Description
QA1 2-1/2in ID High Travel Spring - 15in Length x 300lbs/in - Silver Powder Coated
These silver powder, high travel springs are made to fit with QA1's 4th Generation F-Body Pro Coil Systems. With a 2.125" upper I.D. and 2.5" lower I.D., they are offered in 3 rates with a 15" free length. Made in the USA, these high travel springs have fewer coils and a smaller wire diameter. As a result, they are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. They are cold wound, heat treated and shot peened to ensure consistency, accuracy and durability. All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. They are either silver powder coated for excellent longevity, or are polished and chrome plated for the ultimate in appearance. Lengths and rates are clearly marked for quick and easy identification. All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.
Additional Information
High travel coil spring with a 300 lb spring rate. Made with chrome silicon and has a silver powder coat finish. 2-1/2" inner diameter and a 15" length.
Part Type
Coil Spring
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:16:16
Features
- Designed to be as light as possible with maximum travel and superb performance
- Durable powdercoated finish
- Lifetime guarantee to remain within 2% of their original free height
- Made in the USA
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Product Details
| Brand: | QA1 |
| Description: | QA1 2-1/2in ID High Travel Spring - 15in Length x 300lbs/in - Silver Powder Coated |
| Manufacturer Part Number: | 15HTFB300 |
| Part Number: | qap15HTFB300 |
| Title: | QA1 Coil Spring 15HTFB300 |
| UPC: | 806990127402 |
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Qa1 |
| StreetFX SKU | qap15HTFB300 |
| SFX Item ID | 4091698 |
| Accounting SKU | qap-15HTFB300 |
| Manufacturer SKU | 15HTFB300 |
| Manufacturer UPC | 806990127402 |
| Alternative References | 15HTFB300, QA1-15HTFB300 |
Coilover Spring, High Travel, 300 lbs./in. Rate, 15 in. Length, 2.125/2.50 in. I.D., Silver Powdercoated, Chevy, Pontiac, Each
QA1 coil springs are designed to withstand the high-stress levels of modern suspensions. Made of high-tensile chrome-silicon wire, these springs require fewer coils, which reduces weight up to 28 percent and increases travel up to 20 percent, compared with conventional springs.
| Product Attributes | |
|---|---|
| Brand | QA1 |
| Manufacturer's Part Number | 15HTFB300 |
| Part Type | Coilover Springs |
| Product Line | QA1 High-Travel Coilover Springs |
| UPC | 806990127402 |
| Coilover Spring Inside Diameter (in.) | 2.125-2.500 in. |
| Coilover Spring Inside Diameter (mm) | 53.98-63.50mm |
| Coilover Spring Length (in.) | 15.000 in. |
| Coilover Spring Length (mm) | 381.00mm |
| Progressive Rate Spring | No |
| Coilover Spring Rate (lbs/in) | 300 lbs./in. |
| Spring Finish | Gray/Silver |
| Quantity | Sold individually. |
| Notes | Tapered coil spring with pigtail style spring ends. Lower I.D. 2.50 in. Upper I.D. 2.125 in. |
| Manufacturer Attributes | |
|---|---|
| Title | QA1 Coil Spring 15HTFB300 |
| Brand | QA1 |
| Manufacturer Part Number | 15HTFB300 |
| UPC | 806990127402 |
| Manufacturer Designation | Spring, Cr-Si High Travel 2-1/2" Id 15" X 300 Lb/In. Barrel Silver Pwdr Coat |
| Product Class | Coil Spring |
| Construction/Type | High travel coil spring with a 300 lb spring rate. Made with chrome silicon and has a silver powder coat finish. 2-1/2" inner diameter and a 15" length. |
| Product Outline | Lifetime guarantee to remain within 2% of their original free height Designed to be as light as possible with maximum travel and superb performance Durable powdercoated finish Made in the USA |
| Vehicle Brief | QA1 High Travel Spring |
| Market Description | These silver powder, high travel springs are made to fit with QA1's 4th Generation F-Body Pro Coil Systems. With a 2.125" upper I.D. and 2.5" lower I.D., they are offered in 3 rates with a 15" free length. Made in the USA, these high travel springs have fewer coils and a smaller wire diameter. As a result, they are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. They are cold wound, heat treated and shot peened to ensure consistency, accuracy and durability. All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. They are either silver powder coated for excellent longevity, or are polished and chrome plated for the ultimate in appearance. Lengths and rates are clearly marked for quick and easy identification. All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions. |
Compatibility
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