DeatschWerks Fuel Injectors Top Feed 750cc COBB Spec

Part #: DET 21S-02-0750-4


Brand: DeatschWerks
Injector Size: 750cc
Injector Type: Top Feed
O-Rings Included: Yes
Plug and Play: Yes
QTY: 4
Rails Included: No
Mfgr. Warranty: 3 Years
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee


The Deatschwerks WRX / STi Fuel Injectors includes a set of 4 100% drop-in fitment injectors for Subaru WRX 2002-2012 and STi 2007-2012. These are the same injectors demanded by many of the most discriminating Subaru tuners including Cobb Tuning.

The new WRX injectors have been developed with the same commitment to quality, drop-in fitment, and easy tunability that have made the Deatschwerks Subaru injectors the #1 choice of top Subaru tuners around the US and world.

High impedance coils for compatibility with OEM injector driver, ethanol and methanol compatible, each set is flow matched to within 1-2%. A flow report is included with your specific flow results, drop-in fitment for easy installation. Price listed is for a matched/balanced set of 4 injectors.

COBB Spec Deatschwerks fuel injectors are BRAND NEW OEM Cores. Each injector that is processed and built by Deatschwerks goes through a 40 point data inspection before it can ship out the door.

DeatschWerks has a core buyback program available for certain fuel injectors. If this buyback program is available for your application, information will be included with your injectors.





  • AnswerQ: Part No. of DeatschWerks - STI 2011 EJ257  Sniper0202 2 years ago

    Hi, What is the main difference between this two part no DET 21S-02-0750-4 & DET 21S-01-0750-4

    • A: 21S-02-0750-4 are COBB Spec Deatschwerks fuel injectors are BRAND NEW OEM Cores. Where the 21S-01-0750-4 are re-manufactured cores

      Kirill C. 2 years ago

  • AnswerQ: 02 Wrx Wagon  Bug-Eye 3 years ago

    what is the maximum whp that these injectors can handle? on (99 Oct. V-Power Shell )

    • A: According to Deatschwerk's fuel injector calculator, 750cc can support up to 510 crank hp at 90% duty cycle on a turbcharged pump gas applications.

      Zach G. 3 years ago

  • AnswerQ: core return  SLUGGO 1977 3 years ago

    does Deatchwerks have injector core return

    • A: They do, that is all handled directly through them.

      Kirill C. 3 years ago

  • AnswerQ: Drop-In  Arcken 3 years ago

    This injectors are drop in ready or a calibration is needed?

    • A: As they are larger then stock a calibration is needed

      Kirill C. 3 years ago

  • AnswerQ: Potential?  Jason01435 3 years ago

    With regular pump gas (91 oct), what is the maximum whp that these injectors can handle?

    • A: With pump gas and running these injectors near maximum duty cycle, they can support approximately 425whp. It is not recommended to max out injectors and I suggest going with a larger injector if your goals are near 400whp.

      Zach G. 3 years ago