Subaru WRX STI 2015 Tuning: CRTEK2
In our todays dynotest we have the brandnew Subaru WRX STI MY2015 equipped with our CRTEK2 pakage. The Chip-Racing CRTEK2 for the previous Subaru Models is very well known for it’s performance, driveability, durability and last but not least, for being 100% street legal in Switzerland. Of course, the CRTEK2 for the newest generation of the STI family is street legal as well!
Dynotest: Subaru WRX STI 2015: CRTEK2
Testcar
- Subaru WRX STI MY2015

Modifications
- Chip-Racing CRTEK2
- Invidia Q300 Catback Exhaust
- AEM Cold Air Intake
- CRTEK ECU remap
After a few dynoruns in stock trim we installed the Invidia exhaust along with the AEM intake and started mapping the Subaru STI. Since Subaru is still using the EJ25 engine, the results are no big surprise:

green line: original 296.9hp / 406.5Nm
blue line: CRTEK2 364.4hp / 504Nm
Verdict
The newest generation of Subarus rally legend shows some healthy numbers in stock trim! Our CRTEK2 adds around 65hp and almost 100Nm to the already good engine, but it’s still not quite the same gain we had on the 2008-2014 model. Main reason for this is the new EURO6 emission regulation!
Hi
I have a 2015 wrx STi and live in Sweden. Can i use this. have been loking at cobb but thats only for cars in US, and dont suport EU cars.
Regards Peter
Hello Peter,
Thanks a lot for your message.
For your car we recommend our EcuTek ProECU file service. More infos can be found here: http://www.chip-racing.ch/en/2012/08/chip-racing-tuning-with-the-all-new-ecutek-proecu-programming-kit/
For further information please send us a mail to sales@chip-racing.ch
Hallo
Braucht man beim Stage 2 kein grösseren Benzinpumpe ? Wenn ja, 320 oder 340 LPH und was kostet der Montage ?
MfG, Erwin.
Hallo Erwin
Unser CRTEK 2 funktioniert ohne Wechsel der Benzinpumpe. Wenn Du sie trotzdem wechseln möchtest handelt es sich um die DW65C oder DW300 für den STI. Wir bevorzugen die DW300.
https://tuning-shop.chip-racing.ch/de/teileuebersicht/deatschwerks-dw300c-fuel-pump-w-install-kit-sti-my-2008
Hallo Roman
Danke für deine Antwort. Bringt eine grössere eine Benzinpumpe einiger Vorteil wenn ich sie trotzdem montiere ? Was kostet die Montage der Benzinpumpe ?
MfG, Erwin.
Der Benzindruck kann unter hoher Last, stabiler sein. Für den Einbau muss etwa 1 Stunde gerechnet werden.