3DM Motorsport has been racing the E46 chassis for many many years. Before Öhlins released the Road and Track kits in 2009, we made our own version, circa 2006, using a modified Öhlins SportLine strut and Öhlins Motorsport damper (see image below). Now we have many options for the E46 M3 including the new Öhlins “Dedicated Track” suspension kit. 3DM has been an integral part of the development of this kit with Öhlins USA. See our test vehicle on the Öhlins USA shaker rig in the video below.
Why Öhlins? Öhlins has been an integrated part of the Motorsport industry for over 40 years. With its headquarters in Sweden, there are over 320 employees and a test center at the most demanding track in the world, the Nurburgring. Ohlins is the choice of Professional racers from Touring Cars to 24 Hours of LeMans and more. Even the new 2018 BMW M4 GT4 factory racecar is equiped with Öhlins dampers.
Street friendly with racing level technology (DFV, Temperature Compensation, and more)
Adjustable (20+ available clicks of adjustment)
2 Year Warranty (Corrosion tested ISO 9227)
Customizable (Spring Rates, Valving, Mounts, etc)
What Separates Öhlins from other dampers? Inverted strut design, temperature compensation valving, the unique Dual Flow Valve (DFV), diaphragm nitrogen valve, and more. For those who want to whet their appetite about the advanced technology behind Öhlins dampers, 3DM has put together an extensive guide explaining all the details. Click Here: Öhlins Technical Guide
Why Purchase Öhlins from 3DM Motorsport?
3DM Motorsport has been using Öhlins dampers on street and racecars for over 13 years. A suspension kit is not a commodity, but many dealers treat them as such and typically drop ship them straight from the manufacturer. At 3DM, we have a close relationship with Öhlins and we work directly with them on special projects such as the BMW line of ‘Dedicated Track’ kits. Our in house development, upgrade, and repair capabilities of Öhlins dampers helps us provide exceptional service to our customers.
Which Suspension Kit Is for me?
Everyone is a little bit different, or perhaps a lot different. Driving styles differ, mechanical skills differ, car upgrade paths differ, the list goes on. Before recommending a kit to someone these are some of the questions we ask…
What is your Personality?
Are you a “gearhead” and like to tinker with your suspension or do you like to leave it alone and enjoy it for what it is?
What is the Use Case?
How do you use your car… is it a daily driver, occasional “Sunday” driver, a dual duty street/track car, or a dedicated track car?
What level of NVH can you tolerate?
When discussing suspensions, you have probably heard the term NVH which stands for Noise, Vibration, and Harshness. For example stiff springs and damper valving can be harsh while spherical bearing mounts can create excessive noise. It is important to remember that other pieces of the suspension puzzle such as differential or subframe bushings can also affect NVH.
We suggest thinking through the answers to the above questions and then browsing our kit options below to see what best fits your needs. We are always an email or phone call away if you have any questions. Contact Us
Please note that all of our kits are customizable. If you wish to swap out a part of any kit, please Contact Us and we can build a kit specific to your needs.
Öhlins Road and Track Kits:
Ohlins Part Number: BMS Mi30
3DM Motorsport Part Number: 3DM-P-1036
Click Here to Purchase
These are the basic kits out of the box and un-assembled. This is what you will find on most other eCommerce sites which are drop shipped straight from Öhlins.
These kits are designed to use the OEM mounts. Depending on your application, you may need special tools such as a spring compressor to dismantle your old suspension if you intend to reuse the original OEM mounts. Alternately, can purchase new mounts and the associated specialty hardware before assembly. You will need to be fairly mechanical savvy to install this kit, otherwise we recommend a professional shop perform the install and setup.
Assuming you use OEM mounts, these kits will have factory like NVH. The spring rates are increased so there will be some slight increase in harshness.
The front and rear springs are not a typical race spring shape. The front spring is a “beehive” shaped spring in order to mate to the 65mm perch on the strut and the 100mm perch on the top mount. Even though it has this unique shape it is still a linear rate spring of 70 N/mm - 400 lbs/in. The rear spring is a “barrel” shaped spring in order to provide sufficient spring travel. Even though it has a unique shape it is still a linear rate spring of 110 N/mm - 630 lbs/in.
-Front struts with lower spring perch
-Front spring: (70 N/mm)(400 lbs/in)
-Rear spring: (110 N/mm)(630 lbs/in)
-Rear height adjuster
-Height adjuster wrenches
-Öhlins sticker and plaque book
Öhlins Road and Track RTR Kits:
(Ready to Run)
3DM Motorsport Part Number: 3DM-P-1026
Click Here to Purchase
3DM pre-assembles the basic Öhlins Road and Track Kits with OEM mounts so they are ready to bolt up to your car out of the box. This removes the need to research and source all the pieces yourself. It also reduces the risk of getting caught mid install with an incorrect part. New mounting hardware is also included depending on the application. All ride height settings are set to Öhlins recommended starting points with spring perch jam nuts torqued. You can always request a different setting or change it yourself before install.
