Power Pack · Subaru WRX / STI / Forester XT
EJ25 Forged Internals Pack
Built For 600HP+
$10,312
Pack price · save 8%
PACK · EJ25-FORGED-PACKWhat’s in the box
Bill of materials.
6 curated parts. One delivered box. Each item picked and double-checked against the build spec.
Total parts list$11,208.64Pack price$10,311.95
Install schedule
Order to
signed-off.
The standard timeline for fitting this pack. Workshop time depends on platform and prep state — confirm with your shop.
01
Day 0 — Order
Place the pack. We pick + dispatch the parts within 24 hours.
02
Day 1–3 — Delivery
Express AU-wide. Tracking on every pack as soon as it scans.
03
Day 4–6 — Install
Estimated 12–16 workshop hours depending on platform and tooling.
04
Day 7 — Dyno + tune
Tune file matched to the pack. Power figures verified before sign-off.
On the rollers
Power figures we’ve seen.
Dyno data from a known-good baseline car running this pack. Tune file matched to the parts; AFR + boost targets verified.
Dyno chart placeholder+185
Est. WHP gain BuildBot rationale
Why these parts.
The EJ25 platform has proven itself capable of massive power - but only with proper internals. This comprehensive forged kit gives you Nitto crankshaft, Nitto I-beam rods, and JE forged pistons - the combination that has powered countless 600+ HP Subarus. Brian Crower Stage 2 camshafts add aggressive lift and duration for maximum airflow. Complete with ARP head studs for reliable sealing under boost.
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