Collection: For WRX STi 98-20 2.4" Inlet Cover

Kinugawa 2.4" Inlet Turbo Upgrades for Subaru WRX & STI (1998–2020)

Ready to push past your stock turbo's limits? These are direct bolt-on replacements for OEM units (TD04L, VF30, VF35, VF39, VF43, VF48) — no fabrication, no guesswork. Fits 1998–2014 WRX, 2004–2020 WRX STI (EJ257), and 1999–2008 Forester XT. Choose your bearing type, CHRA size, and turbine housing AR to match your power target.

⭐ Most Popular — Start Here

• ⭐ TD05H G25-660 Ball Bearing — Our #1 best seller. 500+hp capable, fastest spool in the G Series lineup. Best for: street/track builds targeting 400–500whp.
• ⭐ TD06SL2 G25-660 Ball Bearing — Larger CHRA, more top-end headroom. Best for: built motors chasing 500whp+.
• ⭐ GTX2863R / GTX2867R / GTX3071R Ball Bearing — GTX hybrid core with ball bearing precision. Best for: power-per-dollar builds.
• ⭐ TD05H-20G Bush Bearing — Best-value bolt-on with strong mid-range response. Best for: budget-conscious stage 2–3 builds.
• ⭐ TF06 G25-660 Ball Bearing — Twin-scroll optimized G Series compressor. Best for: single-scroll to twin-scroll conversions.

Not Sure Which to Choose?

🔧 Ball Bearing vs. Bush Bearing: Ball bearing turbos spool faster and last longer under sustained boost — ideal for track use. Bush bearing turbos offer excellent value for street-driven builds.
📊 G25-660 vs. 20G vs. 18G: G25-660 flows the most air (60 lb/min) for maximum power. 20G balances response and flow. 18G prioritizes quick spool for lower-boost street builds.
📧 Need a recommendation? Contact us with your engine spec, power target, and fuel — we'll point you to the right turbo.