Service & Repair

Regular Maintenance, Tires, Suspension, Brakes, & More!

Dyno Tuning

Professional engine calibration available.

Engine Builds

Brand new, or we can rebuild yours.

Advanced Diagnostics

We can diagnose and fix the toughest issues!

Service & Repair

Call us at (207) 517-5555 to schedule an appointment today! Daily driver or race car, classic or brand new, we've got you covered! You can also use our online form to request an appointment. 

Performance Upgrades

From turbo upgrades or installation, to supercharger installation, to camshaft installation, we can handle it all for your competition or classic vehicle. And, we offer CARB legal upgrade paths for modern street cars.

We have the resources in-house to take your project from concept to delivery.  We provide consultation with each project to understand your specific needs and meet your goals!

Advanced Diagnostics

We offer full electrical & mechanical diagnostic capabilities for European, Japanese, and Domestic vehicles. Have a daily driver or project that doesn't run the way you would like it to? Reach out to us to see how we can help!


I had a terrific experience with Portland Performance.  The service was professional, honest, and transparent from the very first call to the moment I drove my car away.  Ryan went above and beyond helping me with my vehicle, something that you don’t find with typical shops or dealerships.

M. O’Connor

Amazing attention to detail. You will never feel hurried on any large repair decisions. Ryan knows his stuff and goes the extra mile to ensure your vehicle is fixed correctly and most importantly that the customers happy as well.

J. Blais

If you want professional/dealership quality work, but not at dealership price. Look no further than Portland Performance.

P. Desmond

Ryan always provides high quality service. We have taken our cars to him many times. He does a great job explaining what's wrong and what the options are to fix the problem. If you want an honest technician who knows what he's talking about, check out Portland Performance!

J. Fehlau

Ryan swapped out a transmission for me. Quick, accurate, and excellent customer service.

G. Vachon