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QA1 Precision Products, Inc

QA1 2-1/2in ID Spring - 12in Length x 300lbs/in - Chrome Plated

$99.65 $89.95 Save $9.70

SKU: Q00B 12CS300

In Stock
In Stock
Ships by Oct 5
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The QA1 12CS300 is a 12-inch coilover spring with a 2-1/2 inch inner diameter and a spring rate of 300 lbs/in. Constructed from Chrome Silicon Steel and featuring a chrome-plated finish, this spring is designed for use with QA1 coil-over shocks and other standard 2.5-inch ID coil-over systems.

Adjusting coilover spring rates can be beneficial for various driving styles, from daily driving to track days and drifting, allowing you to unlock your vehicle's full performance potential.
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Part #: 12CS300

GREAT APPEARANCE

Features:

  • Lifetime guarantee to remain within 2% of their original free height
  • Designed to be as light as possible with maximum travel and superb performance
  • High luster chrome finish offers the ultimate appearance

Coil spring with a 300 lb spring rate. Made with chrome silicon and has a chrome plated finish. 2-1/2" inner diameter and a 12" length.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandQA1 Precision Products, Inc
Part NumberQ00B 12CS300

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Returns & Fitment

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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Shipping

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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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