Bothered by a check engine light after installing an aftermarket cat-back exhaust system? Here's the solution! The C8 Corvette AFM Valve Simulator Modules from Fabspeed Motorsport will trick the factory valves and turn off your check engine light.
Direct plug-and-play with the factory valve harness and are easy to zip tie out of the way. Once plugged in, the C8's ECU is none the wiser that it has an aftermarket cat-back exhaust system attached and will not throw a CEL for AFM valve malfunction.
- Fits all 2020+ C8 Corvettes.
- Fixes AFM valve CEL (check engine light).
- Light weight.
- Durable 40% glass bead filled thermoplastic case can handle up to 175° C / 347° F.
- Simple installation, no cutting or soldering required.
- Fabspeed Motorsport USA has over 25+ years of experience with Porsche, Ferrari, Lamborghini, McLaren, Aston Martin, and other exotic cars.
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty.
This product is designed for the following years: 2020, 2021, 2022, 2023, 2024
Customer Care
Frequently Asked Questions
Q: Is my personal information kept private? Is it safe to use my credit card?
A: Yes, your personal information is kept private and it is safe to use your credit card.
Q: How much will shipping cost?
A: Unfortunately, the cost of shipping is a real expense. Our goal is to minimize your shipping costs. Shipping is calculated at checkout based on the items in your cart and will be displayed prior to you placing an order. Please note that oversized items may be subject to additional charges, which will be noted on the product page.
Q: How do I track my order?
A: Once your order ships, you will receive a tracking notification via email. You are not required to purchase, download or use the Route app to track your order - this is an optional feature of the Route Package Protection service.
Q: Can someone outside of the United States place an order?
A: Yes, we are happy to provide worldwide service for our customers. Your shipping charges will be calculated during the checkout process. Customs and duty fees are the responsibility of the buyer.
Blog posts
Read morePete’s 2023 Elkhart Lake Blue Corvette Stingray LT1 is a standout example of C8 performance done right. With its bold factory color and black interior, this Stingray highlights the sharp design and balance that define the mid-engine Corvette era. The LT1 trim keeps the focus on driving, proving that simplicity and performance go hand in hand. A modern Corvette that turns heads wherever it’s parked.
Read moreBruce Hall’s Corvette journey began behind the wheel of a borrowed 1971 C3 and continues today with his stunning 2013 Triple Black Grand Sport Convertible. Spanning decades, military service, and multiple generations of Corvettes, Bruce’s story reflects a lifelong passion for performance and open-road freedom. His Grand Sport perfectly captures the balance of aggressive styling and everyday drivability that makes the C6 era so beloved. This is Corvette ownership rooted in experience, appreciation, and legacy.
Read moreFor Timothy Church, owning a Corvette was more than a dream — it was a promise. After selling his C3 Coupe early in marriage, he vowed to one day get another. Forty-five years later, that promise came true with a 2022 C8 Corvette in breathtaking Caffeine Metallic. Proof that some dreams — and some love stories — only get better with time.
