Engine bayApex Race · SKU APX-BT-WRX-2015
2015–2021 Subaru WRX (FA20DIT, AWD) — direct fit. 2018–2021 WRX STI (EJ257) — fits with EJ-spec manifold (+$340). Not compatible with 2022+ VB chassis.
Save $1,005 when booked with our install bay (credited as labor)
Garrett enforces MAP pricing across all authorized dealers. We rebate the difference as in-shop labor credit at our Charlotte bay — full kit install runs $2,400 retail, $1,395 with the MAP credit. Skip the credit and we'll ship anywhere in the 50 states at MAP — your tuner picks the rest of the path.
3-day turn, lift + dyno + tune included. Book bay slot →
| Year range | Make / Model | Engine | Notes |
|---|---|---|---|
| 2015–2021 | Subaru WRX Base, Premium, Limited | FA20DIT 2.0L turbo | Direct fit, AWD |
| 2018–2021 | Subaru WRX STI Base, Limited, Type RA | EJ257 2.5L turbo | Requires EJ-spec manifold (sold separately, +$340) |
Note: Not compatible with 2022+ WRX (VB chassis — FA24DIT — separate kit in development).
Pulled at our Charlotte shop on a stock-internal 2018 WRX hatch, Mustang AWD dyno, 78°F ambient. Tune by our in-house Cobb tuner. Numbers are wheel hp / wheel torque.
| RPM | 91 oct (whp) | E85 (whp) | 91 oct (lb-ft) | E85 (lb-ft) |
|---|---|---|---|---|
| 3000 | 148 | 162 | 248 | 270 |
| 3500 | 218 | 248 | 322 | 360 |
| 4000 | 308 | 349 | 388 | 429 |
| 4500 | 372 | 422 | 411 | 451 |
| 5000 | 408 | 462 | 412 | 455 |
| 5500 | 420 | 478 | 392 | 442 |
| 6000 | 414 | 480 | 364 | 422 |
| 6500 | 388 | 466 | 322 | 384 |
Peak: 420 whp / 412 lb-ft on 91, 480 whp / 455 lb-ft on E85. AFR target 11.7 on 91, 11.2 on E85. Boost peak 24 psi taper to 20 psi.
| Turbo | Garrett G25-660 (660 hp rated) |
|---|---|
| Manifold | Tial twin-scroll T3, 304 stainless, equal-length |
| Downpipe | 3.0" mandrel-bent 304 stainless |
| Intercooler | Wagner Tuning EVO 2 — 87mm core, bar-and-plate |
| Injectors | Injector Dynamics ID1050x (1050cc, EV14) |
| Fuel pump | DeatschWerks DW440 in-tank |
| Wastegate | Twin-port internal, MAC solenoid included |
| Power target | 420 whp @ 91 oct / 480 whp @ E85 |
Not included: oil + coolant lines (use OE), exhaust beyond the downpipe (use your existing cat-back or pick one from our intake/exhaust catalog), tune (Cobb Accessport sold separately).
Estimated bay time: 12–16 hours including tune. Recommended for shop install — manifold-to-head clearance is tight enough that we don’t recommend it as a driveway job unless you have a 2-post lift + a coolant catch system.
Apex warranty: 24 months / 24,000 miles on the kit components. Garrett cartridge: 36 months / unlimited mileage from Garrett direct. Wagner intercooler: 24 months from Wagner. Injectors: 24 months from Injector Dynamics.
Supersession: SKU APX-BT-WRX-2015 supersedes the legacy APX-BT-WRX-2014 (which used a Garrett GT3076R cartridge and a smaller T25 manifold — discontinued June 2023). If you have the old kit and want to upgrade the cartridge only, ask about our exchange program — $1,400 credit toward this kit when you ship back the GT3076R core.
Track use: covered. We don’t void warranty for HPDE, TT, or wheel-to-wheel — but warranty does not cover damage from improper tune, fuel pump failure, or running out of fuel at WOT.
30 days from delivery on uninstalled kits in original packaging. Once any component shows install marks (manifold gasket compressed, IC piping cut, injectors keyed), the kit is non-returnable but we’ll honor warranty on individual components.
Return shipping is freight — customer-pays unless the return is due to a fitment error on our side (e.g., we shipped the EJ-spec manifold to a FA20-equipped car). Refunds posted within 5 business days of warehouse receipt + inspection.
Build the package
Direct-fit bar-and-plate FMIC, +132% core volume vs. OE. 49-state legal.
Drop-in FMIC with black-anodized core. 2.5" piping kit included.
Mandrel-bent aluminum tube, Dryflow filter, +14 hp. CARB EO.
Reviews · 64 total
4.9 / 5 average · 96% would re-buy · 78% verified dyno results
Pulled the trigger 6 weeks ago for my 2019 STI. Shipping was as quoted (4 business days to Phoenix, freight on the IC), kit was complete (everything Apex says is in the box, was in the box). Tune feels like a different car. Pulled 478 whp on E85 at our local dyno — matches their published number.
Anthony C. · 2019 WRX STI · Phoenix, AZ
Their tech called me on day 2 of the install when I sent a question via the install-bay scheduling form. Walked me through manifold-to-head clearance for 15 minutes on a Saturday. I bought the kit twice — once for myself, once for a buddy who just wanted me to do his too. Apex makes that easy.
Sarah P. · 2017 WRX · Charlotte, NC (installed at Apex bay)
Stage 2+ map on E85, 23 psi taper from 4800 to redline. Trims stay within +/- 4%, IATs peak 38°C ambient + 20°C above. Fueling kit was sized correctly — DW440 isn't the loudest but it keeps up to 480 whp without buzzing. Wish the kit came with a louder intake elbow, but that's nitpicking.
Diego R. · 2020 WRX · Miami, FL
Build it. Run it harder.
Kit + tune + bay scheduling, all from Charlotte. ASE-certified phone support, Cobb / EcuTek calibration, dyno-verified power on 91 or E85.
or call (704) 555-0177