To mod or not to mod? That is the question.
Aftermarket vehicle modifications are popular among auto enthusiasts, especially those who want to put their own “stamp” on the vehicle. In many cases, they can improve the overall driving experience. However, many popular modifications (like spoilers and bold colors) can seriously hurt your vehicle’s resale value.
If your goal is to get as much out of your vehicle when the time comes to sell it, it’s important to approach aftermarket vehicle modifications very carefully. Read on for our tips based on what we’ve seen in the pre-owned market.
The advantages of aftermarket vehicle modifications
Let’s start with the question: why invest in modifications in the first place? Are they actually worth the time and effort to install? In some cases, yes. When things go right, here are some advantages you can get from vehicle upgrades.
Enhanced performance
Many aftermarket vehicle modifications significantly enhance vehicle performance. The most notable include suspension upgrades for handling and stability, intake and exhaust systems to improve engine efficiency, and even turbochargers to boost horsepower and torque.
However, failure to choose modifications designed for your specific make and model can have the opposite effect: not only poor performance, but also safety and reliability concerns.
Improved personalization
There’s no question that aftermarket modifications are a great way to make a vehicle your own. Whether we’re talking paint jobs, body kits, or interior upgrades, you really can tweak your colors, materials, and overall feel to become exactly what you want.
The problem is that one person’s trash is another person’s treasure—or, rather, the other way around. You may like a nice, bold fuchsia paint job, but few others do. Too much personalization, then, often comes at the expense of marketability.
Increased functionality
Adding functionality through aftermarket modifications can significantly enhance the utility and versatility of your vehicle. For example, installing a roof rack expands storage capacity, which is particularly useful for camping trips or transporting sports equipment. Upgrading the vehicle’s lighting systems with LED or specialized fog lights can improve visibility during adverse weather conditions. And so forth.
You’ll want to make sure any modifications align with the vehicle’s structural integrity. Otherwise, you may end up putting undue wear and stress on other vehicle components.
Greater resale value
Depending on which modifications you choose, you can theoretically improve your vehicle’s resale value. For example, some off-road modifications can command greater market value among performance-seeking buyers.
However, if resale value is your top objective, it’s a good idea to choose modifications that appeal to the broader market. Otherwise, you risk not being able to find a buyer when the time comes.
The biggest mistakes when choosing aftermarket vehicle modifications
When choosing a particular vehicle modification, it’s critical that you carefully weigh its pros and cons. Failure to do so can result in a decrease in your vehicle’s value, which can come back to bite you if you ever try to resell. Plus, botched performance upgrades can damage your vehicle and put you into an unsafe situation.
Non-approved engine modifications
Engine modifications not approved by the manufacturer or local regulations can have significant implications for your vehicle’s safety and functionality. These can alter the balance of the engine, leading to increased wear and tear. Additionally, you may end up exceeding emission standards, resulting in fines and legal implications.
Before proceeding with any engine modification, consult with professionals to ensure all changes comply with both manufacturer guidelines and local laws.
Oversized rims
While oversized rims are a common modification, they can make for a harsher ride quality, strain the suspension and steering components, and even increase the risk of tire damage. Any rim modifications should be done carefully so you don’t end up causing unnecessary damage that could shorten the life of your vehicle.
Poor suspension modifications
Suspension modifications only add value when done properly. Poor modifications, which are far more common, can undermine your vehicle’s safety and performance. Suspension challenges typically stem from:
- An altered center of gravity, which affects vehicle stability
- Incompatible suspension components, which result in excessive wear on tires, axles, and drive systems
- Inadequate shock absorption, which increases wear on other vehicle components
Any suspension modifications must be put into place by a certified technician who has access to compatible parts. Otherwise, you end up seriously hurting your vehicle’s integrity and driving down its long-term value.
Tinted windows
Although popular, tinted windows often come with their own set of risks. Not only are there legal limits on how tinted your windows can be, but if they’re too dark they can seriously impede visibility.
Spoilers
Yes, spoilers have an aesthetic appeal. But most buyers aren’t interested in a vehicle that looks like it’s ready for a drag race. Additionally, improperly mounted spoilers can actually increase drag and reduce fuel efficiency, not to mention have a risk of detaching during transit. Overall, it’s best to avoid spoilers altogether if you want to maximize your vehicle’s resale value.
Non-standard paint colors, wraps, or body kits
Likewise, a glaringly bright purple or a flame-patterned wrap will probably only appeal to a unique handful of buyers. Most are looking for standard vehicle colors, and the further you deviate from those expectations, the more difficult your vehicle will be to sell. The same goes for custom body kits.
Generally speaking, you’ll want to think carefully before adding any aftermarket modifications. As long as they’re done for the right reasons and are in accordance with safety guidelines, they can enhance your vehicle’s performance and value. But make sure to avoid these common mistakes so that you don’t end up regretting your choices down the road.
5 aftermarket vehicle modifications that will increase your vehicle’s resale value
So let’s now walk through five examples of aftermarket vehicle modifications that can increase its resale value and increase your odds of finding a buyer. As you’ll notice, the key is subtlety and quality. Make sure you’re working with a certified technician who understands your vehicle, its component parts, and can help you avoid unintended consequences.
1. High-quality sound system
Installing high-quality, brand-name sound components—we’re talking Bose or Harman/Kardon here—can substantially improve sound quality and depth. For buyers seeking a luxurious feel, this can be a serious value-add.
Make sure you choose a professional to do the installation, as this will help you avoid potential electrical issues. It’s also a good idea to retain the original components so the buyer can revert to stock condition if they so desire.
2. Lighting systems
Advanced lighting systems, like LED or HID headlights, help improve both your vehicle’s aesthetics and functionality. By increasing visibility at night or during adverse weather, upgraded lighting can improve your vehicle’s safety. This can appeal to buyers of all types, but especially families.
3. Leather upholstery
Leather interiors give off a sense of luxury and comfort, which can be attractive to many buyers. It’s essential to select high-quality leather that’s installed by a skilled craftsperson to maintain both aesthetics and durability. Additionally, well-maintained leather seats are easier to clean, which can also improve your vehicle’s appeal.
4. Alloy wheels
Alloy wheels aren’t just an aesthetic choice. Since they’re lighter than standard steel wheels, they can improve handling and reduce wear on suspension components. When selecting alloy wheels, it is crucial to choose the correct size and fit for your vehicle. This will help you prevent alignment and clearance issues.
5. Performance tires
By providing better traction, responsiveness, and braking, performance tires can improve your vehicle’s handling, safety, and resale value. Make sure you choose tires that are compatible with your vehicle’s specifications.
Additionally, regular tire rotation and alignment can maximize your tires’ lifespan and preserve their value over time.
Final thoughts on aftermarket vehicle modifications
When considering aftermarket vehicle modifications, you should carefully evaluate their cost-effectiveness and potential return on investment, while also choosing those upgrades that make your vehicle more enjoyable.
Additionally, you should document all modifications and keep your receipts to give future buyers peace of mind regarding the quality and reliability of those upgrades.
If you’re looking for a place to sell your upgraded vehicle for a reasonable price, consider Bachrodt on State. Reach out to our team today.

