SKU: 44177298375

ECS Tuning Thrust Arm Monoball Upgrade Kit - B8/B9

Sale price$230.83 Regular price$256.48
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

ECS Tuning Thrust Arm Monoball Upgrade Kit - B8/B9Its no secret that Audis suffer from weak, failure prone front thrust arm bushings. The stock rubber bushings are designed to allow significant fore aft movement of the front wheels and absorb road impacts. This compliant design maximizes daily driving comfort and helps add to the luxury feeling of your Audi, but it also contributes to the numb, disconnected feeling that many enthusiasts complain about with modern Audis. Not only is the OEM design far

It’s no secret that Audi’s suffer from weak, failure prone front thrust arm bushings.  The stock rubber bushings are designed to allow significant fore/aft movement of the front wheels and absorb road impacts.  This compliant design maximizes daily driving comfort and helps add to the “luxury” feeling of your Audi, but it also contributes to the numb, disconnected feeling that many enthusiasts complain about with modern Audi’s.  Not only is the OEM design far from ideal for the street or racing enthusiast that is looking for optimal handling and braking performance, the constant twisting and deflection required of the rubber bushing often causes premature failure, resulting in degraded handling, wheel shimmy, delayed steering response, delayed braking response, unwanted alignment change, and poor tire wear.  For the rest of us who enjoy seeing what our car is made of, these types of bushing simply won’t cut it. 

Introducing the new ECS Tuning Thrust Arm Monoballs!  The ECS Engineering team set out to design a solution that offers far superior durability when compared to OEM, requiring no modification and offering nearly instantaneous cornering and braking response for the absolute best road feel and driving experience possible.  Our monoballs utilize a sealed OEM BMW M ball joint for exceptional quality and durability.  The bearing assembly is precision CNC machined from 6061-T6 anodized aluminum and features a knurled OD to ensure a perfect press fit and longest lasting component life possible. 

By utilizing a sealed ball joint, ECS achieved the ultimate in terms of low friction no bind suspension travel with no unwanted deflection, providing exceptional steering precision, turn-in response, and direct braking feedback; all while maintaining exceptional comfort and durability levels making these an excellent no compromise upgrade even for a street car.  These thrust arm monoballs are a must have for any track car, but are also completely street-able and are a great upgrade for any enthusiast that enjoys spirited driving.

There is still another advantage to upgrading your control arms to ECS monoballs. When installing the control arms you no longer have to have load on the car to tighten them down all the way, now everything can be done using a jack with the car in the air.

Features:

Ball Joint / monoball

  •  OEM BMW M sealed, greased ball joint for exceptional durability and service life, even in the most severe operating conditions

Housing

  • Precision CNC machined from 6061-T6 Aluminum 
  • Type II anodized housing for excellent corrosion resistance. 
  •  Proprietary designed knurled OD to provide the perfect fit for the wide range of thrust arm bore diameters among brands. 

Bearing Inserts

  •  CNC machined 304ss ball joint sleeve inserts, providing a precision fit between the ball joint and the subframe. 

Performance

  •  Nearly instantaneous, crisp steering and braking response.
  •  Maintenance free, long lasting performance. 
  •  Improved road feel without undesirable NVH.

This Part Fits The Following Vehicles

Make Model Submodel Engine
Audi A7 C7 3.0 TDI
Audi A7 C7 3.0T
Audi B8 A4 FWD 2.0T
Audi B8 A4 Quattro 2.0T
Audi B8 A4 Quattro V6 3.2L
Audi B8 A5 Quattro 2.0T
Audi B8 A5 Quattro V6 3.2L
Audi B8 RS5 All 4.2L
Audi B8 S4 Quattro 3.0T
Audi B8 S5 Quattro 3.0T Cabriolet
Audi B8 S5 Quattro 3.0T Coupe
Audi B8 S5 Quattro V8 4.2L
Audi B8 SQ5 Quattro 3.0T
Audi B9 A4 FWD 2.0T
Audi B9 A4 Quattro 2.0T
Audi B9 S4 Quattro 3.0T
Audi C7 A6 FWD 2.0T
Audi C7 A6 FWD V6 3.0T
Audi C7 A6 Quattro 2.0T
Audi C7 A6 Quattro 3.0 TDI
Audi C7 A6 Quattro V6 3.0T
Audi C7 S6 Quattro 4.0T
Audi C7 S7 Quattro 4.0T
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: 44177298375

