Custom Heavy-Duty Tubular Fender Braces for V8 Miata (NA / NB)
Designed for serious engine swaps. These are custom-built, heavy-duty tubular fender braces made specifically for V8-swapped Miatas where chassis rigidity actually matters.
Why This Design
More mounting points for better load distribution
Tubular construction instead of stamped or sheet metal
Designed to be tied into a complete bracing system
Yes, the tubing is on the thicker side — and that’s intentional. When you’re running a V8 or other large engine, extra rigidity is not a downside.
Where This Really Matters
V8 or large engine swaps
Cars where the frame rails near the firewall were cut or notched
High-horsepower builds where flex becomes a real issue
In these cases, overbuilding is better than underbuilding.
Weight & Trade-Off
~10 lbs per brace
About 10 lbs heavier total than common aftermarket options
On a 400–500+ hp setup, an extra 5–10 lbs up front isnegligible compared to the added strength and peace of mind.
Recommended Use
✔ V8-swapped Miata
✔ Big engine swaps requiring chassis modification
✖ Not intended for stock or lightly modified cars
If you want a brace that looks solid, feels solid, and is actually built to do something — not just fill space in the engine bay — this is it.
