1. AREEVE Tuning Box

Start your transformation with the AREEVE Tuning Box. This plug-and-play device seamlessly integrates with your G80 M3's ECU, unlocking hidden potential within the engine. Experience a significant boost in horsepower and torque, translating to exhilarating acceleration and a more responsive throttle.

We listed this #1 on our G80 M3 top 5 mods as it gave the most for the least amount of work.

Fitting the stage 1 Areeve tuning box to our G80 M3 we saw a power increase of +103BHP / +132NM of Torque which is a significant bump in power for this easy to do modification.

Watch us fit the Areeve tuning box plus a set of HRE FF21 wheels here:

2. MSS Suspension

If we're starting off with power then we need to look at putting that down too. So #2 on our G80 M3 top 5 mods is MSS Suspension.

If you're seeking a suspension system that delivers exceptional performance, comfort, and customisation, MSS Hybrid Suspension is the ideal choice. With its innovative dual spring system and triple-rated technology, you'll experience a transformative driving experience for both road and track.

What makes MSS suspension unique?

1. The initial spring rate absorbs small bumps and imperfections in the road, ensuring a smooth and comfortable ride.
2. The secondary spring rate comes into play during cornering, providing exceptional grip and control.
3. The stiffest spring rate resists sudden dynamic movements, such as those encountered during acceleration, braking, or swerving, maintaining composure and traction.

Read how MSS Suspension came out on top against the competition here.

3. Milltek OPF Back Exhaust

#3 on our list for G80 M3 top 5 mods and to compliment the tuning box we want to derestrict the airflow coming out of the engine as much as possible.

The Milltek OPF Back Exhaust is the solution for this for those wishing to retain legal emissions standards. This high-quality stainless steel system delivers a more aggressive and throatier sound while reducing weight for improved performance.

Not only does this improve the sound and reduce weight but Milltek offer a range of tip size and finish options to enhance the rear aesthetics. This is our most popular exhaust system for G80 M3 owners and recommended by us here at AUTOID.

We do a deeper dive into OPF-Back exhaust systems here.

Watch us fit exhaust modifications and our TRE PR-1 to our G80 M3 below:

4. TRE PR-1 Body Kit

Coming in at 4th on our G80 M3 top 5 mods is the best carbon kit on the market.

The TRE PR-1 carbon fibre aero kit is a must-have for any G80 M3 owner seeking to elevate their car's aesthetic appeal and enhance its performance. This meticulously crafted kit offers a comprehensive transformation, featuring a front splitter, side skirts, rear spoiler, and rear diffuser.

Key Features and Benefits:

• Aggressive Aesthetics: The TRE PR-1 kit adds a touch of aggression and sophistication to your G80 M3, making it stand out from the crowd with a lower and wider stance.
• Premium Materials: Crafted from high-quality pre-preg carbon fibre, the TRE PR-1 kit ensures durability, lightweight construction, and a flawless finish.
• Easy Installation: The kit is designed for a straightforward installation process, allowing you to enjoy the benefits without the hassle of complex modifications.

Take a more in-depth look at how we developed the PR-1 kit here.

5. Eventuri Intake System

Everyone loves the sound of induction and turbo whooshing. Coming in 5th on our G80 M3 top 5 mods will get your S58 doing just that.

Optimise airflow and enhance power delivery with an Eventuri Carbon Fibre Intake System. This high-flow intake replaces the restrictive stock unit, ensuring your engine receives a steady supply of cool, clean air.

Complimentary to the Milltek exhaust system listed above. It's crucial for any engine to intake and expel air as fast as possible.

• Increased airflow for improved engine performance
• Quicker turbo spool-up for faster acceleration
• Potential gains in horsepower and torque
• Aggressive and sporty intake sound
• Lightweight design for improved handling
• Sleek and stylish appearance
• Easy installation with no ECU modifications

Watch us fit an Eventuri intake onto our BMW G80 M3:

6. HRE FlowForm Wheels

Yes, we know this was supposed to be a top 5, but we had to include this modification. Coming in as a bonus #6 on our G80 M3 top 5 mods and one of the most dramatic exterior modifications - a set of HRE FlowForm wheels.

These lightweight, flow-formed wheels offer a perfect blend of style and performance you get from HRE without the hefty price tag.

HRE wheels are the chosen wheel of choice for our builds here at AUTOID. Our personal favourite being the FF21 as seen on our G80 M3, G87 M2 and G82 M4.

Read our previous post on why HRE wheels are worth the investment.