Unlock your vehicle's hidden potential with performance modifications. From bolt-on upgrades to comprehensive builds, Tresl helps you finance the horsepower and handling improvements you've been dreaming about.
Get Financing NowEach modification addresses a specific restriction in your engine's ability to make power.
Replaces restrictive factory airbox with high-flow filter and larger diameter tubing. Draws cooler air from outside the engine bay. Cooler air is denser, containing more oxygen for combustion. Gains vary by vehicle—turbocharged engines see larger improvements.
Larger diameter piping and less restrictive mufflers allow exhaust gases to exit faster. Reduces backpressure, letting the engine breathe more efficiently. Cat-back systems (after catalytic converter) are emissions-legal in most areas.
Reprograms engine computer to optimize fuel delivery, ignition timing, and boost pressure (turbo cars). Factory tunes are conservative for reliability across all conditions. Tuning extracts power while maintaining safe parameters.
Lowering springs, coilovers, and sway bars improve handling by reducing body roll and lowering center of gravity. Adjustable coilovers allow fine-tuning of ride height and damping. Quality matters—cheap kits ride poorly.
Larger intercooler cools compressed air from turbo more effectively. Cooler intake temps mean denser air charge and more power, especially in repeated pulls or hot weather. Essential for higher boost levels.
Replaces restrictive factory downpipe with larger diameter pipe. Reduces exhaust backpressure at turbo outlet, allowing faster spool-up and more top-end power. High-flow catalytic options available for emissions compliance.
Typical progression of modifications for turbocharged vehicles.
Performance modifications may void portions of your factory warranty. Dealers can deny warranty claims if they determine a modification caused the failure. Additionally, some modifications (catless exhaust, deleted emissions equipment) are illegal for street use and will fail emissions testing. Research your local laws before modifying.
Quality performance parts aren't cheap, and proper installation adds cost. Rather than buying budget parts that underperform or installing yourself without proper tools, financing lets you do the build right the first time.
| Amount | 12 Mo | 24 Mo |
|---|---|---|
| $1,000 | $89/mo | $47/mo |
| $2,000 | $179/mo | $95/mo |
| $3,500 | $312/mo | $166/mo |
| $5,000 | $446/mo | $236/mo |
*Estimated at 12.99% APR
Build the performance car you want. Get approved for financing in minutes.