Looking to Modify My BMW 4 Series - What Upgrades Do You Recommend?

BMW
1

I’m on the hunt for some solid advice and suggestions on modifying my BMW 4 Series. I’ve got a 440i and I’m considering a mix of performance and aesthetic upgrades. Here are a few points I’d love feedback on:

Performance Enhancements

  • Tuning: Has anyone had great results with specific tuning chips or software? What gains did you see?
  • Exhaust Systems: Looking for a deeper sound without too much drone. Any suggestions?

Aesthetic Upgrades

  • Wheels: What size and style do you think complements the 4 Series best?
  • Wraps vs. Paint: Is wrapping worth it, or should I go for a custom paint job?

Community Favorites

  • I’d also love to hear about any mods you feel are ‘must-haves’ for the 4 Series community. Pictures are totally encouraged, so feel free to share! The visual inspiration really helps when picturing my build.

I appreciate any input you guys can provide!

2

If you’re looking to boost your BMW 4 Series performance, consider upgrading the turbocharger and intercooler. These mods can significantly increase power and improve throttle response.

3

I totally agree! Adding a high-performance exhaust system can also enhance the sound and reduce weight, making your ride feel even sportier.

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I’ve found that a proper tune is essential after any engine upgrades. It optimizes the whole setup and ensures you’re getting the most out of your modifications.

5

Definitely! A remap can unlock extra horsepower and torque, which is super crucial for a balanced driving experience.

6

Don’t forget about upgrading your suspension! Better dampers and springs can drastically improve handling and overall driving dynamics, especially on twisty roads.

7

Exactly! Also, consider sway bars for enhanced stability during cornering. It’s a game changer for performance driving.

8

I’ve been thinking about some cosmetic upgrades alongside performance mods, any recommendations? I want my 4 Series to look as good as it performs.

7 Likes
9

You could add a front lip splitter and a rear spoiler! They not only make your car look aggressive but also enhance downforce.

10

What about upgrading the brake system? Improved brakes are critical when you boost performance; they enhance safety while pushing your car to its limits.

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11

Great point! A big brake kit can make a significant difference in stopping power, especially for track days.

12

I’m curious: has anyone installed a cat-back exhaust on their 4 Series? How loud is it in daily driving conditions?

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I have! It’s awesome, but you do notice it at lower speeds. It roars at full throttle though, which is fantastic!

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It’s all about finding the right balance between performance and comfort. You can have an excellent handling car but still want to drive it daily.

15

Absolutely! That’s why I suggest lightweight wheels too. They enhance acceleration and handling without sacrificing comfort.

16

Remember, too many mods can take away from reliability. It’s tempting, but focus on quality over quantity!

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Body kits can really transform the look of your BMW 4 Series. Consider a lip kit or a more aggressive splitter for that sporty edge.

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Very true! And let’s be honest, we all want more speed, but we don’t want to deal with constant fixing.

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Absolutely! Don’t forget about getting some nice wheels; they can dramatically change the presence of your car. Lightweight alloys can also improve performance.

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Wheels definitely make a big difference. Have you thought about specific designs? Something with a unique finish can stand out! Maybe matte black or chrome?