PREracing Stage 3+ WRX/STI Turbo Upgrade Kit 300-400WHP
Looking to take your Subaru WRX or STI to the next level? Look no further than the PREracing power packages!
The PREracing Stage 3+ Power Kit includes:
- Tomioka Racing Turbocharger - Direct bolt in performance available in 3 sizes: TD05-16G, TD05-18G, and TD06-20G depending on your power and spool-up goals.
- Tomioka Racing big tube Unequal length header and venturi-uppipe to increase spool-up, increase midrange power, and prevent top end drop off.
- Deatschwerks Fuel Injectors - Drop in fuel injectors from Deatschwerks. Excelent spray pattern tested at 5 difference pulse widths for optimal flow and response. Injectors are flow matched for the best performance.
- Deatschwerks DW300 Fuel Pump - Flows 320 litres per hour, ethanol compatible, 3-year no-fault warranty, quiet and reliable turbine impeller.
TD05-16G - Fastest spool, similar to stock VF series turbo. Typical power from 300-340whp with proper supporting mods. Great autocross or racing turbo where spool-up response and midrange power are most important. Best turbo for a daily street driven WRX or STI.
TD05-18G - Fast spool, more power. Typical power from 320-370whp with proper supporting mods. Good all around turbo, broad power band, good top end with little to no drop off.
TD06-20G - Lots of top end power. Typical power 350-400whp with no drop off. Great turbo for drag racing use.
For optimal power gains PREracing recommends the following supporting mods for this kit: Turboback exhaust, Upgraded intercooler (topmount or frontmount), Turbo-inlet tube, and Intake system. Forged pistons recommended for EJ20's above 320whp and EJ25's above 360whp.
PREracing power claims are based on what we see from properly tuned vehicles running these kits with proper supporting mods. Your results may very.