AST Suspension 5100 1-way Adjustable Inverted Coilovers - Porsche 986 Boxster - 2000 - 2004
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AST Suspension 5100 Street – 1-Way Adjustable Inverted Coilovers
Porsche 986 Boxter
The AST Suspension 5100 Street / Competition coilover kit is a premium suspension upgrade for the Porsche 986 Boxter are engineered to deliver improved handling, sharper response, and enhanced driver confidence without sacrificing everyday comfort. Designed for fast road and spirited driving, the 5100 Series offers a perfect balance between performance and usability.
Featuring 1-way adjustable damping, these coilovers allow precise tuning of rebound and compression together, making it easy to tailor ride quality and handling characteristics to your driving style. The inverted monotube damper design improves strength and durability under high loads, making this kit ideal for both aggressive road use and occasional track days.
Technical Specification
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Vehicle Compatibility:
Porsche 986 Boxter 2000-2004 -
Product Type: Coilover suspension kit
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Series: AST 5100
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Damping Adjustment: 1-way adjustable (combined rebound & compression)
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Damper Design: Inverted monotube
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Ride Height Adjustment: Fully height adjustable
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Use Case: Fast road / spirited driving / occasional track use
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Build Quality: High-performance motorsport-derived components
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Fitment: Direct bolt-on application
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Fully rebuildable design: AST Moton suspension can be completely disassembled, serviced, and rebuilt, extending service life and allowing re-valving or refurbishment to restore like-new performance rather than replacement.
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Upgrading: AST 5100/5200/5300 “5000-series” dampers are built modularly and can be upgraded, but what’s involved depends on which step you’re taking and your exact Porsche chassis/kit spec.
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5100 → 5200 or 5300: Generally possible by sending the dampers to an authorized AST rebuild/upgrade center to add the required internals and remote reservoirs (and associated hardware). This “upgrade path” is a commonly stated feature of the AST 5000-series modular design.
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5200 → 5300: Typically the straightforward upgrade (adding the extra compression circuit/adjustment hardware). Many dealers describe the 5200 as a good “start here, upgrade later” option for that reason.
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For any questions and more details re upgrade options please speak to a member of the team
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Installation: Professional installation and alignment recommended
We offer professional installation services directly in the Rennworks workshop, where your product will be expertly fitted and fully set up for optimal performance. To book an installation appointment, simply contact us and we’ll be happy to arrange a time that suits you.
Not sure if this product is the right fit for your vehicle? We’re here to help. Our team can quickly check compatibility and make sure you’re choosing the correct item before you buy. Just reach out with your vehicle details, and we’ll confirm everything for you.
Some product images are for illustrative purposes only and may show a generic or representative version of the item. Actual components may vary slightly depending on vehicle application or specification, but all products supplied will match the description and meet our quality standards.
Most orders are processed within 1–2 business days and usually ship within 3–7 business days. Not all items are held in stock, as some products are bespoke and made to order — for example, certain coilover suspension kits and exhaust systems — and delivery times may be longer in these cases. Where this applies, we’ll keep you fully informed and confirm expected dispatch dates as soon as possible. If you’d like to check availability or lead times, feel free to contact us before making a purchase.