Simple and easy
The process was very easy and the instructions were very simple to understand.
By Milton D.
Sunday, November 8, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
24 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
We create custom engine calibrations for BMW E-Series, F-Series, and G-Series. We offer our services for the N20, N26, B48, N54, N55, B58, S55, B58, and S58 engines.
EJS Tunes (ejstunes.com) has 24 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
Showing 20 reviews with 5 stars · Clear filters
The process was very easy and the instructions were very simple to understand.
By Milton D.
Very fast and professional!
By bryce
helped me with my account issues and got the tune done fast. Definitely would recommend to anyone. Love my tune
By Eric P.
Best tuner out there flames crazyyyy
By tyson S.
Great service. Great response time. Literally responded in 15 minutes on a Sunday night and had the tune uploaded onto my car 10 minutes after that. Great guy great tune!
By Charlie R.
Best tuner super easy
By Luis Q.
Pretty fast check out and quick customer service. Got my tune less than 5 min plus I bought the tune at night like 7pm
By Luis L.
Fast service nice friendly helpfull employees
By tom N.