Speed Shop · Acworth, GA · Est. 2014
Turning Dreams Into Reality
Honda & Acura specialists, LS swaps, custom turbo kits, in-house fabrication and dyno tuning. One shop for just about everything.
- Best of Georgia 2025
- DynoJet 224xLC In-House
- Hondata Dealer
What We Do
One Shop. Just About Everything.
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.
All Services
Honda & Acura
Our specialty. Mostly B-series and K-series builds, and we're getting into the newer Hondas now.
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LS & GM V8
We do LS stuff too, across Gen II, Gen III and Gen IV.
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Custom Turbo Kits
Custom turbo kits, tailored to the customer's needs and build.
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Dyno Tuning
In-house dyno tuning. We tune a lot of Holley EFI, Honda, Haltech and other standalone ECUs.
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Fabrication
A lot of fabrication in-house: intakes, catch cans, brackets, downpipes and more.
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Engine Builds
Engine repair, rebuilds and blueprinted builds, plus bay painting and electrical wiring & design.
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Build Consulting
We do a lot of consulting for people's builds.
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Maintenance & Repair
We don't mind general maintenance either, especially on the cars we build and take care of.
Learn MoreOff The Dyno Sheet
The Shop, By The Numbers
From our own shop and our in-house DynoJet 224xLC.
Platforms
What We Build & Tune
ECUs We Tune
- Holley EFIStandalone
- HondaHondata dealer
- HaltechStandalone
- Other standalone ECUs
From The Bay
Recent Work
Parts For Sale
Off The Shop Shelf
Spare and leftover parts from the shop, up for grabs. New parts get posted as they come off the shelf.
No parts posted right now. Check back soon, or call the shop and ask what's on the shelf.
Call The Shop
Award Winner
Best of Georgia 2025
Voted a Best of Georgia 2025 winner, and chasing it again in 2026.
Since 2014
One Shop For Just About Everything
ATL Powerhouse Performance is a speed shop in Acworth, GA, run by owners Harrison and Erik. Engine tuning, turbocharging, suspension upgrades, custom fabrication and blueprinted engine builds, with dyno tuning in-house.
- Hondata dealer
- Snap Finance available
- Best of Georgia 2025 winner
Financing
Financing Available Through Snap
Finance repairs and upgrades with Snap Finance. Ask us how to apply.