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4.9 ★★★★★
Based on 26 reviews
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Product Reviews
L
Verified Purchase
Lorene
Charlottesville, US
★★★★★ 5
King has met his match.
Color: Large - Billy the Beast Monster
I received my dog's toy this evening when I place the toy on the ground my dog King went crazy. He is a one-year-old Pitbull and love to tackle any toy he believes he can't take down, but Mr King has met his match with this toy. He was using all of his bite force to demolish the toy but the toy actually has worn him out. He ran around my yard for about 30 minutes with the toy in his mouth producing the squeaking sound from the toy as well. Hold up the toy is totally filthy with dirt almost covering the entire green and yellow belly of the toy. I have brought king mini toys in the last couple of months and this is the best toy that holds up to his energy level. I tried to retrieve the toy and place it in his dog house because it is far beyond his bedtime, but he wanted to play catch me if You can with my new toy. This is a great toy for those big energetic dogs that love to take their aggression out on maybe some furniture or perhaps that favorite shoe you do not want them to chew on. I am totally sold on this toy I brought from the seller who placed the items on the Amazon site. I plan on purchasing a another toy from the buyer to keep King energy at a low level if I can. I just checked on my dog and he actually has taken the toy with him inside of his dog house and now the toy is snugged under his left paw. I'm one of those smart owners I'm not going to even try to take it from him tonight but hopefully in the next week I can sneak it from him and it may be perhaps wash it. I did this item AA Plus
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
B
Verified Purchase
BBarry
West Palm Beach, US
★★★★★ 3
Cute, but not Maligator-proof!
Color: Small - Towering Timmy Monster, Color: Small - Towering Timmy Monster
Fun toy while it lasts. My Belgian Malinois made quick work of this little guy but still enjoys playing with its carcass. Bite Force* but not taking into account the bite force of a Mali-gator!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
S
Verified Purchase
Steffyt
Lake Worth, US
★★★★★ 5
Puppy Love
Color: Small - the Goofy Monster, Color: Small - the Goofy Monster
Short backstory.... My daughter moved in with her 3 dogs recently and brought her dogs toys. Over the course of the last 3 months, my dogs have managed to steal every last toy they could find. fast forward to purchasing this Blue Monster. It came today and was immediately grabbed by one of my dogs. She refused to give it up even for her favorite ball. Ten minutes later another dog had the baby monster and was not giving it up!!!! (think growling) I thought that I would put the monster up for the night to allow for some sleep but it felt like it had been soaked in slobber ( I am sure I saw it drip ;) ). My dogs seems to think this little blue monster is their one true love. Now for some facts. 1. Baby monster is quite small in comparison to my other Bite Force dog toys. It is not too small for my dogs but it is definitely not a size I would give to my daughters Pit that thinks she is a vacuum. 2. Squeaker lasted about 2 minutes before my dog drool invaded it. Currently no squeaky sounds can be heard...just slightly squishy sounds 3. No holes despite my dogs trying. There has been constant chewing (by Standard Poodles) on this little guy for the last 5 hours and not one little open area. Trust me this is a huge accomplishment. Stuffies last 10 seconds in this house. If you need a toy that will last longer than most I highly recommend Bite Force. The are designed for tough chewers and take a beating
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
B
Verified Purchase
B shops here too much
San Leandro, US
★★★★★ 2
My raptor GSP destroyed this dino toy
Color: Medium - Dilophosaurus, Color: Medium - Dilophosaurus
My dog ripped this toy apart faster than the trex did the lawyer in Jurassic Park. 2 hours! Arm was ripped off, stuffing pulled out methodically over the next to days. Now it is a gutless husk. The metor was kinder to the og dinos than my gsp was to this. Sorry Bite Force. Open to product sampling tho!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
E
Verified Purchase
Edward Williams
Omaha, US
★★★★★ 4
My Hero pup is super happy with it
Color: Large - Billy the Beast Monster
I was super excited to order this and had waited some time to do so. I wanted Big Billy The Beast Monster in large Green, he’s an awesome looking guy. My Golden Retriever was all over me while I was up packaging Him and his tail was in helicopter mode. He was so excited to have it and carried it around the house everywhere we went, he’s laying on me with his head in my lap and Billy’s right next to him. Reason for buying it? Well he loves plushies but there are not many available out there that can stand up to this 80 pound chew monster so I have to keep him on harder stuff, 2 of which are the cheapest toy skull and crosses in orange and blue from a cheap outlet site but he loves them. Orange was first then when we pulled out the blue one he had a aha moment. Now with Billy he was on a whole new level of excitement, I’ve never seen him this excited over a toy, he can’t stop carrying it with him everywhere and showing it off to the other pups I have, there’s no growling or resource guarding but he definitely won’t want to share and that’s of because I always take away any plushies that he gets to because he is serious about chewing. This being made with Kevlar gave me hopes of longevity but he had the ears and the end of 1 hand chewed off in under 2 hours, am I disappointed…yea a little but he has gotten so much joy out of it that it’s made me really happy to have bought it anyway, see he’s my Service Dog so he spends a lot of time being so serious and working that he needs any outlet for spending energy possible and he’s so happy with it that it makes me happy. As I’m writing this he’s asleep with his head in my lap and Billy right next to him looking very tired and happy and that my friends is worth all the beans in the world.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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