Working Hours
  • Mon 8:00AM - 5:00PM
    Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
    Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
    Sat Closed
  • Sun Closed
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636-441-8121 | 4600 Central School Rd

Electronic Fuel Injection

Electronic Fuel Injection, Saint Charles, MO

Carbureted & EFI For Increasing Performance

High-Performance EFI Auto Repair in Saint Charles

The expert mechanics at Kar Tech know switching to fuel injection often improves the fuel efficiency and performance of older carbureted engines. In newer cars, replacing a single fuel injector with a multi-port fuel injector creates an intense, even flow of fuel on each cylinder when your engine needs it most. Feed your engine the fuel it needs with fuel pumps, fuel filters, superchargers, and turbochargers. Break out of gasoline only feed engines by adding a nitrous kit or cooling methanol injection kit.

To ensure the correct air to fuel ratio, Kar Tech can add a new stock-height replacement intake manifold, cold air intake, and fuel rails. Never run rich or lean with a hood scoop, high-performance air filter, and new O2 sensor. Call Kar Tech and talk to us about increasing your car's performance. When you want performance you need the auto repair experts at Kar Tech located at 4600 Central School Rd.

If you're ready to take your car or truck's fuel injection to the next level, Kar Tech is ready with injectors, manifolds, fuel rails, sensors, and complete performance EFI conversion kits. From BMW to Audi to Corvette, Kar Tech has you covered.

Tuning Old School Carburetors For True Muscle

Your muscle car may be starving for air! Bring it to Kar Tech and find out. Because of operating losses in the intake runner and cylinder with newer unleaded fuels that do not fully vaporize in the combustion chamber, cars tuned to the manufacturer's specifications can run lean. Kar Tech can diagnose if you are actually running leaner than the manufacturer suggested ratio of 14.7:1 air to fuel mixture. Bring your classic car to Kar Tech at 4600 Central School Rd to tune the perfect air to fuel mixture and correct ignition spark for maximum power.

636-441-8121!


What Our Customers Are Saying

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Always good work and fair prices. I have a Tahoe that I purchased new that now has 340,000 miles, and a bunch of Jeeps with 240,000 miles apiece, I credit Kar Tech for giving me the ability to keep my autos on the road so long.

, 05/19/2020

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Knowledgeable, Efficient, and Honest! Kar Tech diagnosed the problem, called me with an estimate, and completed the repair - at a very reasonable price!! I highly recommend this place!

, 05/19/2020

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Great people who have gone above and beyond to get my truck on the road. Honest and very fair. I couldn't ask for anything to have gone better.

, 05/19/2020

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I have used Kar Tech for the last 10 years with 3 different vehicles. I feel so safe and comfortable taking my car to them. I get honest feedback. The prices are great and the service is awesome. They always get me in quick and are great at explaining everything to me. I appreciate having them as my go-to more than they know. Thank you!

, 05/19/2020

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Nice family owned business who knows what their doing!

, 05/19/2020

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Friendly service and great prices. This has been my only mechanic for 15 years at least and will only go to them!

, 05/19/2020

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An honest mechanic is hard to find, and the folks at Kar-Tech are not only honest but very capable and professional.

, 05/19/2020

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Extremely friendly staff. Fixed everything on my car for a very fair price. I couldn't be more happy. Steve works tirelessly to make sure his customers are very satisfied when they leave.

, 05/19/2020

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Friendly, honest, and reasonable mechanic shop. A rarity. Highly recommended.

, 05/19/2020
  • ASE Master Technician
  • NAPA AutoCare Center
  • IDENTIFIX
  • Jasper
  • MITCHELL 1
  • Draeger
  • Motorcraft
  • Car Care Aware
  • Call Us For Service: 636-441-8121