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Rex Kaaihue-Irwin
Nov 21, 2025
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5.0
Only shop I trust on island. THE BEST tech, always updates me and send photos and videos of what’s going on!! HIGHLY recommend!
About this business
Underground Auto LLC is a full-service auto repair and performance shop serving Honolulu, Hawaii (Oahu). Underground Auto LLC provides core services including oil and fluid changes, brake jobs, suspension service, engine diagnostics, and tire replacement. Underground Auto LLC also offers specialized services such as engine swaps, engine rebuilds, forced induction installation, performance upgrades, camshaft installations, and racing accessory installations. The business features certified automotive technicians, vehicle inspections before service, and supports track and autocross vehicle preparation.
Auto Repair Shop
Services
Services and categories listed for this business.
Oil Changes
Fluid Changes
Brake Jobs
Suspension Service
Engine Diagnostics
Tire Replacement
Engine Swaps
Engine Rebuilds
Forced Induction Installation
Performance Upgrades
Camshaft Installations
Racing Accessory Installation
Location
Address and directions for this business.
Questions & answers
Helpful answers
Quick answers from this business profile.
What types of engines can Underground Auto LLC replace or swap? +
Underground Auto LLC offers experienced work replacing a variety of engines including common four-cylinder motors, heavier V8 motors, and high-revving rotary motors.
Does Underground Auto LLC provide vehicle inspections before service? +
Yes, Underground Auto LLC provides inspections before any action to assure customers know the health, stability, and condition of their engine and vehicle.
Does Underground Auto LLC prepare vehicles for racing applications? +
Yes, Underground Auto LLC prepares vehicles for track and autocross by inspecting suspension components, bearings, engine fluids, and torque specifications.
Reviews
5.0
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3 reviews
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Cyshalynn Villanueva
Feb 6, 2026
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5.0
My other half brings in his vehicles and every-time they do an amazing job on them. Best place for auto repairs 10/10 And customer service is always on point. He goes through everything with you on what he changes, and he lets you look with him. 100% recommend!
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Matthew Miwa
Dec 31, 2025
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5.0
Orion at Underground Auto was recommended to me through various shops and friends for his attention to detail, work ethic, and character. I personally went to him for various mechanical issues but most recently for a harrop supercharger install on my 2nd gen BRZ. With this being the first install on the island, I can say he did nothing but an excellent job and was thorough in updating me along way. To any enthusiast wondering who to trust for your next big job, I’d recommend this shop in an instant. Thank you to the Orion and Underground Auto, I’ll be back for any job, big or small!
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