Services | Engines | Upgrades
We service all generations of the Mazda RX-7, RX-8 and vintage.We are experts in servicing the RX-7 and RX-8 and engines: 12A, 13B, 13B-MSP, 13B-REW, 20B and the monster 26B.
Located just outside of Columbus Ohio Defined Autoworks provides products to enthusiasts all over the world.
We are local to these surrounding areas:
Akron, Canton, Cincinnati, Cleveland, Dayton, Toledo, Zanesville Ohio, Steubenville, Pittsburgh PA, Lexington and Louisville KY, Detroit MI, Indianapolis IN and Wheeling WV.
We sell our own high performance parts and install products from other manufacturers as well. With decades of experience in servicing and racing rotary vehicles, we know how to get your RX to perform at its best.
We offer custom exhaust, suspension modifications, chassis modifications, and appearance items. All this so your Mazda performs to its capabilities and redefines your expectations of what can be achieved.
We hold the National records for horsepower for Naturally Aspirated (NA) rotary motors. We know how to get the most power, without compromising driveability or reliability.
There is no substitute for racing. We race our own cars, and from that experience continue to grow and expand our capabilities.
We are DEFINED AUTOWORKS - give us a call, we speak Rotary.
Owner | Fabricator | Tuner
Lead Mechanic | CAD Engineer
I brought in my Mazda RX7 GS and you guys transformed it! Logan did great clutch work and fixed the front suspension system. Logan knows his stuff. Have some more work in mind. 140 horses out of a 12A maybe? Looking forward to it. Thanks!Mazda Enthusiast, Graham L. | 1984 Mazda RX-7 | Gen 1
My 88 has always had an overheating problem in slow moving traffic. You found the problem and fixed it right away. Now my temp runs dead center. Wish I had done this a long time ago.Marlin E., Dayton, OH | 1988 Mazda RX-7 | Gen 2
My turbo never seemed to work right. Logan made some adjustments and rewired and resoldered many of the older wires that had been done before I got the car. I can't believe the diff. Thanks a million!James W., Cincinnati, OH | 2005 Mazda RX8
I have an older RX-7 which always had sloppy steering. I was really worried that it couldn't be fixed without costing me a lot of money. Well you fixed it and for a whole lot less than another shop. Will be back.Richard N., Pittsburgh, PA | 1979 Mazda RX-7 | Gen 1