• AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-GBKGloss jet black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black
  • AeroflowDynamics [15 - 21 Wrx/Sti] Rear Diffuser V1 - JDMuscleDiffusers and Vortex GeneratorsAFD-VA-AL-DIFF-V1-MBKMatte black

AeroflowDynamics

AeroflowDynamics Be the first one to review

Rear Diffuser V1

Fits: 15-21 WRX/STI

Finish
$49999
Earn $9.99 In JDMuscle Rewards!
Profile Avatar

Talk to an Enthusiast

Verify Fitment & Product Recommendations

M-F 9:00AM - 6:00PM

(866) 833-3536 Email Text (610) 735-6688Text
Ships When Available-Lead Time Applies
Pay over time available · Est. $15.62/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Katapult Affirm Klarna Shop Pay
View all options
Pay over time available · Est. $15.62/payment
ⓘ

Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Katapult Affirm Klarna Shop Pay
View all options
AeroflowDynamics Rear Diffuser V1
Fits: 15-21 WRX/STI
Be the first one to review

Other diffusers and vortex generators for 15-21 WRX

See all 31

Fitment

Please Note: Fits 2015-2021 Subaru WRX/STI. AeroflowDynamics V1 rear diffuser; aerospace-grade lightweight aluminum (no ABS plastic); fully CNC-machined, powder-coated; pre-drilled with hardware; Made in USA. Made to order - 4-7 weeks lead time. Variants: Gloss jet black (AFD-VA-AL-DIFF-V1-GBK), Matte black (AFD-VA-AL-DIFF-V1-MBK).
  • 2015–2021 Subaru | WRX STI
  • 2015–2021 Subaru | WRX

Description

The AeroflowDynamics V1 Rear Diffuser for the 2015-2021 Subaru WRX/STI reduces drag and creates downforce by accelerating underbody airflow. Made from aerospace-grade lightweight aluminum with no ABS plastic, it is fully CNC-machined, powder-coated, pre-drilled, and ships with hardware. Made to order in the USA - please allow 4-7 weeks lead time.

  • Fits 2015-2021 Subaru WRX/STI
  • Aerospace-grade lightweight aluminum - no ABS plastic
  • Fully CNC-machined and professionally powder-coated
  • Pre-drilled with hardware included
  • Made to order - please allow 4-7 weeks lead time
  • Fitment guaranteed
  • Made in the USA
  • Professional installation highly recommended

Shipping and Delivery

Review our Shipping Policy for delivery details, shipping costs and exclusions.

Warranty and Support

For AeroflowDynamics warranty information, contact our support team.

Return and Refund

Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.

Proposition 65

Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov