SKU: 232905088

034Motorsport Audi 7A EFI Injector Adapter Kit for B3 Audi 80/90/Coupe Quattro I5 20V - 034-106-3020

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Description

034Motorsport Audi 7A EFI Injector Adapter Kit for B3 Audi 80/90/Coupe Quattro I5 20V - 034-106-3020034Motorsport's complete 7A EFI injector adapter kit upgrades the failure prone factory 7A fuel injectors with modern high impedance Bosch fuel injectors. The Bosch injectors supplied in the kit are an exact match for the stock Hitachi injectors, but offer more consistent flow and superior atomization. Provides improved idle, part throttle response, fuel economy, and horsepower over stock Hitachi injectors. We recommend this upgrade not only for

034Motorsport's complete 7A EFI injector adapter kit upgrades the failure-prone factory 7A fuel injectors with modern high impedance Bosch fuel injectors. The Bosch injectors supplied in the kit are an exact match for the stock Hitachi injectors, but offer more consistent flow and superior atomization. Provides improved idle, part-throttle response, fuel economy, and horsepower over stock Hitachi injectors.

We recommend this upgrade not only for maintenance and repair, but also as a performance upgrade with a dyno proven 5 WHP increase throughout the powerband over stock Hitachi injectors. Maintains stock air-fuel ratios at idle and part throttle, and a steady 12.5:1 AFR under wide-open-throttle. Breathe new life into your 7A engine for a fraction of the price of a single stock Hitachi injector!

What's Included:

  • 034Motorsport Billet Aluminum Injector Adapters (Set of 5)
  • Bosch style High-Impedance Fuel Injectors, (Set of 5) - (The original Bosch injectors we used have since been discontinued by Bosch, what we supply now are high quality, flow tested replica injectors made by a major injector manufacturer to replace the original Bosch discontinued injector)
  • Necessary O-Ring Seals for Installation
  • Plug-In Resistor Bypass Harness 
Installation Instructions:

Fitment:

  • 1990-1991 Audi 90 20V Quattro (7A Inline 5-Cylinder 20V Engine)
  • 1990-1991 Audi Coupe Quattro (7A Inline 5-Cylinder 20V Engine)

Please Note:

This kit supplies high impedance injectors. The stock resistor pack must be bypassed by rewiring or using our supplied Audi 7A EFI Plug-In Injector Resistor Bypass Harness,

We update the injectors that come with this kit from time to time, so the injectors you receive may not be identical to the ones pictured.  This is done in an effort to always supply the most current, up-to-date product possible.

Included Plug-In Resistor Bypass Harness:

See a full review of this product on Audiworld at: http://www.audiworld.com/tech/content_eng83.html

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: 232905088

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ClairY
Fort Morgan, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
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Amazon Customer
Lexington, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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Grma4m&m
Natrona Heights, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026
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Anonymous
San Leandro, US
★★★★★ 5
Genuinely comfortable and practical for everyday wear
Color: A-5pack, Size: Large, Color: A-5pack, Size: Large
I am very impressed with the FINETOO Boyshort Underwear for Women. These are extremely comfortable, even after wearing them all day. The cotton material is soft, breathable, and feels great against the skin without causing irritation. The cut is well designed and offers full coverage that stays in place without riding up. They are very wearable for everyday use, whether lounging, working, or running errands. I also appreciate that they do not create noticeable panty lines, which makes them easy to wear under different types of clothing, including leggings and jeans. Durability has been excellent so far. I have washed them multiple times, and they have not shown any signs of wear, stretching, or fading. The stitching has held up well, and the fabric still feels just as comfortable as when they were new. The color variety in the pack is another plus. The colors are cute, practical, and easy to mix into a regular underwear rotation. Overall, these boyshorts check all the boxes for comfort, durability, and everyday wearability. I would definitely recommend them to anyone looking for reliable, full coverage cotton underwear. A few are missing from my screenshot as I had already worn them!
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Reviewed in the United States on December 30, 2025
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Fu
Birmingham, US
★★★★★ 5
Made with quality
Color: A-5pack, Size: Small
I ordered a pack of these sometime last year and they have lasted. They r made with quality stitching & the material isnt smothering. These ain’t gonna make your cat stank on a hot day, they r breathable. Sorry didn’t know how else to get that point across. But I just ordered 2 more packs. They r aslo comfortable and don’t feel tight, smothering, or itchy. The material is very comfortable against my skin. The tag is on the left, so when u hold them up u can tell which side is the front and back. They cover enough & form to your body so they r also cute and flattering. They do leave some cheek exposed, for me anyway. These also don’t bunch up & cause wedgies. They stay in place. I have a physical job so I move around a lot, & clean house a lot, & these don’t move around at all. Small fits me perfectly & they do stretch. I’m petite but curvy. I wear cotton leggings & layers frequently, for my job in a cold room, and you can’t c these panty lines thru the cotton leggings. These r also kinda low cut, and they sit below my belly button. These ain’t gonna hold in a fupa or anything, but they do compliment natural curves. I’d leave a pic but not for free 😉
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Reviewed in the United States on September 21, 2025

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