Make an E-Z-GO Express S4 street legal
Kits listed for 2012+ models.
The short answer
1 street-legal kit is sold for the E-Z-GO Express S4. The cheapest priced set that covers the most of Florida's required equipment is $676.13 for a 2-seat cart and $703.13 for a 4-seat cart. A kit adds equipment, not speed: to be a low-speed vehicle the cart must also reach 20–25 mph.
Route 1 · Golf cart on local roads
Where your city or county has opened local roads to golf carts, it can drive there as a golf cart. Required (Fla. Stat. § 316.212): red reflectors front & rear, a rearview mirror, efficient brakes, reliable steering and safe tires — headlights, brake lights, turn signals and a windshield only if night use is authorized.
Check your county's rules →Route 2 · Low-speed vehicle (LSV)
Roads posted up to 35 mph. The full equipment list below, a top speed of 20–25 mph, a VIN, title, registration and insurance (Fla. Stat. § 316.2122). A kit brings the cart to LSV equipment level; only a factory LSV is FMVSS 500 certified.
LSV vs golf cart, explained →The LSV equipment plan, priced
The cheapest combination of priced kits that covers the most required items — sold for the E-Z-GO Express S4, plus universal mirrors and belts. Unpriced kits are never totaled. Seat belts must cover every seat.
2-seat cart (2012+ models)
$676.13
Cheapest priced set covering 6 of the 8 kit-supplied items · belts for 2 seats
- KEMIMOTO Side Mirrors w/ LED Turn Signals (Universal)$34.19
- 10L0L Seat Belt Kit w/ Bracket (2-Passenger)$56.99
- EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax) · fits 2012+$584.95
Not in any priced kit we list for this cart: Windshield, Red reflex reflectors — buy separately.
4-seat cart (2012+ models)
$703.13
Cheapest priced set covering 6 of the 8 kit-supplied items · belts for 4 seats
- KEMIMOTO Side Mirrors w/ LED Turn Signals (Universal)$34.19
- 4-Passenger Retractable Seat Belt Kit (Universal)$83.99
- EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax) · fits 2012+$584.95
Not in any priced kit we list for this cart: Windshield, Red reflex reflectors — buy separately.
Florida's LSV equipment list, item by item
What each kit's own listed contents supply. An item counts only when the listing names it — a turn-signal switch is not a turn-signal lamp.
| Required item | Supplied by |
|---|---|
| Headlamps | EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax) |
| Stop (brake) lamps | EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax) |
| Turn-signal lamps | KEMIMOTO Side Mirrors w/ LED Turn Signals (Universal) |
| Taillamps | EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax) |
| Red reflex reflectors | None of the kits we list for this cart — buy separately. |
| Parking brake | Not a kit item — your cart's own parking brake has to hold it on a slope. |
| Rearview mirrors | 10L0L Folding Side + Panoramic Rear Mirror KitKEMIMOTO Side Mirrors w/ LED Turn Signals (Universal) |
| Windshield | None of the kits we list for this cart — buy separately. |
| Seat belts | 10L0L Seat Belt Kit w/ Bracket (2-Passenger)4-Passenger Retractable Seat Belt Kit (Universal)2-Passenger Retractable Seat Belt Kit (Universal) |
| VIN | Not a kit item. A converted cart has no factory MCO, so titling one is a harder process than a factory LSV — ask your county tax collector before you buy parts. |
Equipment list: Fla. Stat. § 316.2122 · verified 2026-07-14
Kits sold for the E-Z-GO Express S4
EZ-GO Express S4 LED Ultimate Plus Light Kit 2012+ (MadJax)
Fits E-Z-GO Express S4 (2012+)
$584.95
- LED headlights & tail lights
- Automotive-style turn-signal stalk + steering column cover
- Dual 5V USB port (1A + 2.1A)
- Hazard switch & horn
- Mechanical brake switch w/ brake-light timer
- Wiring harness, hardware, templates; 12-48V w/ built-in reducer
Contents & price from the GolfCartStuff listing · verified 2026-09-27
Also needs a speed unlock to reach the 20–25 mph LSV band
Universal mirrors and seat belts
Sold as universal fit — check your cart's mounting points on the listing.
