AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe
AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe
AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe
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AST 5300 Series Coilovers BMW 3 series - E46 M3 Coupe


For the best performance on the track, AST Suspension designed the Competition 3-way adjustable series. The 5300 Series shock absorbers are rebound adjustable in 12 positions on the strut.
Many years of technical knowledge, testing, and experience have been refined, fettled, and brought together to create a perfect balance between the choice of springs and the corresponding damping characteristics. This makes it a versatile product for every customer. The 5300 series shock absorbers are the best solution for every race team. Once installed, the shock absorbers are easy to set up, highly reliable, and require low maintenance during the season because of the high grade of materials used.
All of this together makes the 5300 series shock absorbers a championship-winning damper, over and over again. The AST Suspension 5300 series coilovers are worldwide renowned for their performance at every level.
High end, track-ready suspension
Spherical upper shock mount assemblies
Synthetic hydraulic fluid
Fully serviceable and rebuildable
Revalvable for specific characteristics

AST 5300 Series Coilovers for BMW E46 3-Series Details:

  • Manufacturer: AST Suspension
  • Manufacturer Part Number: RAC-B1103S
  • 3-Way Adjustable: Yes; Rebound, Low- & High-speed compression
  • Rebound adjustments: 12 positions
  • High-Speed Compression Adjustment: 12 positions
  • Low-Speed Compression Adjustment: 14 positions
  • Remote reservoirs
  • Inverted strut design
  • Monotube technology for improved handling and consistent performance
  • Ride height adjustable
  • Gas-pressurized
  • Includes AST top mounts
  • Includes springs


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We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at


Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.  Please take a picture of the box if there is damage immediately to help us in the claims process with the carrier.


Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.


The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.


We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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