Upgraded performance Haldex controler for the VAG range. Audi A3 / S3 Quattro Audi TT Quattro Seat Leon 4 Seat Alhambra Skoda Octavia 4x4 VW Golf R32 VW Bora AWD VW Sharan AWD VW Beetle RSi The new controler retains all the safety features of the OEM unit, diagnostics and safety but with a change to the way the power delivered to the rear wheels. The Haldex Performance Controller is a total replacement of the mechanical and electronic controller that directly affects how the RWD portion of the AWD system works and how aggressively it reacts under acceleration, cornering and braking. This new product is a complete self contained unit that encloses both the Haldex ECU and the Haldex Valve Control Assembly. This new performance upgrade is a full aluminum assembly with the latest Haldex performance ECU software, and features an upgraded Primary Valve controller.
The Primary Control Valve Assembly:
This upgrade increases torque transmission at acceleration providing consistent performance with increased over-steer. The torque-transmission is influenced by how fast you press the accelerator down. The Haldex system can transmit torque before the engine delivers torque. At greater speeds the torque will decrease enabling less over-steer and safer driving properties.
The advantages of this HPP upgrade are it’s ability to predict the onset of torque much like the PreX which is for their newer hardware but even more aggressively. This upgrade takes into account the TPS signal more so than the oem software and therefore can proactively begin applying power to the rwd clutch packs before wheel spin begins. As power is increased, more power lock occurs in the rwd unit until full lock is achieved. To summarize, the new HPP is more aggressive with how it transfers power and does so much more proactively than the oem system. This is ideal for autocross, road racing, and street driving as well as enhancements to poor weather driving.
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