Top Catalytic Muffling Converters

STP Gas Treatment (3 pack)

  • STP Car Petrol Treatment 200ml (CLO51200EN) New..
  • STP Petrol Treatment used regularly helps save fuel by keeping fuel intake systems clean of harmful deposits.
  • fight rust and corrosion in the fuel system.
  • reduce exhaust emissions. Use every 1000 miles / 1600 kms. Safe to use with other STP additives..
  • Suitable for all classic and modern engines, catalytic converters..
Check Stock

HEET SA16-12-12PK Starting Fluid, 10.1 av. oz. (Pack of 12)

  • Contains upper cylinder lube and corrosion inhibitor.
  • Safe for all oxygen sensors and catalytic converters.
  • Great for lawnmowers, snowmobiles, snow blowers, and construction equipment.
Check Stock

BOOSTane Professional Octane Booster 32oz (2 Pack)

  • Safe for catalytic converters & oxygen sensors.
Check Stock

Klotz KL-628 Octane Boosters

  • Promotes clean fuel burn for fewer emissions.
  • Safe for turbos, oxygen sensors and catalytic converters.
  • Stens one-year ensures reliability and performance for every part.
Check Stock

Stens 051-635 Octane Booster, Black

  • Promotes clean fuel burn for fewer emissions.
  • Safe for turbos, oxygen sensors and catalytic converters.
  • Suitable for use in fuel injected and carbureted engines.
  • Provides more boost than most other brands.
Check Stock

BOOSTane Premium Octane Booster (8 Pack)

  • Will not harm sensors or catalytic converters.
  • Increases octane level and restores lost horsepower.
Check Stock

Liqui Moly 20234 Speed Tec Gasoline - 250 ML

  • Provides more driving pleasure through optimized performance yield.
  • The engine starts better and even runs more smoothly.
  • Suitable for all 2- and 4-cycle gasoline engines.
  • Tested safe with catalytic converters and turbochargers.
Check Stock

Mobil1 123875 ESP Formula Engine Oil 0W-40 6 quarts

  • Reduce particulate buildup in diesel particulate filters.
  • Reduce poisoning of gasoline catalytic converters.
  • Reduce deposits and sludge buildup to enable long and clean engine life.
  • Reduce oil aging, allowing extended drain interval protection.
Check Stock

Liquimoly 2037 Pro-Line Engine Flush 500 ml 6 Pack

  • Easy way to clean and flush the oil systems of gasoline and diesel engines.
  • Neutral to seals and other materials installed in the engine.
Check Stock

Permatex 80335 Muffler and Tailpipe Sealer, 3 oz.

  • Seals holes and leaks in mufflers, tailpipes and around joints.
  • Temperature Range: up to 2000°F (1000°C).
  • Suggested Applications: Mufflers, tailpipes, joints, and catalytic converters.
  • exhaust system must be cool before applying.
Check Stock

Liqui Moly 20004 Hydraulic Lifter Additive

  • Improves the lubrication properties of the oil.
  • Suitable for use in vehicles with turbochargers and vehicles with catalytic converters.
  • Prevents engine noises caused by hydraulic tappets.
Check Stock

Niteo Motor Medic M3911 Liquid Fire Quick Starting Fluid - 7.5 oz.

  • Contains upper cylinder lube and corrosion inhibitor.
  • Safe for all oxygen sensors and catalytic converters.
  • Great for lawnmowers, snowmobiles, snow blowers, and construction equipment.
Check Stock