes a main fuse which is in addition to your existing headlight fuses so that you get double protection with this harness.
The Hi-4 harness installs in the under-hood fuse panel area in less than 5 minutes. All you need is a 10 mm and ½” socket wrench and a 3” extension. If you change your mind on this harness you can uninstall it and the Hi-4 harness leaves no permanent modifications on your C5 Corvette.
Take a look at our C5 Projector Headlights for an even bigger upgrade to your front lighting, and comes with complete new wiring harness that incorporates the Hi-4 functionality (no need for extra Hi-4 harness). Check them out here!
Note
This modification is designed specifically for rural highway driving or poorly-lit road use. Please keep other drivers in mind when using this light output modification. High beams are naturally aimed higher and will likely impair oncoming drivers.Installation
The Hi-4 harness installs in the under-hood fuse panel area in less than 5 minutes. All you need is a 10 mm and ½” socket wrench and a 3” extension. If you change your mind on this harness you can uninstall it and the Hi-4 harness leaves no permanent modifications on your C5 Corvette.
Optionally cut a small slot on the lid of your fuse box for the wires to enter the fuse box. This will keep your fuses cleaner with less dust than having the cover wide open.
C5 Four Hi Wiring Harness
The wiring harness was nicely made. Installation instructions were clear and easy to follow. This part works as designed. I am very p,eased with this purchase
United StatesC5 Hi-4 harness
Works great! Easy install. Only takes a few minutes. One of the simplest mods I have done to my vette.
United StatesHi4
Great product and support from Mfg. Works fantastic and easy instal