Deatschwerks Set of 8 550cc Injectors for Audi S4/RS6/S6/S8 4.2L V8 2001-09 (21S-06-0550-8)
SKU: 59436686766

Deatschwerks Set of 8 550cc Injectors for Audi S4/RS6/S6/S8 4.2L V8 2001-09 (21S-06-0550-8)

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Description

Deatschwerks Set of 8 550cc Injectors for Audi S4/RS6/S6/S8 4.2L V8 2001-09 (21S-06-0550-8)Deatschwerks Set of 8 550cc Injectors for Audi S4 RS6 S6 S8 4. 2L V8 2001 09 (21S 06 0550 8). DeatschWerks pioneered the application specific fitment approach to high performance fuel injectors in 2005 when universal was the standard. This passion for innovation has continued over the years and has culminated in the current line up which represents the most comprehensive and best supported injector line in the industry. The right tool, used

Deatschwerks Set of 8 550cc Injectors for Audi S4/RS6/S6/S8 4.2L V8 2001-09 (21S-06-0550-8). DeatschWerks pioneered the application specific fitment approach to high-performance fuel injectors in 2005 when “universal” was the standard. This passion for innovation has continued over the years and has culminated in the current line up which represents the most comprehensive and best-supported injector line in the industry. The right tool, used incorrectly, yields substandard results at best. Fuel injectors follow this same universal law. Proper data is required for proper tuning. All DW injectors are fully characterized in-house via SAE J1832 standards. Injector data is available in General Characterization Summaries and Application Specific formats. Using the data is easy. Often it is cut and paste from the DW excel sheet to the tuning software.

Development of accurate injector data is a complex process, but there are no shortcuts to a proper calibration. DW has developed specially designed and calibrated flow benches utilizing digital flow meters, which are required to measure the precise fuel mass needed for proper characterizations. The data acquisition process consists of collecting over 450 data points per injector part number. These data points cover pulse widths, pressures, and voltages that the injectors will experience once installed in your engine. The collected data is statically analyzed, scrubbed and formatted into a General Characterization Summary. This Summary can then be formatted into application-specific formats for different makes, models, and tuning platforms. The application specific data is then in-car optimized by one of our tuning partners. Quality injectors mated to proper calibration data will still perform poorly as a system if the injector set is not properly flow matched. The DW dynamic flow matching process ensures each set works together as a system to fuel your engine properly. Fuel injectors do not operate in a static state so why test them in a static state? In the engine, fuel injectors are a very dynamic component, constantly changing frequencies and pulse widths to precisely deliver the fuel needed.

Features:

  • Improves fuel flow and performance
  • Multi-point dynamic set matching
  • Drop-in fitment
  • E85 compatible
  • Flow rates and set balancing in-house by DeatschWerks
  • Flow balanced to within 1-2% (flow report included)
  • Excellent spray pattern and atomization for optimized idle and tuning
  • Packaged ready to install
  • Backed by a 3-year comprehensive warranty
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 59436686766

