Good-Win Racing Mazda Performance Parts

Progress Technologies MX5 FRONT and REAR AntiSway Bar Combo


Fiat 124 2017 · Suspension · Sway-Bars

Part Number: 61-1784F

Application: 2017

Price: $394.00


Progress Technologies MX5 FRONT and REAR AntiSway Bar Combo
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These Front and Rear PROGRESS MX5 Miata sway bars were developed on our own 2016 Project MX5 with all our racers here driving the car at the limit at local SCCA events to perfect the balance and test the bars at the limit...and work perfect on the Fiat 124. A perfect match for our Progress Springs to make your Fiat 124 corner flat and stable through the most challenging turns!

Progress MX5 anti-roll bars dramatically improve handling. How? They minimize the traction-robbing body "lean" that rolls part of the outside tires off the pavement. Our Sport-tuned Anti-roll Sway bars replace skinny OEM Sway bars and rubber bushings with larger diameter (stiffer) alloy steel bars and polyurethane bushings.

More roll stiffness means less body "lean", and the tires stay flatter on the pavement (larger contact patches). The result is more grip and added driver control!
-Less body roll means more traction, faster cornering speeds, and increased driver confidence.
-Polyurethane bushings produce crisp response on turn-in. Progress Anti-roll bars are cold-formed in-house using custom-built precision bending equipment. Laser-cut and CNC bar ends are MIG welded in place using a precise fixture for an exact fit that is more durable than alternatives used by some other choices.

-Size: FRONT 28.5 mm (hollow bar; 6.35mm side-wall)
-Size: REAR 17.5 mm SOLID
-Adjustment Range: Front 3 holes, Rear 2 holes
-All sway bars are powdercoated metallic gray.
-One year limited warranty

BRIAN'S APPLICATION NOTES. Our Endlinks recommended to properly reach all the front bar holes. With these bars the Fiat 124 is so much more flat and stable...and a blast to drive on freeway on-ramps and mountain roads! These bars are finished off MUCH nicer than most choices, in some ways that will not be obvious from the little photos. Perhaps the most obvious difference between these bars and any other brand is the triangle shaped extra brackets you see in the pictures. If you look at the factory rear sway mounts the purpose will be immediately clear, because you will see that not all four of the factory rear mount corners are actually connected/supported. It brings back memories of what Mazda did with the NA/NB front sway mounts, where failure of the factory mount became so common that we had to offer a complete replacement mount (and Racing Beat offered 'blocks and bolts' for that generation to reinforce the factory mount to avoid it breaking). Very similar here, because the factory rear sway mount is not actually connected all four corners we provide the brackets that fully box the mount. First picture below is the factory mount not supported on one side, and then second picture showing our bracket in place that fills the gap to fully box the mounts for long term strength and reliability.

SETTNGS: I strongly caution and suggest a more forgiving starting position such as middle or tightest position front (tightest is closest to center of bar) and the less tight rear setting (hole nearest bar ends) until you have some experience with the setup under controlled circumstances (such as an autocross event or big parking lot).

Autocross Tested by the Entire Good-Win Racing Team!

Track Tested by the entire Good-Win Racing Team at Mazda Raceway Laguna Seca!

Video below shows our ND in first two sweepers of Autocross event at full throttle and you can see it is much more flat in the turns than stock thanks to Progress Sways and Progress Springs.
*** Product images may differ from actual product appearance ***


RE: RoadsterSport Stainless MX5 Miata Midpipe Part# 60-1328: I love the mid-pipe!! Not only is it beautiful, but it makes the sounds coming out of the 'race single' exhaust even better. The two go well together, and it mellows the decel drone a lot. I'm very happy with my purchase.

-- Pat R.

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.