Automobile · Performance Tuning & Repair

EFI Motorsport

20 Rescue Ln, Somersworth, New Hampshire, 03878

Google Maps Updated: 19 May 2026
Authenticity Score: 84/100
About

EFI Motorsport is a go-to for performance enthusiasts, especially those with European cars like Audi and BMW. Customers love the technical expertise, dyno services, and the passion the team has for their work. While there are a few negative reviews regarding specific mechanical issues or communication, the overall sentiment is that they are a top-notch shop for performance upgrades.

Our Review Process
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19
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We analyze 77 public reviews for EFI Motorsport using our data models and filter out spam to highlight only authentic feedback.

Performance Scores
Service Quality 85/100
Transparency 75/100
Pro Tip

If you are doing performance mods, be very clear about your goals and budget upfront to ensure the best results.

In-house dyno
Specializes in Audi/BMW
Pros & Cons

✓ What Works Well

  • Expert performance tuning
  • Knowledgeable and passionate staff
  • In-house dyno services

✗ Areas to Improve

  • Occasional mechanical errors
  • Communication can be hit or miss
  • High-end pricing
Frequently Asked Questions
  • Do you tune European cars?
  • How long does a stage 1 tune take?
  • Can you handle general maintenance?
User Feedback

True enthusiasts and motorheads.

My car runs better than ever.

Professional and honest.