🔧
Engine
- Teter Delta closed deck block
- +1mm valves, full head work
- GSC S2 cams
Born from a passion for performance and precision, Sidesteppin’ Builds is your source for clean, aggressive Subaru builds. We specialize in high-quality fabrication, part sourcing, and detail-driven custom work—backed by the iconic angry crab and a commitment to the Japanese tuner culture. Whether you’re chasing show car status or track-ready function, we build it right, or not at all.
🦀 2016 Subaru WRX STI — The "Sidestepper"
This is the build that started it all—our testbed for flex-fuel power, clean packaging, and reliable heat management.
93 Octane389 whpPeak boost: 23 psi
~E50 (low ethanol content)467 whpPeak boost: 26 psi
Figures shown exactly as recorded; calibration and ethanol content limited results. Retest planned with verified E70–E85.
💨
Turbo
- Garrett G30-770
- Stock location, 10mm single scroll, 3" inlet
⛽
Fuel
- Walbro 525 (8AN feed / 6AN return)
- ID1700cc injectors
- IAG fuel rails
- Delicious Tuning Flex Fuel
- OTL Red Coil packs
- NGK Iridium Plugs (LFR7AIX)
🔥
Exhaust
- Killer B Holy Headers (cerakoted)
- COBB catted downpipe
- 3" turbo-back
🌡️
Cooling & Oil
- Killer B pan & baffle
- KOYORAD radiator
- Perrin oil cooler
- IAG Comp AOS
🌬️
Intake / Intercooler
- Corsa Veloce "Stradale" intake manifold
- ETS 3.5" FMIC
- Stock TGVs
📟
Tuning & Sensors
- Ecutek (speed density)
- COBB 4-bar MAP
- Grimmspeed 3-port EBCS
⚙️
Drivetrain
- X-Clutch twindisk
- Fresh engine / trans / pitch mounts
📊
Electronics
- Custom AEM CD-5L digital dash
- wideband AFR, oil temp & pressure
✨ Clean. Responsive. Built to beat on. Hard use, no excuses.
Flex-fuelClosed Deck EJ257G30-770Track-readyWRX STI
The Team
Chad Adams – Lead Builder & Fabricator
The brain and hands behind every major Sidesteppin’ build. Specializes in drivetrain swaps, fabrication, and functional power setups. If it breaks, he makes it better.Anthony Custic – Operations & Finance Lead
Keeps the machine running behind the scenes. From sourcing high-end components to funding big moves, Anthony ensures each build has the backing to go full send—without compromise.
Contact Us
Got questions about a build, parts sourcing, or working with Sidesteppin’? Hit us up.We’re a hands-on team, so response times may vary—but we always get back.Email us at [email protected]
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Find us on FacebookFor serious inquiries, include your year/make/model and a short description of what you're looking to build.No BS. No generic replies. Just real support from real builders.
Useful Subaru Links
-KS Tech custom spacers, intakes, etc for Subarus
-nengun jdm parts from japan
-Corsa veloce intake manifolds
-amazon cheap coolant expansion tank on amazon
-amazon lithium battery on amazon
-funk motorsport best turbo blanket in the world
-nengun jdm parts from japan