10L0L Folding Side + Panoramic Rear Mirror Kit
Fits most carts — confirm mounting points on the listing
$31.69
4.7★ · 950 reviewsAmazon customer ratings (owner-approved read 2026-07-19)
Buyers say · Customers find the golf cart mirror kit to be of good quality, easy to install, and offering excellent value. Moreover, the mirrors provide a better view behind the cart.
“…wide view beside and behind me. And it helps my cart look sexy.” — verified buyer review
- Pair of folding convex side mirrors
- 17-inch interior panoramic rearview
- All install accessories
Contents & price from the Amazon listing · verified 2026-09-25
KEMIMOTO Side Mirrors w/ LED Turn Signals (Universal)
Fits most carts — confirm mounting points on the listing
$34.19
4.4★ · 239 reviewsAmazon customer ratings (owner-approved read 2026-07-19)
Buyers say · Customers find the golf cart mirrors to be of good quality and easy to install, with bright visibility even during daylight hours.
“Fit, function, price, installation and appearance were great.” — verified buyer review
- Pair of 7x5.5-inch side mirrors
- Front + rear LED turn-signal lights
- Breakaway mounts, wiring, instructions
Contents & price from the Amazon listing · verified 2026-09-25
10L0L Seat Belt Kit w/ Bracket (2-Passenger)
Fits most carts — confirm mounting points on the listing
$56.99
4.4★ · 388 reviewsAmazon customer ratings (owner-approved read 2026-09-25)
Buyers say · Customers find the golf cart seat belt kit easy to install and appreciate its functionality.
“…works good and my four year old can buckle his belt while reminding me to do it as well.” — verified buyer review
- Steel mounting bar (33.86 in)
- Two retractable belts (47.64 in)
- Push-button buckles + hardware
Contents & price from the Amazon listing · verified 2026-09-25
4-Passenger Retractable Seat Belt Kit (Universal)
Fits most carts — confirm mounting points on the listing
$83.99
- Front + rear mounting brackets + hardware
- Two 45-inch + two 57-inch retractable belts
Contents & price from the Buggies Unlimited listing · verified 2026-09-25
2-Passenger Retractable Seat Belt Kit (Universal)
Fits most carts — confirm mounting points on the listing
$114.99
- Universal mounting bracket + hardware
- Two 45-inch retractable belts
Contents & price from the Buggies Unlimited listing · verified 2026-09-25
Frequently asked
- Can an E-Z-GO Express S4 be made street legal?
- In Florida there are two routes. Where your city or county has opened local roads to golf carts, a E-Z-GO Express S4 can drive there as a golf cart with red reflectors front and rear, a rearview mirror, and efficient brakes, reliable steering and safe tires (Fla. Stat. 316.212) — lights, turn signals and a windshield only if night use is authorized. To use roads posted up to 35 mph as a low-speed vehicle, it needs the full equipment list (Fla. Stat. 316.2122), a top speed of 20–25 mph, a VIN, title, registration and insurance.
- How much does a street-legal kit for an E-Z-GO Express S4 cost?
- For 2012+ models, the cheapest priced set of kits we list that covers the most required items is $676.13 for a 2-seat cart and $703.13 for a 4-seat cart (belts for every seat). No priced kit we list supplies windshield or red reflex reflectors, so budget for them separately.
- Does a kit make my E-Z-GO Express S4 an LSV?
- Not on its own. A kit brings a cart to LSV equipment level, but only a factory LSV is FMVSS 500 certified, and an LSV must also run 20–25 mph and carry a VIN. Confirm how your county handles a converted cart before you buy parts.
Different cart? Pick yours from every cart we have kits for. Weighing a conversion against a new cart? A factory-certified LSV arrives with the VIN, title paperwork and FMVSS 500 certification — price one out the door.