History
The MadMax DV was created created out of the desire for a valve capable of holding 30-35 psi steady when racing the 1.8t powered Audi TT. The valve also had to hold "big boost" while retaining stock drivability, response and stay maintenance free.
Several aftermarket valves were tried,, but all exhibited slow release response, even slower recovery and required frequent maintenance.
Max works for Mitsubishi, and decided to use Mitsu's metal valve found on Evo IX and X his project. It's a good unit from the get go, offering more release volume, larger and stronger diaphragm than the TT's Bosch unit, and capable of holding about 25 psi in stock form.
After several internal and external modifications, a lot of testing at the track and on the streets, a few cosmetic revisions inspired by satisfied Madmax DV owners the 1.8t retrofitted "Madmax DV kit" was born!
Features
- Holds 30+ psi without leaking a drop of boost
- Faster reaction and recovery than the Audi OEM Bosh 710N
- Bypasses more volume than the stock unit
- A lot more travel on the diaphragm plate, protecting the turbo
- Heavy duty diaphragm that is virtually indestructible
- Kit comes complete with new silicone reducers, metal couplers and clamps
