Why Choose AST Suspension?
When it comes to elevating your vehicle’s handling, precision, and on-track performance, AST Suspension delivers uncompromising quality engineered for the most demanding drivers. Whether you are carving up local backroads or chasing podiums at Time Attack events, AST provides a suspension solution tailored to your exact needs.
Here is why AST Suspension stands out from the competition:
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100% Made in the Netherlands: Every AST Suspension kit is meticulously designed, engineered, and manufactured in-house at their state-of-the-art facility in the Netherlands, ensuring world-class quality control and premium construction.
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Fully Backed Australian Warranty: Drive with absolute peace of mind knowing your investment is protected by a comprehensive warranty fully backed right here in Australia.
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Local Servicing & Rebuilds: Downtime is the enemy of any track enthusiast. AST coilovers are fully rebuildable and serviceable within Australia, meaning you don't have to ship your suspension overseas for maintenance.
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Expert Local Support: You are never on your own when dialing in your setup. For suspension setup guidance, contact TJ Auto Parts.
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Comprehensive Motorsport Program: No two cars-or drivers-are exactly alike. AST offers a full motorsport program with extensive customization available to meet every driver's specific requirements, from bespoke valving to custom spring rates.
Key Features & Specifications
AST Suspension Series Comparison
All AST series feature a high-pressure inverted monotube design (for McPherson applications), height adjustability, included springs, and fully rebuildable architecture. The primary differences lie in their adjustability, remote reservoir inclusion, and topmount configurations.
| Feature |
5100 Street Series |
5100 Competition Series |
5200 Series |
5300 Series |
| Ideal For |
Fast Road & Occasional Track |
Dedicated Track Days & Club Racing |
Competitive Time Attack & Racing |
Professional Motorsport |
| Damping Adjustability |
1-Way |
1-Way |
2-Way |
3-Way |
| Rebound Adjustable |
Yes |
Yes |
Yes |
Yes |
| Compression Adjustable |
No |
No |
Yes (Single adjusting on reservoir) |
Yes (Separate High & Low-Speed) |
| Reservoir Type |
Internal |
Internal |
Remote Reservoir |
Remote Reservoir |
| Topmounts |
Works with OEM Topmounts |
Pillowball Camberplates (Front)* & Topmounts (Rear)* **
|
Pillowball Camberplates (Front)* & Topmounts (Rear)* |
Pillowball Camberplates (Front)* & Topmounts (Rear)* |
| Design Core |
Inverted Monotube |
Inverted Monotube |
Inverted Monotube |
Inverted Monotube |
*Where applicable based on chassis design (McPherson suspension will be inverted; double wishbone will be non-inverted).
**Option of Front only, or Front and Rear Camber plate options available.
Vehicle Fitment
- BMW 1 Series (E81, E82, E87, E88) (2004-2013)
- BMW 3 Series (E90, E91, E92, E93) (2004-2013)
Supplier-listed applications:
- BMW 1 Series (E81, E82, E87, E88) (2004-2013)
- BMW 3 Series (E90, E91, E92, E93) (2004-2013)
Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.
Can’t find the part you’re looking for?
If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.
How do I make payment?
Payment is completed during checkout. We accept all major payment methods via Shopify Payments including credit/debit cards, Apple Pay, Google Pay, and more. Direct bank transfer is also available please contact us at contact@tjautoparts.com.au for bank details and instructions.
How long will it take to process my order?
We aim to process and dispatch all orders within 1–2 business days. If there are any delays, we will notify you promptly via email.
What if I’ve seen a cheaper price elsewhere?
We always aim to offer the best value. If you’ve found a better price elsewhere, get in touch with us and we’ll do our best to match or beat it.
Where do the products come from?
All products are sourced directly from the manufacturer or authorised suppliers to ensure authenticity. Every item is backed by the manufacturer’s warranty.
Do you offer trade accounts or special pricing?
Yes, we offer trade accounts and pricing for qualified customers. To find out more or apply, simply email us at contact@tjautoparts.com.au and our team will assist you.
To see more FAQs visit our FAQs page or get in touch today.
Shipping Rates
We offer free standard shipping on all orders over $150 (excluding bulky items). For orders under $150. Standard shipping starts at $9.95. Express shipping starts at $14.95. Shipping costs can be calculated in the cart or at checkout. Orders containing bulky items such as batteries, brake discs, liquids, and lift kits may incur additional shipping charges, particularly to remote or regional areas.
Dispatch & Handling
We aim to process and dispatch all orders within 1-2 business days. In the event of any delays, our customer service team will notify you. Tracking numbers are sent via email once your order has been dispatched and can also be accessed from your account.
For enquires on same day delivery or pickup, please contact our team before ordering to check availability. Custom or order in only items may have longer lead times. For more details on shipping, see our Delivery information page.
Returns and Refunds
If you change your mind or need to cancel an order, simply contact us at contact@tjautoparts.com.au within 30 days of delivery. Items should be unused and in their original packaging. A small restocking/admin fee of 5–20% may apply to help cover processing costs. This fee is only applicable at the discretion of our staff and may not apply to all orders. Return shipping is covered by you unless we sent the wrong or faulty item, in which case we’ll take care of it. Once we receive your return, refunds are processed quickly, usually within 48 hours, with up to 5 business days for your bank to complete the transfer.
We’re here to help make returns easy and hassle free! Contact us with any questions.
Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.
