Good-Win Racing Mazda Performance Parts

Adaptronic NB8B and NB8C Miata Select ECU


Miata 1990-2005 · Engine · Diagnostic and ECU

Part Number: 61-1485

Application: 2001-2005

Price: $1,349.00


Adaptronic NB8B and NB8C Miata Select ECU
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All Adaptronic Plug-In Select ECUs are sold with a base map to get the car running, so all you have to do is plug it in!

All ECUs in the Select range have an internal 4 bar MAP sensor, so you can simply run a hose from the barb on the ECU into the engine bay. You may retain the air flow meter if you wish, but MAP sensing is required for most forced-induction applications.

Although these ECUs are plug-and-play, you still have the freedom to configure and tune the ECU as you wish, using the user-friendly WARI tuning software. Pinout tables are provided for all Plug-In Select ECUs, so you know exactly what each input and output is connected to on the engine.

*** Product images may differ from actual product appearance ***


After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected. After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap. I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.

-- Ron P.

Wanted to say thanks. The exhaust system fit perfectly, no drone at steady throttle, but a nice sound winding thru the gears. And it does sound a lot like my old Alfa. The Racing Beat lowering springs are just right. Appreciate the tech advice and the service.

-- Todd