SKU: B616X01P-BK
Subaru 2015-2018 WRX STI Stage 1+ Power Package
AEM Stage 1+ Power Package delivers dyno-proven power for 2015-2018 Subaru WRX STI models including Base Launch Edition and Limited trims. It combines a high-flow cold air intake system with V3 FLASHTune for instant horsepower and torque increases plus sharper throttle response. Engineered to pull in cooler air while optimizing fuel and ignition timing for track-ready performance.
Key Features
- High-Flow Cold Air Intake: Massive dual-chamber air box and 3-inch mandrel-bent aluminum tube boost airflow by 45% over stock for denser cooler intake charge
- Dryflow Synthetic Filter: Reusable washable design traps 99.4% of dirt while flowing 97 CFM more air than OEM filter
- V3 FLASHTune Tuner: Handheld device with preloaded maps adds 16 HP and 18 lb-ft refines air/fuel ratios and timing for combined package gains of 29 HP and 23 lb-ft at wheels
- Pre-Filter Option: Included for dusty conditions protects filter media extends service intervals
- EPA Compliant Design: Retains stock emissions configuration no check engine lights or smog issues
Product Notes
- Requires 93 octane unleaded fuel for full power delivery
- FLASHTune backups stock ECU file before flashing allows reversion if needed
- Oversized packaging requires freight calculator for remote areas
Installation Notes
- Professional installation recommended.
- Cold air intake bolts on in 90 minutes using basic hand tools no cutting or permanent mods
- FLASHTune plugs into OBD-II port flashes in under 10 minutes no disassembly required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015 | Subaru | WRX STI | Limited |
| 2016 | Subaru | WRX STI | Base |
| 2016 | Subaru | WRX STI | Limited |
| 2017 | Subaru | WRX STI | Base |
| 2017 | Subaru | WRX STI | Limited |
| 2018 | Subaru | WRX STI | Base |
| 2018 | Subaru | WRX STI | Limited |
Why Choose AEM?
- Dyno-tested on actual Subaru STI engines for verified gains
- Precision-machined components withstand boost and heat cycles
- Backed by 25+ years of turbocharged Subaru development
Frequently Asked Questions
- Q: Does this fit 2016-2018 WRX STI Limited models?
A: Yes direct bolt-on fitment confirmed for all 2015-2018 STI trims including Base Limited and 2015 Launch Edition no modifications needed - Q: What materials build this power package?
A: Heat-resistant powder-coated aluminum intake tube high-density cross-link polyethylene air box and premium synthetic Dryflow filter media - Q: What warranty coverage applies?
A: Lifetime limited warranty on intake hardware 1-year warranty on FLASHTune tuner covers defects in materials and workmanship
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Single oversized box 24in L x 16in W x 12in H
- Weight: 7.5 lbs
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