High performance tuning · Newmarket
Built right,
not just fast.
AGP Speed & Custom is a custom auto performance shop specializing in domestic vehicles. Tuning, fabrication, restoration and performance consultation happen under one roof, and our mechanics treat every job like their own project.
What we do
From dyno tuning to custom metalwork — end-to-end performance work for domestic vehicles, done in-house.
Installations
We install everything we sell — including parts you sourced yourself.
Learn moreTuning
A one-stop tuning shop calibrating GM, Chrysler and Ford vehicles — far more than a dyno pull.
Learn moreFabrication
Custom fabrication for unique builds and one-off requests.
Learn moreRestoration & Custom Builds
Full restoration and custom build service, start to finish.
Learn morePerformance Consultations
We help you plan performance upgrades at any budget, in the right order.
Learn moreSnowmobile Parts & Tuning
Performance upgrades and ECU/ECM tuning for Polaris, Yamaha, Ski-Doo and Arctic Cat.
Learn more“Great service. Went by and talked to Nick about an issue I was having. He offered to come on a road test, had him tune the car and it runs better than ever.”
Angelo Pallotta
Domestic performance specialists
GM, Chrysler and Ford are what we live in every day — swaps, boost and calibration included.
Everything under one roof
Fabrication, installation and tuning in the same shop, so a build never waits on someone else.
Treated like our own
Our mechanics are car people first. Every job gets the same care we'd give our own project.
What customers say
Their dyno-tuning knowledge and fabrication work on my LS swap were exactly what the build needed.
Two builds with AGP now. Big horsepower and torque gains, and both boosted cars have stayed reliable.
Another shop left my LS3 swap with problems. AGP sorted it out and got the car running right.
Thrilled with how the swap turned out. The crew treated the car like it was their own.
Long-time customer. Nick's tuning and the shop's professionalism have been the same across every dyno day.
Had the AGP Stage 3 package installed. Great drivability afterwards and a quick turnaround.
Nick was honest and kept me in the loop the whole time. No unnecessary upselling.
Went by and talked to Nick about an issue I was having. He offered to come on a road test, tuned the car and it runs better than ever.
Brands we build with
Stainless Works
Bikeman Performance
aFe Power
Whipple Superchargers
DiabloSport
Dynojet
EFILive
Kooks Headers
Brian Tooley Racing
Injector Dynamics
Precision Turbo
K&N Filters
Procharger
HP Tuners
SCT Flash
Corsa Performance
Got a project in mind?
Tell us what you are building and we will put a plan and a number to it. When you're serious about power.
Get in touch