BOSS LOAD ASSIST COMPLETE HVY. DUTY AIR BAG KIT suit ALL PRADO 120 & PRADO 150 SERIES 4WD WAGONS 3/2003-2009 & 2009-2022 with  COIL REAR SPRINGS.  This Kit suits ALL STANDARD HEIGHT & up to +1.5"/40mm RAISED Height Wagons.
FREE CITY METRO SHIPPING INCLUDED * 
* Excludes Regional & Remote Areas !
This is a 'GENUINE BOSS AUSTRALIA' Product using Genuine Boss Manufactured Bags, Brackets & Airline - OVER 25,000 SOLD - not a cheaper China copy product...
*** 5 YEAR WARRANTY on 'BOSS' AIR BAGS *** 
The Kit fits 'Outboard' of the Rear Coils as a completely seperate unit and works in addition to and seperate from theCoil Springs.
 
(NOTE: TRIPLE Bag Kits are available for all 2.5"/60mm-4"/100mm RAISED HT. UTES - Refer BOSS Part Number LA-T133).
 
This kit offers NO DRILL, BOLT-IN FITMENT able to be fitted with ordinary hand tools, yourself.
 
All Boss Brackets and Plates are manufactured from 6mm thick material for extra strength.
 
BOSS Air Bags are incredibly strong and robust allowing them to last for years with correct installation and usage. 
 
Specifications:
Support wires - 9 high tensile central, 4 each end.
Cured natural rubber.
Ballistic woven reinforcing.
6mm Zinc plated steel end caps
Burst Pressure - Over 600psi.
Independent Test Pressure - 480psi
Recommended working range: 6 - 60psi and 100psi absolute max. reco'd. pressure on good tarmac roads.
Boss airbags have a recommended test pressure of 480psi. That meets the pressure vessel industry guidelines of 3 times the maximum working pressure.
BOSS airbags are undeniably the Strongest in the automotive industry and exceed any other airbag brands by nearly DOUBLE
Boss Extreme Series II Airbags are rated at 2500lb or 1136kg per side and have been government approved tested to over 750psi
 
An Average Mid-sized Wagon will run around  5-45psi  depending on load.
 
All Boss airbags are manufactured by Boss and are branded Boss. Beware of unbranded airbags, usually coming from China from other companies.
 
To get the best performance from your kit inflate airbags just enough to achieve a level ride height. 
By doing this you are also allowing all of the suspension components to share the extra load of the vehicle and not putting any unnecessary pressure on any one individual part of your vehicle's suspension.