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4.3 ★★★★★
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Amber M
Whiting, US
★★★★★ 4
Medium weight minimal ingredient moisturizer!
Size: 3 Fl Oz (Pack of 1)
As with another review, I’m looking for a replacement/dupe for Eucerin Urea Repair face moisturizer which is 5% urea Skin concerns: dry rosacea, mid-40s, arid climate with 4 seasons, winters are cold and snowy and summers are 90°+ for most. This is a medium-weight moisturizer that I consider not greasy at all. It is not as hydrating as I need it to be for my dry skin type with rosacea. Thickness wise I say it is similar to a standard facial sunscreen. It does last overnight, in the morning I can still feel it in some areas. I will try increasing how much I apply in order to see if it helps with how much staying power it has. This may increase the hydration it provides and I will update my review to report back. I had a very mild stinging sensation but my rosacea is struggling since moving to a dry climate. Once I repair my skin barrier a bit, I fully expect this will cease. Due to this, I’m not going to get my husband to try it, he has constantly broken skin from severe eczema and stinging is something that makes him not use moisturizers. It’s a battle! For people in more humid climates this may be a more effective moisturizer, or those with less-dry skin than me. I never have flakes so this wasn’t a parameter for me. There is no tint. I’m not sure about white cast so I can’t rate it for skin tone. But I don’t feel there would be, this seems translucent unless you really go in with it. For me it is reasonably effective. It’s probably a good day moisturizer and I expect it plays well with sunscreen, though I would definitely let it absorb or dry down. Which is pretty standard for daytime skin care. There is a slight grippy feeling when applying, but this dissipates like the Eucerin Urea Repair does. This is not, for me, a replacement or dupe for Eucerin Urea Repair. It is a great value for the price! Overall for someone with skin like mine I rate it a very solid 4/5. I would likely purchase again for a lightweight moisturizer as a more affordable substitute for Beauty Of Joseon Dynasty Cream for day. Though this does not give me the “bounce” that does. Alas. Updated to add: I tried increasing the amount I apply, and that eliminated any grippy feeling when applying. I now apply both day and night and this has helped repair my barrier enough it doesn’t sting when I apply this. I still have a way to go before I can return to using my sunscreen, but I do work in a building with no windows so the few minutes I am outside, it’s okay if I go without. If I apply this to my eyes, it doesn’t sting them, which is great, my eyes are extremely sensitive and I hesitated, but it works out just fine. It isn’t thick enough to cause whiteheads to form on my lids, unlike some balm-type moisturizers (LRP!) and even unfortunately Bioderma Sensibio Eye+ I have noticed the backs of my hands are improved as I wipe off excess onto the backs of my hands and into my cuticles. I was genuinely surprised by this, it’s not like I don’t wash my hands. I wasn’t expecting it to have any effect, but the stinging scaley hands are gone, now my hands just feel normal, even after wearing wool fingerless gloves all day at work. I will continue to use this product and will repurchase even after my financial situation improves.
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Reviewed in the United States on October 19, 2025
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Nay S.
Louisville, US
★★★★★ 5
My rosacea approves
Size: 3 Fl Oz (Pack of 1)
I have Rosacea, dry, sensitive, reactive skin and perimenopausal skin. My rosacea products tends to dry my already dry skin and this has been been a great moisturizer. My skin looks dewy, dullness and dryness have improved in just 2 days; I haven't reacted with sting and redness like I usually do and when I wake up I still have a dewy not greasy face even though I sleep on my sides and toss and turn all night. Definitely going to buy again since the bottle size is good, a lil goes a long way and does not make my face react like the CeraVe.
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Reviewed in the United States on April 28, 2026
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Onzz
Cuba, US
★★★★★ 5
This stuff works nicely
Size: 3 Fl Oz (Pack of 1)
So I don't typically leave reviews, but I feel like this lotion has been fantastic to me. I typically don't use lotion because I hate the feel, but my face really needed it. I have dry/oily skin. My skin gets gross and flaky, yet it's pretty oily. I've always dealt with it. I decided to go ahead and buy this stuff because I couldn't take my dry skin. It helps soooo much and you barely need any. I use a dime sized amount and really focus on my problem areas. It lasts all day, not too thick and not too watery. Not greasy at all for me and soaks in very nicely. Again, it lasts all day and I don't need touch ups, even on bad skin days. I don't ever break out and it's never clogged my pores, but to be fair I've never really had skin that's broken out much before. The one thing I did notice, before using this stuff I started noticing more fine lines around my eyes/forehead. I've been using this stuff for about a year and you can barely see them anymore. I have haven't changed my diet, it's pretty atrocious honestly, so I really feel this lotion has worked wonders on its own. Also I still have a decent amount left in the bottle and I bought it almost a year ago. I'm going to try their body lotion next. Hope this helps, or at least give it a whirl!
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Reviewed in the United States on March 9, 2026
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Verified Purchase
JAMES
Charlottesville, US
★★★★★ 5
Excellent for hydrating & moisturizing super gentle
Size: 3 Fl Oz (Pack of 1)
I really am quite amazed by this product. I’ve been using top anti aging skincare from a very prestigious, high-end brand for a long time. I’m amazed at how inexpensive this product is and how lightweight, gentle and moisturizing it as. I’m really happy I found it. It’s really incredible for hydrating and skin that is very well hydrated looks act younger. My prior anti-aging moisturizer just never moisturized THIS well. Unbelievable . My skin looks younger .
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Reviewed in the United States on May 18, 2026
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Verified Purchase
Beebee
Bozeman, US
★★★★★ 5
Aquaphor Ointment
Size: 7 Ounce (Pack of 1), Style: 7 Ounce Tube
Magic healing ointment prescribed by dermatologists. I used to think it was just fancy Vaseline, but it has Chamomile and other natural nonirritating ingredients that feed the skin. Great product, and worth the extra cost. Especially good for cryogenic liquid nitrogen treatments by dermatology on precancerous lesions aftercare and surgical incisions. Soothing and not irritating. Wonderful product. Nothing like Vaseline.
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Reviewed in the United States on May 27, 2026

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