DeatschWerks Fuel Injectors Top Feed 1000cc

Part #: DET 21S-01-1000-4
( 6 reviews )



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Brand: DeatschWerks
Injector Size: 1000cc
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.
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Subaru Impreza
WRX STI 2007WRX STI Limited 2007WRX STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 20142.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 2010
Subaru Legacy
GT Limited 2007, 2008, 2009GT spec.B 2007, 2008, 2009
Subaru Forester
XT Limited 2006, 2007, 2008Sports 2.5 X 2008Sports 2.5 XT 2008
Subaru WRX STI
Base 2015

The Deatschwerks WRX / STi Fuel Injectors includes a set of 4 100% drop-in fitment injectors for Subaru WRX 2002-2011 and STi 2007-2011.

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.

Deatschwerks fuel injectors are built from using only OEM Cores. Some of these injectors are new and some of them are core swaps. 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.
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perfect injectors
Taylor Curtis 7 months ago
ran these injectors in my 09 sti for about a year. only got rid of them to get 1300cc. they were completely perfect never had a single issue and very easy to tune. all the guys who had issues either have a bad tuner or some other underlying mechanical issue
Verified Purchase
These SUCK
alpine.11029067 2 years ago
Had for a couple months and now they are shorting out. GARBAGE.

Perfect injector for my setup!!!
Roost 3 years ago
I ran these 1000cc DW injectors on my 06 WRX with my 2.5 XT-R turbo without any hiccups at all. We were able to tune to 19 psi on 91 oct. fuel staying around 80% duty cycle. It made for a fun low 300hp tune.

Worst injectors ever
KornShaDoW097 3 years ago
I've tried everything to tune these with my Cobb AP and the car runs rich and is way off and at light load and idle. There is hesitation at acceleration from a dead stop. It after fires sometimes when you let off the gas... I even had a cobb tuner tell me these are a horrible choice... dont waste your time and money
Verified Purchase
Stay Away
SLO MKIV 3 years ago
2011 STi Stage 2++. Two tuners were unable to tune out the 1500 and 3000 RPM hesitation (car hit a brick wall). I had to purchase an 04-07 FPR drop in replacement which helped but the issue is still there. I am unable to cruise at 3000 rpm and in every gear it hesitates/runs lean at 1500 and 3000. Please do not buy these injectors as they are just a huge headache.


  • AnswerQ: Big Injestors   stidriver11 2 years ago

    I have a 11 subaru sti the only thing done to the fuel system is the fuel pump, I want to put 1000cc injectors but not sure if the stock engine will burn up the fuel, Need suggestions

    • A: Typically the only reason you will want to increase the size of your fuel injectors is to support more boost from a larger turbocharger. These would not be recommended if you are keeping the vehicle stock, and these will not increase power if you are not changing anything else on the vehicle.

      Nick S. 2 years ago

  • AnswerQ: E 85  TheStig303 4 years ago

    Will I need 1000cc to run E85 on my 04 wrx or can I go smaller? Also running a TD06H-20GXT

    • A: That depends on your mods and your horsepower goal. It should not hurt to use 1000cc injectors, but you should talk to your tuner before you decide.

      Zach G. 4 years ago

  • AnswerQ: fuel rails  momo 4 years ago

    do i need fuel rails for this injectors? thanks

    • A: You do not, these would be direct OE replacement

      Kirill C. 4 years ago

  • AnswerQ: o-rings  fatbastard 4 years ago

    does each set of injectors come with o-rings and other rubber parts for a bolt-on installation?

    • A: These injectors come with everything necessary to be a bolt in installation. Thanks.

      Justin S. 4 years ago