Lightweight and versatile K-member for LS engine swaps in Mustangs.
The QA1 Suspension Crossmember is designed for 1979 to 1993 Ford Mustang models undergoing LS series engine swaps. This tubular K-member is constructed from high-quality American-made HSLA steel, providing a significant weight reduction of over 50 percent compared to the stock K-member, with a total weight of only 25 pounds. The design enhances vehicle performance by improving geometry, which is crucial for street performance, autocross, Pro-Touring, and drag racing applications.
This K-member maintains optimum anti-dive geometry and minimizes bump steer issues, particularly beneficial for Mustangs with a lowered stance. Its bolt-in design allows for easy installation, as all mounting points have been digitally indexed from new factory K-members, ensuring compatibility with factory components without altering wheel or tire fitment. Additionally, the modular design allows for versatile engine mount options, accommodating future engine changes with ease.
The QA1 Suspension Crossmember also features increased header clearance, facilitating easier maintenance and installation. This product is powder coated in black for enhanced durability and corrosion resistance, making it a reliable choice for performance enthusiasts.
Features
- Made From High-Quality HSLA Steel
- Weight Savings: At Over 50 Percent Lighter Than The Stock K-Member, The Entire K-Member Weighs Only 25 Pounds
- Improved Geometry: Ideal For Street Performance, Autocross, Pro Touring Or Drag Racing, These K-Members Maintain Optimum Anti-Dive Geometry
- Bolt-In Design: All Mounting Points Have Been Digitally Indexed From New, Factory K-Members
- Modular Design For Versatility: Bolt-In Engine Mounts That Can Be Easily Swapped Out For Future Engine Changes
- Increased Header Clearance: Header And Oil Pan Clearance Maximized For Easier Maintenance And Installation
Specifications
- Manufacturer: QA1
- Manufacturer Part Number: MUK21
- Finish: Powder Coated
- Color: Black
- Material: Steel
Technical Documents
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
Skip to content

