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FS Performance Engineering - NB Mazda Miata "The Monstrosity" Rear Diffuser
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering
Zoom NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser - FS Performance Engineering

NB (1999-2005) Mazda Miata "Monstrosity Junior" Rear Diffuser

$479.00

NB Mazda Miata 1999 2000 2001 2002 2003 2004 2005 Monstrosity Junior Rear Diffuser

Two words describe this beast: Monstrous (Junior style) + Functional. That is why we've named this rear diffuser the "Monstrosity Junior.". Feel free to purchase this diffuser if you feel like standing out, making a statement, love the idea behind it, or simply want to improve how air flow exits the rear of your car.

Why this rear diffuser screams quality:

  • CURVED 6-foot radius profile (rolled aluminum, NOT a forced curve) 
  • Spans 46" between the rear inner tires
  • Real life flow testing confirms diffuser's ability to maintain a very good boundary layer
  • RAW ALUMINUM or POWDER COATED SEMI-GLOSS BLACK
  • CNC (Computer Numerical Control) Precision Laser Cut
  • High quality 14 gauge (0.065") 5052 aluminum construction
  • Mounting hardware + brackets SUPPLIED
  • Made in the U.S.A. 
  • PLEASE allow a 20-28 business day build time - it's worth it
  • We recommend further flattening the underside of your Miata for even better results (VIDEO RESULTS COMING SOON)

BOUNDARY LAYER WITH NO UNDERBODY FLATTENING