Reputation
Known for doing what others won't.
About
ATL Powerhouse Performance is a speed shop in Acworth, GA, established in 2014.
We specialize in Honda/Acura builds, mostly B-series and K-series, and we're getting into the newer Hondas now. We do LS stuff too: Gen 2, Gen 3 and Gen 4. We build custom turbo kits, tailored to the customer's needs and build, and we do a lot of consulting for people's builds as well.
A lot of our fabrication is in-house: intakes, catch cans, brackets, downpipes and more. We dyno tune, and we tune a lot of Holley EFI, Honda, Haltech and other standalone ECUs. We don't mind general maintenance either, especially on the cars we build and take care of. We try to be a one-stop shop for just about everything. The only thing we don't do is machining, and we have a local shop for that.
The Owners
Engine repair and rebuilds.
Dyno time, tuning and dyno rental.
The Shop Miatas
Both Miatas are ours, owned by Harrison and Erik.
Off The Dyno Sheet
Award Winner
Voted a Best of Georgia 2025 winner, and chasing it again in 2026.
Why ATL Powerhouse
Reputation
Known for doing what others won't.
Summit Racing
First import shop to put an import car on display at Summit Racing.
Dyno
We will dyno just about anything.