Strut Tower Bar and Master Cylinder Brace for Mazda RX-7 (FD3S), Right Hand Drive

Out of stock
SKU: SMA-202
Regular price $499.00
Designed for Vehicles / Universal (no vehicles listed)

Improved Racing designed this lightweight, solid aluminum strut tower bar for maximum engine clearance. These strut bars feature an optional adjustable brake master cylinder brace which solves the common firewall flex issue in the RX-7 for improved brake feel and performance. The brake master cylinder brace is compatible with both the factory and 929 brake master cylinders.

Fabricated from solid 6061-T6 aluminum and MilSpec Type II anodized in black, this strut bar is the strongest and most durable on the market.

Product Highlights

  • Brake master cylinder brace prevents firewall flex, improving brake feel
  • Billet machined master cylinder brace works with both the factory and 929 brake master cylinders (shorter screw is included for 929 MC)
  • Provides approximately 7/8" more engine clearance than the factory strut bar
  • Locates the bar approximately 1" further toward the rear of the vehicle compared to the factory strut bar
  • Approximately 1/8" minimum clearance between bar and factory hood
  • Bar is solid, not hollow, making it stiffer than any other bar on the market
  • Works with 13B and 20B engines
  • Clears 2JZ swaps
  • Works with GM LS-series V8 engine swaps. Verified to clear LS1, LS3, LS6 and FAST 92mm intakes (will not clear FAST 102mm intake)
  • All 6061-T6 aluminum construction, including end-plates for complete assembly weight of less than 4.5 lbs
  • MilSpec Type II anodized in black for extra durability and oxidation prevention
  • Lifetime Warranty
  • Made in the USA


  • 1993-2002 Mazda RX-7 with stock engine, 20B, 2JZ, or most V8 engine swaps


Part #
Primary Material
6061-T6 aluminum
Type II Anodized
Improved Racing