Product Description
A diffuser works in conjunction with the other aerodynamic components of a car to help produce downforce. Because the car pushes air as it moves forward, the air molecules at the rear of the car are disturbed, creating a vacuum of low-pressure air. To channel the high-speed airflow coming from under the car, the diffuser redirects the high-speed airflow to smoothly transition into the low-pressure vacuum at the rear. This allows the airflow under the car to become smoother, increasing the performance of other aerodynamic components such as aerodynamic wings.
- Pre-preg carbon fiber manufacturing process
- Version 1 Diffuser (without undertray)
About APR Performance
Since 1999, APR Performance has been manufacturing high-quality aerodynamic performance products for the automotive aftermarket industry.
Vehicle Fitment- 2014 Chevrolet Corvette Stingray
- 2014 Chevrolet Corvette Z51
- 2015 Chevrolet Corvette Stingray
- 2015 Chevrolet Corvette Z06
- 2015 Chevrolet Corvette Z51
- 2016 Chevrolet Corvette Stingray
- 2016 Chevrolet Corvette Z06
- 2016 Chevrolet Corvette Z51
- 2017 Chevrolet Corvette Stingray
- 2017 Chevrolet Corvette Z06
- 2017 Chevrolet Corvette Grand Sport
- 2018 Chevrolet Corvette Grand Sport
- 2018 Chevrolet Corvette Stingray
- 2018 Chevrolet Corvette Z06
- 2019 Chevrolet Corvette Z06
- 2019 Chevrolet Corvette Stingray
- 2019 Chevrolet Corvette Grand Sport
- 2019 Chevrolet Corvette ZR1
A diffuser works in conjunction with the other aerodynamic components of a car to help produce downforce. Because the car pushes air as it moves forward, the air molecules at the rear of the car are disturbed, creating a vacuum of low-pressure air. To channel the high-speed airflow coming from under the car, the diffuser redirects the high-speed airflow to smoothly transition into the low-pressure vacuum at the rear. This allows the airflow under the car to become smoother, increasing the performance of other aerodynamic components such as aerodynamic wings.
- Pre-preg carbon fiber manufacturing process
- Version 1 Diffuser (without undertray)
Before Ordering
〇Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇Confirmation of Fitment
All product databases are based on North American vehicles (USDM). Please confirm before ordering whether the product can be installed on a Japanese vehicle (JDM). (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will check for you.)
If you place an order without confirming fitment, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our top page, it does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○Regarding Shipping
Shipping costs are paid at the time of payment. Estimates for shipping costs are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping amount and the actual shipping cost. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please contact us to check delivery times in advance. Note that all products are transported by air; they are never shipped by sea freight.
○Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are basically all designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese vehicle inspection system," and we cannot provide strength calculation documents or similar items for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packing box or the product. Please understand that we will only provide returns, refunds, or replacements for products with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Please note that for products sold through us, warranty support will be handled "exclusively through us." We do not provide support through other companies or agencies located in Japan.