Adjustable tubular wishbones with modified kinematics (front) for Audi TTRS 8J & RS3 8P

When used on the racetrack, the cornering forces bend the rubber in the wishbones. This changes the desired vehicle geometry. This can lead to slower track times and inefficient tire usage.

For this reason, we have developed uniball wishbones. Our racing wishbones use metal-to-metal uniballs, just like the Porsche RS series (GT2RS, GT3RS). Extensively tested on our Audi TTRS for the race track.

Most racing cars are lowered compared to the standard equipment. Lowering the suspension has the undesirable effect that the chassis is lower than the suspension joint. Excessive lowering causes the wishbone at the end of the wheel to point upwards. This means that you need more steering angle when cornering, the vehicle reacts sluggishly and feels less communicative.

This is where our version of the wishbones comes into play, which offers a modified kinematics option. This version is only compatible with our front tubular subframes.

We use the same T45 tubes as in WRC vehicles. Our control arms offer increased stiffness and additional adjustment options. All factory parts are bolted to this unit, no further modifications are required.

Product functions:

• Adjustment of caster and camber (up to -4.5 degrees)
  
• No rubber that can bend, so the set geometry is retained during adjustment
  
• Corrected shock steering
  
• ONLY works with our tubular subframe (WAS-560 or WAS-550). For standard subframes, use this product.
  
• Allows the wishbones to be removed without dismantling the subframe.

Product features:

• CNC-milled 7075 aluminium insert, silver anodized
• T45 (BS4T45 to BS4T100) pipes from Great Britain and S355 sheets
  
• Proven Motorsport M18 uniballs (the same type we use in our Lancer EVO X kits)
  
• Plug-and-play for use with the vehicle, incl. xenon sensors

Scope of delivery:

• 2x (pair) front tubular control arms (wishbones) with all mounting accessories
  
• 2x (pair) CNC-machined 7075 aluminum wishbone brackets
  
• Spacers for repositioning the steering rack and the front stabilizer. Both 20 mm higher. See illustration below.
  
• 4x rubber caps to protect the Uniballs
  
• Printed assembly instructions

Compatible vehicles (type numbers in brackets):

• 2007-2013 Audi TT/TTS/TTRS (8J)
  
• 2005-2013 Audi A3/S3/RS3 (8P)
  
• 2007-2009 Volkswagen Eos (MkV)
  
• 2010-2013 Volkswagen Eos (MkVI)
  
• 2006-2009 Volkswagen Jetta/GTI/GLI/R32 (MkV)
  
• 2010-2014 Volkswagen Golf/GTI/R (MkVI)
  
• 2006-2013 Volkswagen Passat (except CC)
  
• 2008-2013 Volkswagen Tiguan
  
• 2010-2015 Volkswagen Jetta (MkVI)
  
• 2010-2017 Volkswagen Scirocco
  
• 2005-2011 Seat Leon 1P
  

Replaces OEM part number:

• 8J0407151D 8J0199231 / 8J0 407 151D 8J0 199 231
  
• 1K0407151AK
  
• 1K0407151BF
  
• 1K0407152AK
  
• 1K0407152BF
  
• 1K0407151BD
  
• 1K0407151BC
  
• 1K0407152BD
  
• 1K0407152BC
  
• 1K0407152BC

T45 is a unique seamless carbon steel tube that is used in many applications in various industries. It is stronger than Co-Mo 4130 tubing, which is also used in motorsport. It is commonly used in aerospace for equipment such as pilot and crew seats as it can withstand high G-forces without breaking or splintering. The material is carbon-manganese based and meets the full aerospace specifications of British Standards.

Product features:

• Tensile strength: 700-900 MPa,
  
• 0.2 % yield strength: at least 620 MPa
  
• Hardness test: 201 min.-262 max. HB or 210 min.-275 max. HV.

Note: The rubber O-ring (1K0423187) must be removed in order to mount the steering rack in the new, higher position. Note: Only available for off-road, track and racing applications. The installation of this rear axle control arm kit can lead to an additional transmission of noise, vibrations and roughness into the interior.

Note 2: When using sleeves to raise the steering rack, it may not be possible to use downpipes larger than 3 inches. It all depends on the vehicle and downpipe design. We have tested many 3-inch downpipe designs and they work.

Additional information - Advantages of our lowered wishbone version.

One of the most important measures for improving the cornering behavior of a standard vehicle is lowering the centre of gravity by reducing the ground clearance. Unfortunately, this also has a negative effect on the original suspension geometry and kinematics. To prevent this, our combination of wishbones and subframe offers modified suspension mounting points. This corrects the steering angle and roll center, resulting in better handling and responsiveness of the vehicle.

In addition to correcting roll center height, it also helps with camber reinforcement (changing the camber angle within the suspension travel). In circuit racing, the priority is to optimize to reduce positive camber in corners for better grip, and that's exactly what our additional mounting provides.

We have developed our wishbone subframe set to solve this problem.