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Suspension and Components› Suspension Kits
UMI PERFORMANCE
UMI Performance 64-66 GM A-Body Handling Kit 2in Lowering Stage 1.5 - Red
SKU: U01C ABF415-2-R
Moderate — 2–4 hours
Overview
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Part #: ABF415-2-R
UMI's Stage 1.5 kit is the simple way to dramatically improve the handling and performance of your muscle car. We start with our original Stage 1 kit and take it to the next level by adding UMI's new race-worthy rebound adjustable monotube shocks. The 20-click adjustment range covers street cruising, corner carving and even autocross or road course use. The Stage 1.5 kit also tunes up the camber curve by including " taller than stock upper ball joints that easily bolt to factory and most aftermarket a-arms. High performance lowering springs feature medium stiffness to control body movement and reduce floating while still providing a comfortable, sporty ride. The UMI rebound adjustable monotube shocks feature a large diameter piston and nitrogen charge to dampen bumps and provide a crisp feel without being harsh. The shock is built with heavy-duty mounts to ensure durability and fits in the stock location. They are easily adjustable with an external adjustment knob - no tools required. Stage 1.5 balances out with our tried and true 1.250" front sway bar and 1" rear sway bars reducing body roll and providing excellent chassis balance when handling at the limit. Every component in this kit, as with all UMI products, is Made in USA.
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | UMI PERFORMANCE |
| Part Number | U01C ABF415-2-R |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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