2018 Audi S4
If you own an Audi S4, you’re already behind the wheel of a high-performance, luxury sports sedan that’s engineered for greatness. But what if you could take it to the next level? Whether you’re looking for more power, sharper handling, or a meaner aesthetic, modifying your Audi S4 can unlock its full potential. So, buckle up as we dive into the best mods for your Audi S4—and get ready to transform your ride into an even more thrilling driving machine!
1. ECU Tune – Boost Your Power and Performance!
If you’re looking to unleash more horsepower and torque from your Audi S4, an ECU tune is one of the most effective mods you can do. With just a simple software upgrade, you can gain up to 50-100 horsepower, depending on the tune and your other modifications.
Why it’s a game-changer:
- Instant performance gains in both horsepower and torque
- Improved throttle response and smoother driving experience
- Available tunes from companies like APR and Unitronic offer tailored solutions for your driving needs.
Pro Tip: Combine your ECU tune with an upgraded intake and exhaust for even more impressive results!
2. Cold Air Intake – Maximize Airflow, Maximize Power
A cold air intake is one of the simplest mods with the biggest return. By increasing airflow to your engine, you allow your S4’s engine to breathe easier and generate more power.
Why it’s a game-changer:
- Increased horsepower (you can expect around 10-20 hp)
- Better throttle response and improved engine sound
- Helps your engine perform more efficiently, especially under high-demand driving conditions.
Pro Tip: Pairing your cold air intake with a performance ECU tune can unlock serious horsepower.
3. Exhaust System – Hear the Roar!
One of the best ways to instantly transform your Audi S4’s performance and sound is by upgrading to a performance exhaust system. A free-flowing exhaust system will not only make your S4 sound amazing but also improve the engine’s efficiency.
Why it’s a game-changer:
- Deeper, more aggressive exhaust tone
- Increased horsepower and torque thanks to better exhaust flow
- High-quality systems like AWE Tuning or Milltek offer gains of up to 20 horsepower.
Pro Tip: Choose a system with adjustable exhaust valves to control sound levels depending on your mood or surroundings! And remember, the cheaper the exhaust system, the more fabrication is likely required!
4. Lowering Springs or Coilovers – Get the Perfect Stance
If you want your Audi S4 to look as aggressive as it drives, lowering springs or coilovers are a must. These mods not only improve the look of your car but also enhance the handling. Here are some by ECS Tuning!
Why it’s a game-changer:
- Lowers your car’s center of gravity, improving handling and cornering capabilities
- Provides that sleek, aggressive stance you crave
- Coilovers are adjustable, allowing you to fine-tune your ride’s height and stiffness to your liking.
Pro Tip: If you live in an area with rough roads, coilovers may be a better choice since they allow for customizable comfort and performance.
5. Upgraded Brakes – Stop Like a Pro
When you start adding more power to your Audi S4, you’ll need better stopping power to match. Upgrading to performance brakes is crucial for ensuring your car handles its newfound speed and power with ease. Check out this Brembo big brake kit on Urotuning!
Why it’s a game-changer:
- Bigger, stronger brakes for quicker and more consistent stopping power
- Brands like Brembo or AP Racing offer carbon-ceramic or slotted rotors for superior performance
- Improved pedal feel and less brake fade during spirited driving.
Pro Tip: If you’re planning on hitting the track, consider a big brake kit to handle intense braking demands!
6. Sway Bars – Sharper Handling, Less Body Roll
To really feel like a performance sedan, upgrading your sway bars is an absolute must. These mods help to stiffen up your suspension, reducing body roll during hard cornering. Here are upgraded sway bars by 034Motorsports!
Why it’s a game-changer:
- Improved handling and sharper cornering
- Reduces body roll and enhances stability during aggressive driving
- Front and rear sway bars are relatively easy to install and offer a big bang for your buck.
Pro Tip: For maximum handling improvement, pair sway bars with your suspension mods for a balanced ride.
7. Upgraded Intercooler – Keep Your Engine Cool Under Pressure
When you add more performance mods, heat becomes a bigger concern. An upgraded intercooler helps keep intake temperatures low, ensuring your engine operates at peak efficiency. Check this one out by APR!
Why it’s a game-changer:
- Reduces intake temperatures, preventing heat soak and maintaining optimal performance
- Essential for cars running high boost or a stage 2 tune
- Increases reliability and power output, especially during high-performance driving.
Pro Tip: Look for a front-mount intercooler for maximum airflow and cooling efficiency.
8. Carbon Fiber Parts – Reduce Weight, Increase Aero
If you want to shed some weight while adding some eye-catching style to your S4, consider switching to carbon fiber parts. Upgrading things like your front lip, diffuser, and mirror caps not only enhances the aesthetics but can also reduce weight and help with aerodynamics.
Why it’s a game-changer:
- Weight reduction improves overall performance and handling
- Adds a sleek, aggressive look with premium carbon fiber finishes
- Great for track enthusiasts who need to drop a few pounds off their car for faster lap times.
Pro Tip: Don’t overdo it! Focus on the most important parts, like the hood or spoiler to make a noticeable difference.
9. Upgraded Turbo – Boost Your Boost
If you’re ready to take your Audi S4 to the next level, upgrading to a bigger turbo is the way to go. The stock turbo is great, but with a bigger turbo, you can significantly increase horsepower and performance. Check out this turbo capable of pushing your S4 to 739 horsepower!
Why it’s a game-changer:
- Massive power gains (expect 50+ extra horsepower)
- Great for those looking for stage 3 power
- Requires supporting mods (tune, intercooler, exhaust) for the best results.
Pro Tip: Pair your upgraded turbo with a larger intake and a better intercooler to get the most out of your new turbo.
10. Performance Tires – Grip and Go
No matter how much horsepower you’re pushing, if your tires can’t grip the road, all that power goes to waste. Performance tires are crucial for getting the most out of your Audi S4, especially if you’ve modified it for extra speed.
Why it’s a game-changer:
- Better grip means faster launches, quicker cornering, and more confidence at high speeds
- Tires like Michelin Pilot Sport 4S or Continental ExtremeContact offer performance-focused traction for spirited driving
- When you upgrade other mods like power and handling, these tires will help put that power to the pavement.
The Audi S4 is already a beast in terms of performance, luxury, and style—but with the right modifications, you can take it from great to legendary. Whether you’re looking for better power, improved handling, or a more aggressive look, these mods will give you the edge you need to dominate the road.
So, what are you waiting for? Get ready to turn your Audi S4 into the ultimate performance machine—and don’t forget to enjoy the ride!
Stay tuned for more mods, tips, and tricks here on AudiSpeed!
