How Do Aftermarket Modifications Affect a Car’s Resale Value?
Aftermarket modifications typically reduce a car’s resale and trade-in value by 5% to 25% since standard appraisals are based on factory configurations. While OEM-style upgrades might maintain or slightly increase value, custom mechanical, suspension, or cosmetic changes often narrow the buyer pool and necessitate costly reconditioning. Extensive modifications generally result in lower offers due to concerns about reliability and additional repair expenses.