Good-Win Racing Mazda Performance Parts

Hard Dog Bolt-In Door Bar


Miata 1990-2005 · Roll-Bars · Hard Dog

Part Number: 30-1027db

Application: 1990-1997

Price: $275.00


Hard Dog Bolt-In Door Bar
rating (0 Ratings)
rating (0 Ratings)

Thank you. You have rated this product.

The Bolt-In Door Bar is designed specifically to stiffen the chassis of your Miata. A torsionally stiff chassis will keep a more even load on all wheels to improve traction. The stiffer a chassis, the more likely the vehicle is to have even weight distribution on all tires which is favorable to cornering and superior handling. The Bolt-In Door Bar is easily installed in conjunction with any version Hard Dog Roll Bar with minimal interference for normal use of the car.

SHIPPING NOTE: These drop ship direct from the Hard Dog Factory and a flat rate shipping of $50 applies within USA lower 48 states for this particular bar.

*** 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