Good-Win Racing Mazda Performance Parts

Ground Control Miata Coilover Conversion 550/350


Miata 1990-2005 · Suspension · Coilovers

Part Number: 20-1067

Application: 1990-1997

Price: $429.00


Ground Control Miata Coilover Conversion 550/350
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Adjustable coil-overs allow easy adjustment of Miata ride height and the ability to adjust the weight at each corner. With this simple sleeve design, any shock can now be a race ready coil-over.

Ride height is adjustable from stock to 2" lower and more. All aluminum CNC manufacturing makes for light weight parts with smooth and precise adjustment. Performance shocks are recommended. Hardcore CSP kit, 90-97, Not Sport Suspension. These drop ship direct from Ground Control and they consider this spring combo a custom order spring rate which means you should assume about two weeks ordering time if we don't have it on shelf (feel free to ask).

Also, note that this non-standard rate Ground Control Kit is TOO MUCH spring for standard off-the-shelf Miata KONI sports or Miata KYBs or Tokicos. You can either use our Miata KONI RACE shocks which are on this website or you can have standard Miata Koni Sports re-valved for the purpose. TELL US IF YOU DON'T HAVE KONI SHOCKS!!!!

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


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

Purchased the RS Max Power header and midpipe. THESE ARE TRUELY A WORK OF ART! CRAFTMANSHIP IS TOP NOTCH!! SITE PICS DO NOT DUE JUSTICE TO THESE ITEMS! I recommend Brian's site to ANYBODY with a Miata/MX 5. Brian and Co have taken a great automotive platform and elevated it to it's FULL POTENTIAL!

-- David R.