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SkidNation Butterfly Chassis Brace

2 Reviews


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BOFI Racing Recommended – Made by SkidNation

The definitive solution for improving the MX5 chassis, the SkidNation Combo brace coupled with updated suspension and a structural roll bar offers one of the best handling packages available.

Your MX-5, Miata or Eunos build is not complete without a set of SkidNation frame rails or Combo package.

Main benefits:

  • Adds rigidity to the monocoque, allowing the suspension to perform as intended.
  • Strongly recommended upgrade with uprated suspension (GAZ, Meister R, HSD, BC, etc.) as the additional forces involved highlight the chassis flex.
  • Eliminates door rattles and roof squeaking over bumps and rough roads.
  • Protection for your undercarriage from speed bumps and other obstacles.
  • Provides a secure and strong jacking point on the chassis rails – no more damage caused by lifts!
  • Benefits realised on the first drive – a ‘night and day’ difference on some cars.

Key features:

  • Simple and strong 3-piece design (vs. the 5 piece Flyin’ Miata design). The most structurally sound piece on the market with the least points of flex or failure.
  • Bent edges and engineered areas of strength to maximise the benefit without adding weight.
  • No side cut outs, maintaining strength and rigidity.
  • Bottom cutouts – triangular for additional strength compared with circular designs. Allowing water to escape from the chassis rails.
  • 35 mm height-adjustable centre section to clear all stock and most off the shelf aftermarket exhausts / manifolds.
  • Stainless fittings provided with nyloc nuts for longevity and safety.


  • 2 mm laser-cut matt stainless steel (SAE 304)
  • All fixings in stainless steel (grade A2-70)
  • Total weight 14 kg
  • Installation guide included

“I wasn’t expecting such an improvement given that I already have a roll bar and door bars fitted. I tested driving over a few manholes and dodgy tarmac that used to have the car shaking and crashing. Now it feels much quieter and a lot more solid. Very pleased!”

Weight 14 kg
Dimensions 115 × 50 × 25 cm


2 reviews for SkidNation Butterfly Chassis Brace

  1. deanedwards2013 (verified owner)

    Not fitted onto the car as-of-yet, but the quality of the kit is exceptional. All parts are made to a very high standard, welds are very strong, full stainless hardware with spares incase some bolts get lost, well packaged to prevent damage and a very detailed and clear instruction booklet. Cant wait to fit to the car and make it feel like new. Highly recommend for anyone looking for a quality unit that wont break the bank.

  2. bmrcarmona

    The MK1, MK2 and MK2.5 despite having more or less strengthening OEM bars lack chassis rigidity. Installing the Skidnation Butterfly chassis brace was the first modification that I made to my MK2. And it transformed the car, it now feels one car, not two subframes linked with spaghetti. I still think that if I only could do a modification to my car it would be installing this butterfly brace kit. Fundamental before installing harder springs, particularly if you don’t have a rollbar

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Make Model Year
Mazda MX-5 1989 - 2005

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