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We have all dreamt of the day when Audi would bring the B8 RS 4 to the States. At this point in the game, we can safely say - that ship has sailed. However, maybe not for everyone. Intro Dennis T… who is about to blow your minds. Dennis is part of the TAG inner circle. Probably one of the most standup and friendliest people you will ever meet and oh yeah, he loves Audis! We have dreamt about this on his new 2013 B8.5 S4 concept for well over 6 months now. We knew that this would be big…a true game changer and so we needed to plan and prep for this in order to do it the RIGHT way. In order to understand the process, we need to understand the story of the RS sedan to date.

The idea of an B8/8.5 RS 4 has been on again/off again when it comes to Audi bringing it to stateside, and they have even teased us with one beautiful B8 RS 4 Avant which currently resides in Audi of America's corporate fleet. Cars for public consumption however are limited to those in Europe as well as some other places that do not include America. The reality of an RS 4 sedan has not been available since the B7 chassis, and we all know how everyone felt about that. During the era of the B7 RS 4, Audi's sedan variant was not only built but it was also hands down the best-selling body style of that generation.

By the time the B8 chassis came into production, the RS 4 sedan model was not available and thus the Avant was our only option (if we lived anywhere but here!) So, we decided to change that. We have sourced only OEM parts - and we mean it. In a build like this, there is no place for wonky craftsmanship. We have scoured the Audi parts catalog and purchased every single bolt, part, lip, spoiler, door, fender, grill, and bumper that is needed for this epic build. This will be a full conversion- including grafting the RS 4 Avant's iconic boxed flares onto the S4 so that everything on the finished car is as spot on and true as possible.

We are confident that when this thing is done, we will have created the only true B8.5 RS 4 sedan seen to date and done in the right way. We are very excited to show off the progress and please feel free to ask questions. We will make sure to keep this updated very frequently and not leave anyone hanging. We also suggest following more of the build thread via our TAG Motorsports Social Media - Instagram @TAGMotorsports - Facebook.com/TAGMotorsports as well as our BLOG

So the vehicle already was equipped with HRE Wheels, KW DDC Coil Overs w/ HLS (Noselift), AWE/GIAC Stage 2 Goodies as well as SuperSprint's Long Tube Headers and Stoptech Brakes. Here is what she looked like before we began.... You can catch it in this month's European Car Magazine (November 2013 Issue) in the Air vs Coilover Article.




Fast forward to today. We are doing this live! Literally, we will be posting the next 3-months every week here and providing you with the play by play of how this build is coming along. Make sure to subscribe and follow along as this is truly the FIRST of its kind and brought to you by yours truly, the TAG Motorsports family.

Ok ok, onto the first batch of photos! Gutted and ready to do work! Along with some testing of the RS fenders to see how it all lines up.....







 
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Got some epic updates already. As you know, the flairs on the rear begin in the rear doors so we had to have the RS4 Avant Rear doors imported. Once they came in, we had to measure exactly what part of the window frame is actually different between sedan and avant. Once that was determined, we were able to maintain the structure of the door and just cutting the top section of the Sedan window fame and adapting it to the Avant Door.

Once that was completed, we bolted the rear door temporarily onto the car and here is the result..... You can now actually see how much WIDER the RS4 really is than the standard narrow body cars.




 

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This is unreal, great job guys!!
 

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will be epic
 

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Got even more updates from yesterday/today.

The Fabrication team got the rear fender cut, and they are now being fitted into place, and the rear doors are also hung and ready to rock & roll. Now its time to fine tune and adjust to make sure everything lines up evenly.

In the third photo, you can notice exactlly where the Sedan window frame was used on the new Avant rear door so that the Avant door now follows the roof line of the sedan.








 

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How possible would it be to do this to an S5? I know the RS5 has no widebody, so why not try to make a custom widebody using RS4 parts? Hmmmmm
 

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Thanks for the compliments on the project thus far, everyone! It's a hell of a project if I don't say so myself.

How possible would it be to do this to an S5? I know the RS5 has no widebody, so why not try to make a custom widebody using RS4 parts? Hmmmmm
The lines and overall dimensions between the 4 and the 5 are pretty different, you'd be better off doing a S5 -> RS5 conversion though it's not going to be any wider, just has more aggressively flared fenders. Otherwise you'd have to go completely custom which would be difficult to keep the lines looking natural.
 

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Got some more updates for you guys this week.... So basically the passenger side is completely assembled and completed. The drivers side will be completed today. If you noticed, we had to get all the fuel tank bezel as well as the fuel door off of the RS4 Avant as its much shorter....

Next step, it goes on to the paint department.... The biggest hurdle now is overcoming the Avant Rear Bumper and mating it to the Sedan trunk lines, and rear tail lights.... Stay tuned for more updates!







 

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Simply amazing
 

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Ok guys, so here is the latest update. The fabrication work is done on the quarters and doors. Now on to the rear bumper.....

Since the rear trunk line on the avant including the tail lamps is completely different, the only way to make this conversion work is to use both bumpers. We started with the factory Sedan S4 bumper, and cut it down the middle so the meeting point between the quarters, trunk and lights are the same. The lower half of the bumper (which is the actual RS4 Avant Bumper) was also cut in half, and fused together to the Sedan Bumper. On the sides, being that the RS4 Flairs were so much larger, the ends had to be flared out to match the OEM Avant Rear Bumper Flair.....

Stay tuned for more updates once the car receives its first coat of paint next week!






 
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