SKU: 16372188945

1990-1991 Miata Diffuser Brackets

Sale price$26.10 Regular price$29.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

1990-1991 Miata Diffuser Brackets1990 1991 Diffuser Brackets Bring track inspired performance and quality craftsmanship to your build with the 1990 1991 Diffuser Brackets by R Theory Motorsports. Designed for enthusiasts who demand function, form, and reliability, this component is engineered to integrate cleanly with your chassis and stand up to hard driving. Key Features High quality materials and precise manufacturing from R Theory Motorsports Optimized design for improved

1990-1991 Diffuser Brackets

Bring track-inspired performance and quality craftsmanship to your build with the 1990-1991 Diffuser Brackets by R Theory Motorsports. Designed for enthusiasts who demand function, form, and reliability, this component is engineered to integrate cleanly with your chassis and stand up to hard driving.

Key Features

  • High quality materials and precise manufacturing from R Theory Motorsports
  • Optimized design for improved performance and durability
  • Vehicle-specific fitment for a clean, OEM+ style install
  • Compatible with both spirited street driving and track days
  • Pairs well with other R Theory aero, chassis, and suspension components

Typical Use & Application

This Rear Diffuser is ideal for drivers who want a functional upgrade that also elevates the look of their vehicle. It is a popular choice among Miata and track-focused builds, time-attack cars, and dedicated weekend warriors.

StaticStore x R Theory Motorsports

  • Authorized R Theory Motorsports dealer
  • Genuine R Theory parts only – no knockoffs
  • Backed by the StaticStore customer support team
  • Secure checkout and hassle-free returns policy

Shipping & Lead Time

Most R Theory Motorsports products are built in small batches. Typical lead times are 1–3 weeks depending on inventory. If you are on a tight deadline, contact us before ordering and we can confirm current stock and ETA.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16372188945

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4.2 ★★★★★
Based on 9 reviews
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TC in So. Cal.
Charlottesville, US
★★★★★ 2
Too short
Size: Medium, Color: White
Fit was okay, but the length was too short. I am 5'5" and if I tuck the shirt into my shorts or pants and raise my arms above my head, the shirt will pull out from my waistline/belt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
P
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Philly
Whiting, US
★★★★★ 3
Too loose
Size: Large, Color: Brown
The size ran too big/loose. For example, it you tend to wear Large, order a Medium for this instead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
james doughton
Phoenix, US
★★★★★ 5
great value
Size: Small, Color: Dark Blue
excellent
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Reviewed in the United States on February 14, 2026
G
Verified Purchase
Gram2Four
Bozeman, US
★★★★★ 1
Construction is quite inferior and it stays badly wrinkled
Size: X-Large, Color: Dark Blue
Inferior construction. The mock turtle neck did not stay up but folded over.
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Reviewed in the United States on May 4, 2026
S
Verified Purchase
Susan K Anderson
Los Angeles, US
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
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Reviewed in the United States on June 4, 2026

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