J's Performance, Inc.

J's Performance, Inc. offers engine diagnostics, brake repair, suspension repair, and auto repair in Dubuque.

β˜… β˜… β˜… β˜… β˜… 4.3 4 reviews
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πŸ“ Dubuque, IA Today Β· 7:00β€―AM – 5:00β€―PM Unclaimed listing

J's Performance, Inc. offers engine diagnostics, brake repair, suspension repair, and auto repair in Dubuque.

Engine Diagnostics Brake Repair Suspension Repair Auto Repair

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Primary location5205 Pennsylvania Ave, Dubuque, IA 52002
Reviews4 reviews
Hours7:00β€―AM – 5:00β€―PM

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Services

Engine Diagnostics

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Brake Repair

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Suspension Repair

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Auto Repair

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Reviews

4 public reviews

JJG Dec 12, 2025
5.0

JJG

J diagnosed and fixed the electrical shorting in my brand new distributor on my brand new 1937 Ford 5 window coupe.

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Kaleb M. Aug 24, 2025
2.0

Kaleb Marks

wanted my project truck finished said they would and didn’t. wiring job was horrible connections slid out. And on my other truck wanted to figure out issue and paid me 300$ to plug in a wire. Don’t recommend

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Jacob H. Feb 25, 2025
5.0

Jacob Hartman

Heard good reviews so I took my 2023 Audi A4 in for a resonator and muffler delete. The customer service was phenomenal, I was able to speak with a mechanic about exactly what I wanted done beforehand, and the price I was given came out $50 cheaper than the initial estimate I was provided. Not to mention my car sounds even better than I had anticipated. I will be returning in the future with no hesitationπŸ«±πŸ»β€πŸ«²πŸΌ

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Carter A. Jan 15, 2024
5.0

Carter Allen

Came in and needed some air in my tires, called multiple different shops and they said they wouldn’t do it. Without hesitation these kind folks aired up my tires and wouldn’t even accept a tip from me. I know it’s a small thing but it helped me a ton. Very appreciative of their services, and would highly recommend to anyone and everyone.

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