Over the last couple years the priorities in my life have changed. Had Matrix Garage grown big enough to hire enough employees and leave them to running it while I pursued other things I would have happily taken that route but it has generally stayed just big enough to keep me working overtime. 
I have decided to start focusing my carreer and passions elsewhere and that means that supporting the AW, AE, 4A and related communities has had to be moved much lower on the priority list. I have decided to keep the store up to provide parts that only we offer, or other things that are hard to come by elsewhere. You will notice many big name, readily available products have been taken down and we will continue to do so. It's just not worth our time trying to compete with the big corporations selling at cutthroat prices and it just takes up more of my time. 
I will try to keep providing those parts that we make or that we have developed and sell as a service to the community but understand that now this is something I do in my spare time because I don't want to leave people hanging. 
I try to make shipments and process orders at least twice a week. If you want Amazon next day shipping buy from Amazon. I will do my best to keep order time and customer service at a reasonable level but have some understanding. I am not making money on this and it takes away from my other work and other issues that are very important to me right now. 
I have always wanted to make our designs and other information open source and available to the community but to do so properly would take a lot of time making sure that models and drawings were complete, accurate, or properly described. To go through everything and make sure it was something that I felt comfortable releasing to the community. I would love to find someone who was willing to help me do this. Someone in engineering school or passionate about this to help go through 3D scans, CAD designs, and information to prepare it. If you are interested feel free to email me. 





J&S Safeguard

Three models cover all applications including coil on plug, waste spark, or distributor ignition.  
SafeGuard "Universal" version for Distributor Ignition

Originally introduced in 1991, the J&S SafeGuard is still the world's only standalone individual cylinder knock control ignition. Many features have been added along the way. Click the link for a list of features and the instruction sheets.

SafeGuard "Interceptor" version for Direct Ignition

Interceptor is designed to trigger ignition modules or coils that have an internal ignition transistor, sometimes referred to as "smart coils". These include GM LS1, LS2 coils, and coils found on many newer imports such as Toyota, Nissan, Subaru, etc. These coils will have three or four terminals: 12v, dwell signal, and one or two grounds.

Controls up to eight ignition channels.

SafeGuard "Vampire" version for Direct Ignition

Vampire is designed for Ford, Chrysler, Porsche, BMW, or other DIS ignition that have access to the negative terminal of each coil. These coils are sometimes referred to as "dumb coils".

Vampire can also connect to the output of a multi-channel inductive ignition module.

Vampire installs by tapping into the coil negative signal of an existing inductive ignition system. No wires are cut and the factory system remains in place doing most of the work. The Vampire is active only during the retard angle.

Controls up to eight ignition channels.


Testimonials (screen shots of unsolicted comments from user forums)

Updated 04/24/2010

SKU Title Price
J&S-Universal Universal $595.00
J&S-Interceptor Interceptor $0.00
J&S-Vampire Vampire $0.00
J&S-Gauges J&S Gauges $0.00

courtesy of