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August 2024 by Mike “Motorat”
Jeff is a great guy with one of the last old school shops in Simi and his prices are super reasonable.
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August 2024 by sean keene
Thank you Jeff Extremely happy with the results great work
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April 2024 by Fred Palacios
One world exelent service
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March 2024 by John Taylor
Great place. 10/10
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January 2024 by ken madsen
Jeff is the best! Professional and courteous.
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November 2023 by Anthony Attias
Jeff is a magician! I have a 1954 ford 2 door coupe with a 90s 302 with fuel injection. He ran header back dual exhaust with provisions for O2 sensors. He placed all the piping with meticulous care. I was so impressed with his work I forgot to take photos of it up on the lift lol. I couldn't be happier with how it turned out! He was very reasonable. I wouod happily and confidently recommend championship muffler! Thanks Jeff!
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September 2023 by Terry De Silva
Recently Jeff installed a a front hitch receiver in my truck. I did not know about this place first, so I went to a couple of companies who do such work in the city.They had no idea how to give an estimate for this work since they were not familiar with my truck. Jeff on the other hand, looked at the instructions I got from the etrailer, where I planned to purchase the hitch receiver. Then he gave me a quote and asked me to bring the truck when I receive the parts.A week later I went to him with the hitch receiver. He installed it with in an hour, where others told me it would take 3 hours to install it. Jeff is an honest man, who does good work. It is hard to find people like him today.
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September 2023 by vince g.
tried to get 2 holes in my mid-pipe fixed but won't work on the car if it has no mufflers that's crazy. don't go to this shop if you have no mufflers or if you don't have a catalytic converter lol
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June 2023 by S M.
Jeff is great! I called in the afternoon and he was able to see me for the install of a cat-back muffler system that I had purchased. Pricing was reasonable and you can see Jeff's experience shine as soon as he starts to work. My install required cutting and welding as the previous owner had put a custom made exhaust that made "stock" mounting not a possibility. Jeff was not fazed and got the job done, while I stood there watching in less than an hour.
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April 2023 by F You
JUST LEFT FROM CHAMPIONSHIP MUFFLER IF I COULD ADD MORE THAN 5 STARS I WOULD HANDS DOWN BEST SHOP IN SIMI VALLEY..
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April 2023 by J C.
Can't say enough about Jeff, he did a modification on my dual exhaust... a bit tricky but he made it look easy..his prices are quite reasonable... super nice guy... definitely recommend his shop
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March 2023 by Jansen Abarabar
Jeff made quick work of my exhaust needs and quality of work is superb. Well exceeded my expectations. Went beyond what I had originally asked for to make sure I left with a system I was happy with. More than reasonable with his prices for the work he did. I will definitely come back if I require his services again. Wonderful person, honest and awesome at his craft.
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March 2023 by Richard G.
Jeff installed a new muffler and welded up some exhaust leaks for a VERY reasonable price. Excellent work and service, thank you!
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February 2023 by Scott mcarthur
Jeff is a good guy and does extremely clean work. I use him for my personal vehicles and for my customers vehicles when they want a true custom exhaust for their vehicles.
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February 2023 by Daniel Winters
Honest, affordable, and quick. This man is a unicorn amongst mechanics.
