AUTOMOTIVE REPAIR SHOP CONSULTING
Drive More Profit From Your Shop
With years of experience managing and optimizing automotive service departments, we specialize in helping automotive repair shops streamline operations, increase profitability, and enhance customer satisfaction. Whether your shop is struggling with efficiency, pricing, staffing, or customer retention, we provide hands-on consulting tailored to your unique challenges.
About Us
Industry Experience You Can Actually Use
Founded by a 20-year veteran of the automotive service industry, Miller Performance Group helps repair shops and dealerships increase profitability by fixing internal inefficiencies. We’ve helped both independent shops and large dealerships increase revenue, cut costs, and become ready to scale or sell.
Why We’re Different:
We’re not just coaches — we’ve done the work
We implement and train directly with your team
You get fast, measurable results — not vague advice
Founder: James Miller
James has been in the automotive repair industry since 2005 and has a degree in Automotive Technology and Business Management. Starting as a Technician, then to Service Advisor and finally Service Director for many dealer groups. He is also certified as EV Expert with General Motors and continues ongoing training with specific manufacturers.
His recent work includes:
1) Turning a dealership service department profitable for the first time in its history of almost 15 years.
2) Oversaw multiple dealerships service departments within a dealership group, increasing technician production from 49% to 90% within 45 days of starting.
3) Helped a multi-location independent shop group exit at a premium — all by using the same proven systems Miller Performance Group offers today.
Services
Shop Diagnostic & Assessment
A deep-dive evaluation of your shop's operations, profitability, staffing, and processes. We identify exactly where money is being left on the table and deliver a clear action plan to fix it.
Core Consulting Retainer
Ongoing monthly consulting to implement systems, coach your team, and drive measurable improvements in production, revenue per repair order, and customer retention.
Premium Retainer
Full hands-on partnership including on-site visits, team training, KPI tracking, and direct implementation support. For shops serious about transformational growth.
Service Advisor & Tech Training
Targeted training for your front and back of house — from upsell techniques and customer communication to technician efficiency and workflow optimization.
TESTIMONIALS
CUSTOMER REVIEWS
★★★★★
James helped us increase our technician efficiency from 60% to 90% in under 60 days. I'm sure I will work with him again in the future.
Kevin Johnson- Service Director for Chevrolet, Cadillac, GMC & CDJR
★★★★★
Before James came in, we were busy but not profitable. Within 90 days he identified exactly where we were losing money and helped us fix it. Our net profit increased significantly and we finally feel in control of our numbers.
Amir Shah- Service Director for Ford, Lincoln, Maserati & Alfa Romeo
OUR TEAM
James Miller
Founder & Lead Consultant
James has been in the automotive repair industry since 2005 and has a degree in Automotive Technology and Business Management. Starting as a Technician, then to Service Advisor and finally Service Director for many dealer groups. He is also certified as EV Expert with General Motors and continues ongoing training with specific manufacturers. James founded Miller Performance Group to help both independent shops and dealership service departments run leaner, perform better, and grow profitably — using the same systems that transformed operations across the industry.
Get In Touch
FAQS
What makes Miller Performance Group different from other consulting firms?
Unlike generalist consultants, we come from inside the automotive service industry. We've managed service departments, trained advisors, and turned around underperforming shops firsthand. We don't give advice from the outside — we've done the work ourselves.
How long does it typically take to see results?
Most clients see measurable improvements within the first 30–45 days. Our diagnostic process identifies quick wins immediately while building sustainable systems for long-term growth.
Do you work with both independent shops and dealerships?
Yes — we work with independent repair shops and dealership service departments of all sizes across California and beyond.
