Performance

Our truck performance accessories cover both gas and diesel platforms — including 6.7L Cummins, 6.6L Duramax, 6.7L and 6.0L Power Stroke, 5.7L HEMI, 5.0L Coyote, 3.5L EcoBoost, and 5.3L/6.2L GM V8 engines. Whether you need the best performance upgrades for your diesel truck, a cold air intake and exhaust combo for your F-150, or a DPF delete kit for your Cummins 6.7, every product is matched to your exact year, make, model, and engine configuration. We stock Banks Derringer tuners for Super Duty, MBRP exhaust systems for Ram 2500, and diesel performance parts for Duramax — all from brands trusted by truck owners across Canada.

Cold Air Intakes, Exhaust Systems, Tuners & Diesel Upgrades

Build your power package starting with a cold air intake from our Air Intake Systems collection — featuring aFe Momentum GT, Momentum HD, and Magnum Force intakes for F-150, Ram, Silverado, Sierra, Tacoma, and Tundra. Pair your intake with a cat-back or turbo-back truck exhaust system from our Exhaust collection, with options from MBRP, Borla, Magnaflow, and Flowmaster for both gas and diesel trucks. Add a performance tuner or throttle controller from our Programmers collection — including SCT, Banks Power, Bully Dog, and Sprint Booster for horsepower gains, fuel mapping, and DFM/AFM disable functionality.

Monitor your engine vitals with pyrometer, boost, transmission temperature, and oil pressure Gauges from AutoMeter, plus vehicle-specific A-pillar gauge pods for F-150, Super Duty, Ram, and Silverado. For truck turbo upgrades, DPF delete kits, EGR delete kits, and diesel fuel system components, browse our Fuel Systems collection for AirDog, FASS, and Titan Fuel Tanks. We also carry Oil Filters from aFe Power for Duramax, Cummins, and Power Stroke diesel engines.

Complete your performance build with a lift or leveling kit from Suspension, a set of aftermarket rims and tires from Wheels, or front-end upgrades like grille guards and bumpers from Exterior. For towing-focused builds, pair your performance upgrades with a 5th wheel or gooseneck hitch from Towing. And for LED lighting, remote starters, and audio systems, browse Electronics.

What's Included in Our Truck Performance Parts Collection

• Cold air intakes — aFe Momentum GT, Momentum HD, Momentum XP, Magnum Force, and Takeda intake kits for F-150, Super Duty, Ram 1500, Ram 2500/3500, Silverado, Sierra, Tacoma, Tundra, Titan, Wrangler, and Bronco in both gas and diesel configurations
• Exhaust systems — cat-back, turbo-back, DPF-back, and diesel exhaust systems from MBRP, Borla, Magnaflow, Flowmaster, and aFe for Cummins 6.7L, Duramax 6.6L, Power Stroke 6.7L/6.0L, 5.7L HEMI, 5.0L Coyote, and 3.5L EcoBoost engines
• DPF & EGR delete kits — Flo-Pro and BD Diesel delete kits and delete pipes for Super Duty, Ram 2500/3500, and Silverado/Sierra HD diesel trucks
• Performance tuners & programmers — SCT X4, Banks Derringer, Bully Dog BDX, Hypertech Spectrum, EZ Lynk, and Range AFM/DFM disablers for gas and diesel trucks
• Throttle controllers — Sprint Booster and Banks Pedal Monster for instant throttle response improvement on F-150, Ram, Silverado, Sierra, Tacoma, Tundra, and Titan
• Turbo upgrades — BD Diesel Screamer turbos and stock replacement turbo kits for Cummins 6.7L and EcoBoost 3.5L
• Gauges & A-pillar pods — AutoMeter pyrometer, boost, trans temp, oil pressure, and fuel pressure gauges with vehicle-specific A-pillar mounting pods for F-150, Super Duty, Ram, and GM trucks
• Fuel system upgrades — AirDog fuel air separation systems, FASS drop-in fuel pumps, Titan auxiliary fuel tanks, and high idle control modules for diesel towing applications
• Speedometer calibrators — Hypertech and Rough Country inline calibrators for correcting speedometer readings after tire size or gear ratio changes

Why Choose Lethal Auto

Every truck performance part at Lethal Auto is matched to your specific engine, drivetrain, and emissions configuration — with verified fitment, a lowest price guarantee across Canada, and expert support from real truck enthusiasts. Whether you are building a diesel performance package for towing or adding a cold air intake and exhaust combo to your daily driver, our team is available Monday to Friday at 306-717-3959 to help you select the right combination of upgrades for your truck.

Frequently Asked Questions

What are the best performance modifications for a diesel truck?

The most impactful diesel performance modifications are a cold air intake, a performance exhaust system, and a tuner or programmer. A cold air intake improves airflow to the engine, a larger-diameter exhaust reduces backpressure and improves exhaust gas flow, and a tuner adjusts fuel mapping and timing for increased horsepower and torque. For diesel trucks used for towing, adding a fuel air separation system and EGT gauge gives added protection and monitoring under heavy loads.

Should you install a cold air intake and exhaust system together?

Installing a cold air intake and exhaust system together delivers better results than either upgrade alone. The intake improves airflow entering the engine while the exhaust improves airflow leaving the engine — allowing the engine to breathe more efficiently on both sides. Adding a tuner on top of the intake and exhaust allows the engine computer to take full advantage of the improved airflow with optimized fuel and timing calibrations.

Do performance tuners and exhaust systems void your truck warranty?

Aftermarket performance parts can potentially affect warranty coverage on related components if the dealer determines the modification caused the failure. However, under the Magnuson-Moss Warranty Act, a dealer cannot void your entire warranty simply because an aftermarket part is installed — they must prove the specific modification caused the specific failure. Keeping records of professional installation and using reputable brands like Banks Power, aFe, and MBRP helps protect your coverage.

What is the best first performance mod for a pickup truck?

A cold air intake is the most common and effective first modification for both gas and diesel trucks. It delivers noticeable improvements in throttle response and engine sound with a straightforward bolt-on installation that typically takes under an hour. For diesel trucks, an exhaust system upgrade is equally impactful as a first modification due to the significant reduction in backpressure and exhaust gas temperatures.

What performance upgrades help with towing on a diesel truck?

For towing, the most effective performance upgrades are an exhaust system for reduced EGTs, a fuel air separation system for cleaner fuel delivery, an EGT gauge for monitoring exhaust temperatures under load, and a tuner set to a tow-specific calibration. Auxiliary fuel tanks from Titan Fuel Tanks also extend range significantly on long towing runs. Browse our Towing collection for hitches, weight distribution systems, and brake controllers to complete your tow setup.

Do you need an intake, exhaust, and tuner together for best performance gains?

Each upgrade delivers gains on its own, but combining all three — cold air intake, exhaust system, and performance tuner — produces the largest total increase in horsepower and torque. The intake and exhaust improve the engine's mechanical ability to move air, while the tuner optimizes the fuel and ignition calibrations to match the increased airflow. On diesel trucks, this combination can add 50 to 150+ horsepower depending on the engine platform and tune level selected.