01
Measure it
Dyno numbers cut through guesswork. Power should be proven, not promised.
Welding isn't just a skill — it's the brand.
From precise welds on custom exhausts to dyno-backed tuning and collision restores, we treat every job like a performance build. The shop combines specialty work — dyno tuning, auto body & collision, custom fabrication — with the full mechanical services drivers expect from a trusted bay.
Located at 7 Heritage Rd, Unit 3, Markham, ON L3P 1M3, we're set up for Markham and GTA drivers who want sharp results without soft excuses.
What drives the shop
02
Fabricate it
Custom exhaust and metalwork are built to fit, flow, and look intentional.
03
Restore it
Body and mechanical work keep the whole car as sharp as the performance upgrades.
From the drivers
What they say
“JC did such an amazing job on my 1991 Firebird. He swapped out the muffler and took his time to make sure it was done correctly. He definitely treated it like it was his own car. Very knowledgeable and fair with pricing. Will definitely be going back for other things and will definitely recommend his shop to the car clubs. Thank you again JC, love the new sound on the Firebird. I really appreciate everything you did.”
“Brought a car in for inspection at Ultimate Performance. Received great service, the tech was very knowledgeable and carefully walked me through his inspection notes. He answered all my questions and gave me honest advice. Highly recommend place. Thank you guys!”
“Very knowledgeable staff and gives a fair quote! I love the professional work they put in and knows how to work on anything you need done. S+ tier auto repair shop and I highly recommend!”
See the shop. Call the bay.
7 Heritage Rd, Unit 3, Markham, ON L3P 1M3 · Mon–Sat 8:00 AM – 8:00 PM