| Velocity AP Performance Springs for 2005-15+ Aston Martin V8 Vantage VelocityAP springs exclusively utilize high quality, high stress X5K Spring Steel. While this material is considerably more expensive than regular steel, this new generation steel allows us to further improve upon the original Aston Martin V8 Vantage spring design by reducing the amount of steel required in the spring itself. Thanks to this clever design, VelocityAP springs are therefore substantially lighter (by approximately 30%) and reduce the solid height therefore increasing travel. X5K Spring Steel is used in almost all top levels of Motorsport, giving a hugely successful endorsement of its characteristics & proven durability. In addition to their use of superior materials, these springs are produced by way of a unique manufacturing process that truly differentiates them them aside from most OEM & Aftermarket springs - a Tapered Wire Progressive Rate design. The Ultimate in Design. The principle is simple: By using a tapered rather than constant diameter spring wire, Velocity AP's springs achieve a truly progressive spring rate over the length of their compression & travel. As a result of the characteristics created by the tapered design, the spring rate increases when you need it (cornering) and decreases when you don't - yielding a smooth and supple ride over bumpy surfaces. The best of both worlds! Key Features:
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![Velocity AP ECU Tune for 2006-13 V8 Vantage [4.3L/4.7L]](https://cdn11.bigcommerce.com/s-ldaxybx767/images/stencil/500x659/products/29809/147602/_1388680367__36617.1583259620.jpg?c=3 "Velocity AP ECU Tune for 2006-13 V8 Vantage [4.3L/4.7L]")
