Stewart Instruments, Inc.
PO Box 11929
Prescott AZ 86304
(928) 778-6988


Four Way Stop

Left Turn, No Brake

Right Turn, No Brake

Left Turn with Brake

Right Turn with Brake

Introducing the


Sequential Turn Signals
for 1996-2004 Mustangs

(except Amber Turn Signal Systems)


including Free Shipping, 
Pair of Brake and Tail Light Harnesses with built-in Sequencer. 
Installation Manual.
No Splicing, 
No Wiring. 
Small Wrench Installation. 


Brand New, Perfect FlameThrower  Sequential Turn Signal System for a 1996-2004 Mustang Coupe, Convertible or Fastback, GT with factory standard brake and turn signal lighting and wiring, except those with Amber turn signal systems

What you get is One Pair (one left side and one right side) of rear Brake and Sequential Turn Signal Harnesses. Wired in each harness assembly is our Sequential Turn Signal Controller.

The FlameThrower System comes with a super-easy Installation Guide, Wiring Diagrams and Mustang Brake & Tail Light System Troubleshooting Guide. The FlameThrower is dirt simple to install.

Saves you time by not having to splice or wire anything to install these harnesses on your Mustang. Simple Plug and Play painless installation. And the installation is completely reversible if you want to move it to another Mustang.

Installation is a snap: Remove your Brake Light Lens Assemblies, pull the connectors for each lamp from the lens assembly, install our harnesses, and reinstall lens assemblies. Done.

This is a small wrench operation, simply remove 4 nuts - No Wire Cutting, No Splicing into your system, Simply Plug and Play.

As a bonus, the FlameThrower Sequential Harness System actually adds another brake light function to you existing 2 brake light harness. Now you get 1/3 brighter brake lights along with your new Sequential Turn Signals. 

The FlameThrower is instantly reversible back to your original incandescent system, if you want to transfer your Sequential Turn Signals system to another vehicle.

Review the Sequencer Movie above. This is what your new FlameThrower Sequential Turn Signals will do for you.

NOTE: The FlameThrower Sequential Brake Light system is compliant in all 50 states (thanks to Thunderbird, Cougar, the new Mustang, and other production vehicles). If there is a question, before you buy check with your local transportation authorities. Don't spoil your driving fun with an equipment violation, if sequential turn signal lights are not approved in your local area! 

State DOT requires that a vehicle's brake light comes on and stays on as long as the brake pedal is pressed. Our system is compatible - a minimum of one brake light comes on and stays on (on each side), then the remaining two segments on each side sequence once and then remain on, until the brake pedal is released. . 

Should for any reason the Sequencer fail, our system is designed to light at least one brake light and all of the parking lights on each side - enough to get you home safely.

These FULLY TESTED units are being offered WITH A FULL 90-DAY PARTS REPAIR OR REPLACEMENT WARRANTY (our choice) ON THE SEQUENCER HARNESS. Customer is responsible for removal, installation and warranty shipping costs.

Sequential Tail Light Harness Set  
$124.95 including shipping 
for '96-04 Ford Mustangs

* Except Amber Tail Light Systems