Custom Paint Jobs

15 Forbidden Car Mods That Are Undeniably Cool

In the realm of automotive modification, there exists a subset of alterations that push the boundaries of conventionality and embrace the spirit of individuality and creativity. These are the forbidden car mods—modifications that, while often deemed unconventional or even controversial, undeniably exude a sense of coolness and uniqueness.

From engine swaps that defy traditional powertrain configurations to custom paint jobs that transform vehicles into rolling works of art, these forbidden mods challenge the status quo and elevate the automotive enthusiast scene to new heights.

Engine Swaps

V8-6-4 Engine
Image Credit: WikiCommons.

While engine swaps may be technically challenging and may require significant modifications to the vehicle’s frame and drivetrain, they can unleash unprecedented levels of power and performance. From dropping a high-displacement V8 into a compact car to transplanting a turbocharged engine into a classic muscle car, engine swaps offer the opportunity to create truly unique and exhilarating driving experiences.

Widebody Conversions

Widebody Conversions
Image Credit: Carbuzz/Pinterest.

Widebody conversions involve widening the vehicle’s fenders and body panels to accommodate larger wheels and tires, giving the car a more aggressive stance and improved aerodynamics. While this modification may require cutting and welding the vehicle’s body, the result is a head-turning appearance that sets the car apart from the crowd.

Stanced Suspension

Female auto mechanic work in garage, car service technician woman check and repair customer car at automobile service center, inspecting car under body and suspension system, vehicle repair shop
Image Credit: Shutterstock.

Stanced suspension involves lowering the vehicle’s ride height and adjusting the camber of the wheels to achieve a more aggressive stance. While extreme camber angles may compromise handling and tire wear, a tastefully stanced suspension can enhance the car’s visual appeal and give it a unique and eye-catching presence on the road.

Custom Paint Jobs

Custom Paint Jobs
Image Credit: Michael Gil/WikiCommons.

Custom paint jobs allow car enthusiasts to express their individuality and creativity by transforming their vehicles into rolling works of art. Whether it’s a vibrant metallic finish, intricate airbrushed designs, or eye-catching vinyl wraps, a custom paint job can turn heads and make a bold statement wherever the car goes.

Performance Exhaust Systems

exhaust system
Image Credit: Unsplash.

Upgrading to a high-performance exhaust system can not only enhance the sound of the engine but also improve horsepower and torque output. Whether it’s a throaty rumble from a V8 muscle car or the high-pitched scream of a turbocharged import, a well-tuned exhaust note can add to the overall driving experience and make the car more enjoyable to drive.

Forced Induction

Speeding car with natural energy technology. Low angle side view of car driving fast on motion blur
Image Credit: U2M Brand/Shutterstock.

Forced induction systems, such as turbochargers and superchargers, can dramatically increase the engine’s power output by compressing air and forcing it into the combustion chambers. While installing a forced induction system may require modifications to the engine and fuel system, the result is a significant boost in horsepower and torque that can transform the car’s performance capabilities.

Roll Cages

Roll Cages
Image Credit: Kytabu/WikiCommons.

Roll cages not only enhance the safety of the vehicle in the event of a rollover but also stiffen the chassis and improve handling dynamics. While installing a roll cage may require removing interior trim panels and welding mounting points to the vehicle’s frame, the added safety and performance benefits make it a worthwhile modification for serious enthusiasts.

Big Brake Kits

Brake Pad
Image Credit: ChrisFix/Youtube.

Upgrading to a big brake kit can significantly improve the stopping power and fade resistance of the vehicle’s braking system. With larger rotors, multi-piston calipers, and high-performance brake pads, a big brake kit can provide shorter stopping distances and improved pedal feel, making it a popular upgrade for track enthusiasts and performance-oriented drivers.

Air Suspension

Hydraulic or Air Suspension Systems
Image Credit: Brad Prudhon/Flickr.

Air suspension systems allow drivers to adjust the ride height and stiffness of their vehicles at the touch of a button, providing a smooth and comfortable ride on the street and improved handling on the track. While installing an air suspension system may require modifications to the vehicle’s suspension components and wiring harness, the ability to customize the car’s ride height and stance makes it a desirable modification for many enthusiasts.

Lightweight Wheels

2024 Porsche Macan 4 Tire
Image Credit: Porsche.

Upgrading to lightweight wheels can reduce unsprung weight and rotational inertia, improving the car’s handling and acceleration. Whether it’s forged aluminum wheels for a sports car or lightweight carbon fiber wheels for a supercar, a set of lightweight wheels can enhance the car’s performance capabilities and give it a more aggressive appearance.

Aero Kits

1986 Ford Fairmont (XF) station wagon
Iamge Credit: Riley/WikiCommons.

Aero kits, such as front splitters, side skirts, and rear spoilers, can improve the car’s aerodynamic efficiency and downforce, enhancing high-speed stability and cornering grip. While installing an aero kit may require drilling holes and mounting brackets to the vehicle’s body, the added performance benefits can make it a worthwhile modification for track enthusiasts and spirited drivers.

High-Performance Tires

Michelin Airless Tire
Image Credit: Michelin.

Upgrading to high-performance tires can significantly improve the car’s grip and handling characteristics, allowing it to corner faster and more confidently. Whether it’s a set of sticky summer tires for spirited driving or high-performance all-season tires for year-round versatility, a set of high-performance tires can transform the car’s driving dynamics and make it more enjoyable to drive.

Carbon Fiber Body Panels

Carbon Fiber Body Panels
Image Credit: Street Bandito/Youtube.

Replacing stock body panels with lightweight carbon fiber counterparts can reduce the vehicle’s weight and improve its power-to-weight ratio. Whether it’s a carbon fiber hood for reduced weight over the front axle or carbon fiber fenders for improved aerodynamics, carbon fiber body panels can enhance the car’s performance capabilities and give it a more aggressive appearance.

Performance Tuning

Accident Inspector Inspect damage car caused by car
Image Credit: Shutterstock.

Performance tuning involves reprogramming the vehicle’s engine control unit (ECU) to optimize fuel and ignition timing, as well as adjust boost pressure and air/fuel ratios. While performance tuning may require specialized software and equipment, the result is a significant increase in horsepower and torque that can transform the car’s driving characteristics and responsiveness.

Track Day Upgrades

cropped view of mechanic holding brake pad near assembled disc brakes
Image Credit: LightField Studios/Shutterstock.

Track day upgrades, such as upgraded brakes, suspension components, and safety equipment, can improve the car’s performance and reliability on the track. Whether it’s a set of high-performance brake pads for improved stopping power or a roll bar for added safety in the event of a rollover, track day upgrades can enhance the car’s performance capabilities and make it more competitive on the track.

Author: Madison Cates

Title: Managing Editor


Research journalist, Freelance writer, Managing editor

  • Expertise: automotive content, trending topics.
  • Education: LeTourneau University, Bachelors of Science in Business Administration.
  • Over 400 articles and short news pieces published across the web.

Experience: Madison Cates is a journalist located in the great state of Texas. She began writing over eight years ago. Her first major research piece was published by the Journal of Business and Economics in 2018. After growing up in a household of eight brothers and a dad who was always restoring old Camaros, she naturally pivoted her freelance career into the automotive industry. There, she found her passion. Her experience paved the way for her to work with multiple large corporations in automotive news and trending topics. Now, she now finds her home at Wealth of Geeks where she proudly serves as Managing Editor of Autos. Madison is always down to geek out over the latest beautiful cars on the market, and she enjoys providing her readers with tips to make car ownership easier and more enjoyable.

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