In most cases, basic hand tools are all that are needed to install these kits. There should be no need for complicated special tools such as a spring compressor. Every DIY mechanic operates at a different pace but with these kits you will likely cut install time in less than half over a basic kit.
If you are having your favorite shop perform the install, the RTR kits will save you labor costs as well, offsetting the extra cost of the new mounts and hardware. We recommend letting your shop know this setup comes pre-assembled so they can adjust their labor estimate accordingly.
Much like the basic kits, the RTR kits will have factory like NVH. The spring rates are increased so there will be some slight increase in harshness.
-Ohlins Road and Track kit
-OEM Front Top Mounts
-OEM Rear Upper Shock Mounts
-New Hardware (spindle clamp bolt, front ARB nut, rear lower shock bolt, rear upper shock mount nuts)
3DM TrackDay Series Kits:
(Track Focused, Street Friendly)
3DM Motorsport Part Number: 3DM-P-1037
Click Here To Purchase
Our ‘TrackDay Series’ kits take the Öhlins Road and Track dampers to the next level while still retaining street-ability.* While you certainly can “set it and forget it” with these kits, they are geared more towards the person who wants to tinker with their suspension on a regular basis.
These kits are not “shopping cart” developed. Tweaks to each component have been made to ensure proper fitment and the ultimate performance. For example, the front strut was originally designed to work with the OEM top mount. When converting over to a camber plate, the camber plate “stack height” is much thinner. This creates ride height and rebound travel problems. We include special spacers to adjust the strut position in the spindle clamp to resolve this problem. This also aids in the ability to use a wider wheel/tire combo as the lower spring perch is higher to help clearance.
We recommend running this setup with an adjustable aftermarket front anti roll bar.
-All items from the Basic kit
-Front race spring
-Rear race spring
-Swift Race Springs
-Spherical bearing rear upper shock mounts
Öhlins Dedicated Track Kits:
(Competitive, Not Complicated)
Ohlins Part Number: (Coming Soon)
3DM Motorsports Part Number: 3DM-P-1038
Click Here To Purchase
The Öhlins "Dedicated Track" lineup is competitive, not complicated. They provide optimal suspension performance for dedicated track e46 M3 cars. Developed both in Sweden and the US, this kit is designed specifically for the e46 M3. It is does not use a "catch all" damper where half the clicker settings are useless. The easily accessible adjuster at the base of the Öhlins units allows small, but positive increments of fine tuning, so you can take into account every single parameter. The Since all the work has already been done, you can simply bolt these on and head straight to the track and focus on driving.
-Track valved dampers
-DFV valving to control curb strikes
-Spherical bearing rear upper shock mounts
-Öhlins Rear Ride Height Adjuster and Spring Perches
Ohlins Motorsport kits:
(The ultimate racing suspension)
Under Development to be released winter 2019. Contact Us to be placed on an email notification list.
3DM Motorsport Part Number: 3DM-P-1071 (Coming Soon)
These are for the serious racer looking for the extra edge. TTX is a twin tube damper that is fully pressure balanced eliminating the risk of cavitation, enabling the use of low gas pressure which keeps friction at bay. The low amount of hysteresis results in excellent short stroke/high force performance.
TTX 46 Strut Damper
The TTX 46 strut damper can be modified to fit a wide range of car types and models. Available in both 2 way and 4 way adjustable. Through rod technology removes gas pressure from the piston shaft reducing friction tremendously.
TTX 40 Eye to Eye Damper
The perfect complement to the TTX 46 strut damper, the TTX 40 damper can be modified to fit a wide range of car types and models. Available in both 2 way and 4 way adjustable. Through rod technology removes gas pressure from the piston shaft reducing friction tremendously.
TTX 36 ILX Eye to Eye Damper
A more economical compliment to the TTX 46 Strut damper. Available in both 2 way and 4 way adjustable but in a non through rod application. The inline reservoir creates a compact package as there is no need for an external reservoir.
Please give us a call to discuss your needs. Contact Us
Re-valve | Repair | upgrade Services
Already own an Öhlins Road and Track suspension kit? Whether you purchased it from 3DM Motorsport or not, we offer a a suite of services to suit your needs. Please Contact US for further information.
Its a good idea to have your dampers serviced on occasion. Just like oil in your engine, shock oil doesn’t last forever. There is no set interval like an engine oil change, It all depends on the abuse the dampers have gone through. A general rule of thumb is every 1 to 2 years of track use and approximately every 4 years of street use.
Making a drastic setup change or not happy with the way your car is reacting dynamically? We can re-valve your dampers to help dial in that new setup. Each re-valve comes with a pre and post dyno sheet for record keeping purposes.
‘Basic’ and ‘RTR’ kits can be upgraded to ‘3DM TrackDay Series’ kits or ‘Dedicated Track’ kits. We have all the appropriate hardware as well as valving spec cards to change over your kit and take it to the next level.