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DeatschWerks Fuel Injectors Top Feed 850cc ( Part Number:DET 21S-01-0850-4)

DeatschWerks Fuel Injectors Top Feed 850cc - Subaru Models (inc. 2002-2014 WRX / 2007+ STI)

MODEL # DET 21S-01-0850-4
Manufacturer Part # 21S-01-0850-4

$504.61

MSRP: $549.00

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Description

RallySport Direct is proud to carry the DeatschWerks Top Feed 850cc Fuel Injectors to help you supplement your engine with a proper amount of fuel to accommodate current and future modifications. 

Here are the details:

  • High impedance coils for compatibility with the OEM injector driver
  • Ethanol and methanol compatible
  • Each set is flow matched to within 1-2%
  • DeatschWerks includes a flow report
  • Built using OEM cores, or are brand new units that are a result of a 40 point data inspection before shipment
  • Sold as a set of 4 injectors that are ready for the installation
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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.

Specifications


Brand: DeatschWerks
Injector Size: 850cc
Injector Type: Top Feed
O-Rings Included: Yes
Plug and Play: Yes
QTY: 4
Rails Included: No

Mfgr. Warranty: 3 Years
Condition: New Product
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

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RallySportDirect.com Reviews:
Verified Purchase

They work good!
earache96 2 years ago
I've had these as well as a 320lph fuel pump on my 05 wrx for 7 months and the work fine, no random fuel leaks or issues
Comment
Verified Purchase

great stuff
putter380 5 years ago
Huge pain to install but awesome performance increase with tune. great injectors
Comment
Verified Purchase

great stuff
putter380 5 years ago
Huge pain to install but awesome performance increase with tune. great injectors
Comment
Verified Purchase

Deatschwerks 850cc Injectors
guest55c52785caae52f5098b6bb7 5 years ago
Over a year now, and these injectors are still performing very well. Thanks to the techs hear at RallySportDirect.com, whom helped me pick out the correct size for my upgrade build, things are just fine. Very knowledgable staff. Thank You!
Comment
Verified Purchase

E85 Awesomsauce
bridgerhenriksen 6 years ago
I installed these at the same time with my DW 65c pump. I have an 08' STi and have tuned on a dynojet dyno at 344whp and 418wtq on stock VF48 turbo. The highest I've seen my Injector duty cycles go is 86% for reference... Been about a month so far and they are doing great!
Comment

  • Q: Injectors for a 18g  Nelson Asay 5 months ago

    Answer

    Hi! Will these injectors be able to handle a 18g turbo? If not or maybe, what would be a better injector option? Thanks!


    • A: Great question! Yes these would be able to handle the 18g turbo just fine. It's when you start getting into built motor, E85, bigger turbo than the 18g where you will see these guys be not enough.


      Megan L. 5 months ago
  • Q: injector swap  aggie113 2 years ago

    Answer

    If my car currently has DW 850cc injectors would I need a retune to just swap them out?


    • A: If the car is tuned for the 850CC DW then you should be fine to swap them out.


      Jared A. 2 years ago
    • A: I would recommend at least having the tune checked. While the general injector characteristics should be the same, the injectors likely will not be balanced around the same flow rate. Is it enough to cause an issue, unlikely. ...but if your original set was balanced on the high or low end of the range and the new set is on the opposite, it can cause a lean or rich condition.


      [email protected] 2 years ago
  • Q: Turbo  Cruz 2 years ago

    Answer

    Do I have to retune I have right know the td05h 16 g with 565 injectors But I wanna put a td05h 18 g what injectors to use? Will I gan more hp after ?


    • A: Injectors will require a new tune. The 18g is a larger turbocharger and will net you more power over the 16g.


      Nick S. 2 years ago
  • Q: 850cc  Cruz 2 years ago

    Answer

    Hi there I have a td05h 16g turbo with 255 walbro and 565 injectors down pipe up pipe delete sensor Cobb intake electronic boost control full exhaust done custom and after the tune I'm making 296 hp at 18 psi I'm looking to get the td05h 18g Do I need to change anything in mine set up and will I gan more hp ?


    • A: Are you wondering if these Injectors will be suitable for your setup? Or is the a questions for the parts you already have? Give us a call so we can further assist and get you what you need.


      Trevor C. 2 years ago
  • Q: Downgrading  jamezcua3460751 2 years ago

    Answer

    Hi i currently have a tune set for 870cc modified stock injectors. If i buy these to get a closer flow rate between all injectors would i need a re tune right away or would i be able to get away with just swaping for about a week before the retune? Or would detchworks recommend even flow testing the injectors i have now


    • A: These would require a tune immediately after installation to run properly.


      Nick S. 2 years ago
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