Black Friday - 20% off Most FSPE Made Products
Save 20% on performance auto parts and mounts.
Expires Nov 17, 2026.

fsperformanceengineering.com
10 offers to explore · Updated
SAVE ON YOUR NEXT ORDER
Common FS Performance Engineering codes from the offers we've collected, shared for reference only. A code isn't guaranteed to work, so check the offer's terms at checkout.
Shop at fsperformanceengineering.com →Save 20% on performance auto parts and mounts.
Expires Nov 17, 2026.
Save 5% on your order today at FS Performance Engineering.
Save 10% at FS Performance Engineering.
Save 15% on all purchases at FS Performance Engineering, plus explore even more items.
Save 11% on intake systems, brake upgrades, and more. Shop at FS Performance Engineering today for great deals.
Save 10% on your first order. Plus, check out other popular picks.
No offers match this filter.
Past promotions for reference. These offers may no longer be redeemable.
COOLANTCOVER21Redeye3KSALE7WDUO17CHECK20Checkout screenshots supplied by the collected source. Historical results do not guarantee current availability.
| Code | Discount | Offer | Expires |
|---|---|---|---|
| PREBLACKFRIDAY | 20% OFF | Black Friday - 20% off Most FSPE Made Products | Nov 17, 2026 |
| THANKYOU | 5% OFF | Save 5% on Applied Across Your Order | See merchant |
| DLCHECKQTN | 10% OFF | Save 10% | See merchant |
| 5OFF10 | Up to 5% OFF | Shop fsperformanceengineering.com Products with Discounts up to 5% off | See merchant |
| CHECKMATE15 | 15% OFF | Save 15% on Your Cart When Using Checkmate | See merchant |
FS Performance Engineering, which also goes by FSPE, is a California manufacturer of aerodynamic components and performance auto parts. The company was established in 2010 and builds front splitters, rear diffusers and side skirts, with manufacturing kept in-house so engineering stays precise and quality stays consistent across the range. Its parts are aimed at Ford Mustangs, Dodge Challengers, Chevrolet Corvettes and other popular performance cars, and they serve enthusiasts who want a sharper look along with a functional upgrade.
Splitters, diffusers and side skirts are add-on body pieces that change how air moves around and under a car, and they also reshape the way it sits and looks.
Shipping is free to the lower 48 United States, and that applies to many products FSPE makes itself. Checkout accepts PayPal, Google Pay and Apple Pay. Unused splitter rods and edge trim can go back within 30 business days, and those same items can be exchanged, while a 15-day warranty covers the products.
Gift cards start at $5, can be loaded with any amount and used again and again. Military shoppers are offered a discount in recognition of their service. FSPE posts updates on Facebook, YouTube, Instagram, Pinterest and TikTok, and the full catalog is on its website.
Confirm current details directly with the merchant.
Codes go into the coupon code box at the FS Performance Engineering checkout; deals need no code.

Pick a code from the list above. Its details give the discount and any conditions, such as a minimum spend or an end date.
Select Show Code. A window opens with the full code, a Copy code button and a link to fsperformanceengineering.com.
Add your items at fsperformanceengineering.com, then paste the code into the coupon code box in your cart or at checkout.
Make sure the discount shows in the order total before you pay. If it does not, the order may not meet one of the code's conditions.
Yes. 3 of the 10 offers are for Black Friday or Cyber Monday, such as "Black Friday - 20% off Most FSPE Made Products".
Yes, FS Performance Engineering offers a military discount as a way of honoring those who serve, and shoppers can look into other options in the auto performance space as well.
Yes, gift cards from FS Performance Engineering begin at $5, and any amount can be loaded onto them so they can be used over and over.
Yes, FS Performance Engineering provides free shipping on many of the products it makes in-house, and it mainly applies to orders delivered within the lower 48 United States.
When a shopper signs up with FS Performance Engineering, a code for free shipping on orders over $200 within the lower 48 USA states is texted after sign-up. That code covers free shipping on qualifying orders, which is a handy way to save on delivery and have products arrive without additional fees.
On this page, 1 offer is for new customers only. A code also fails when the cart has excluded items or the promotion has ended.
PREBLACKFRIDAY gives the biggest discount on this page, 20% off. The biggest deal, up to 30% off, needs no code.
No offer on this page mentions a minimum spend.
2 of the 10 offers have an end date. The next to end is PREBLACKFRIDAY, on Nov 17, 2026. The others have no published end date.
30 business days.
Unused splitter rods and edge trim.
Unused splitter rods and edge trim.
15 days.
FS Performance Engineering accepts PayPal, Google Pay and Apple Pay.
Over the past year, 1 FS Performance Engineering code was collected, in Nov 2026. The most popular discount was 20% off, offered in Nov 2026.
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