Braking upgrades should be done in conjunction with power increases and we have found the biggest improvement can be achieved with this mod. A PDI dual diaphragm brake booster for the 80 series is not only new but is larger and will give an increase in brake performance as the booster assist ratio is higher than factory.
Our PDI dual diaphragm brake boosters have been ADR tested and proved to pass all tests. Our design allows us to exceed the standard brake specifications for those with:
increased weight (both GVM and GCM).
larger wheel diameter
The only fitting issue is for those with rear air con or ice box console where the alloy pressure lines are routed close to the brake booster and will result in interference such that our larger boosters can’t be fitted.