Introduction: The Secret to Better Handling in Your BMW
If you own a BMW, especially an older model like the E30 or E46, you may have heard the term E46 Lollipop M20 tossed around in tuning conversations. But what is the E46 lollipop M20, and why are car enthusiasts swapping or upgrading it?
Whether you’re restoring a classic BMW or modifying it for track use, understanding the role of the lollipop bushing—especially one adapted from the E46 chassis for the M20 engine setup—can dramatically improve your driving experience.
What Is the E46 Lollipop M20?
Understanding “Lollipop” in Suspension Terms
In BMW suspension systems, the “lollipop” refers to the front control arm bushing bracket. It’s shaped like a lollipop (a round rubber bushing with an extended bracket arm), and it connects the control arm to the chassis.
What Does M20 Mean in This Context?
The M20 is an iconic inline-6 engine found in classic BMW models like the E30 325i. Enthusiasts often use E46 lollipop bushings with M20 engines when upgrading suspension systems for:
- Better handling
- Firmer road feel
- Improved alignment geometry
This is especially popular when performing engine swaps or suspension upgrades for track or spirited street driving.
Why Use the E46 Lollipop on an M20 Setup?
1. Enhanced Caster for Better Cornering
Installing E46 lollipops on an older BMW (with the M20 engine) increases caster angle, which improves:
- High-speed stability
- Steering return-to-center
- Cornering performance
This is ideal for track builds or aggressive driving setups.
2. Stronger and More Modern Design
The E46 bushings are larger, more durable, and better engineered than those found on earlier BMWs. You’ll notice a tighter, sportier steering feel with reduced slop in the front end.
3. Simple Upgrade with Big Impact
This is a bolt-on modification with huge benefits and minimal cost—perfect for DIYers or garage enthusiasts.
How to Install E46 Lollipop Bushings on an M20 Setup
Important: Always use jack stands and proper safety equipment when working under a vehicle.
Tools You’ll Need:
- Jack and jack stands
- Wrench set
- Torque wrench
- Bushing press or mallet
- Lubricant (rubber-safe)
Installation Steps:
- Lift the Vehicle Safely
Use ramps or jack stands to support the front end securely. - Remove Old Lollipops
Disconnect the existing control arm brackets and bushings from the chassis and arms. - Press in the New E46 Bushings
You may need to freeze the bushings overnight to make the installation easier. - Install the Lollipops onto the Control Arms
Align them correctly for proper caster. Some users rotate them slightly to achieve a more aggressive alignment. - Bolt Everything Back Up
Torque to BMW factory specs and double-check alignment. - Test Drive and Adjust
After installation, get an alignment done at a shop to fine-tune geometry.
Who Should Consider This Upgrade?
- BMW E30/E36 owners doing an M20 engine build
- Track day drivers looking for tighter handling
- Enthusiasts restoring classic BMWs with modern components
- DIY mechanics wanting to enhance their driving experience without a huge budget
Tips for Best Results
- Use polyurethane bushings if you want stiffer response
- Stick to OEM rubber if you want comfort for daily driving
- Pair this mod with upgraded sway bars and coilovers for maximum effect
- Always follow up with an alignment after installation
Conclusion: Small Part, Big Difference
The E46 lollipop M20 mod is a favorite among BMW enthusiasts for good reason. It brings the best of modern suspension feel to older platforms without requiring major fabrication or expensive parts. Whether you’re building a weekend cruiser or a track-ready machine, this upgrade offers better handling, tighter control, and a more connected drive.
Final Thoughts: Upgrade with Confidence
If you’re serious about improving your BMW’s performance, this is one of the smartest, most cost-effective upgrades you can make. The E46 lollipop M20 combo blends classic engineering with modern benefits—and best of all, it’s something you can do yourself or have installed with ease.
So grab your tools, pick the right bushings, and give your BMW the control it deserves.
FAQs About E46 Lollipop M20
1. Is this mod only for E30s?
No. While it’s common in E30 builds, it can be applied to other classic BMW models that use the M20 engine or similar suspension geometry.
2. Will it fit without modification?
Usually, yes. But some applications may require minor trimming or adjustment for perfect fitment, especially if combined with aftermarket control arms.
3. What’s the cost of this upgrade?
On average, \$50–\$100 USD for parts. Labor costs depend on your shop or DIY setup.
4. Is this good for daily driving?
Absolutely—especially if you use OEM-style rubber bushings. You’ll get improved feel without sacrificing comfort.
5. Do I need an alignment after this upgrade?
Yes! A professional alignment is essential to fully benefit from the increased caster and avoid uneven tire wear.
