The ICON Vehicle Dynamics Stage 3 S2 Secondary Shock System redefines the off-road capability of the 2007-UP Toyota Tundra by allowing for the installation of a secondary shock to an existing ICON coilover setup. The addition of an Omega Series bypass secondary shock means rougher terrain and larger off-road obstacles can be overcome with confidence as the damping ability of the vehicle’s front suspension is effectively doubled. ICON’s Omega bypass technology allows for the end user to adjust and fine-tune the ride quality of the vehicle with both compression and rebound adjustments.; As opposed to overly complicated and expensive long travel kits, the ICON S2 System is an affordable, mostly bolt-on upgrade that drastically increases off-road performance, is easy to install, and has a modular design that allows 2007-UP Toyota Tundra owners to upgrade in steps or all at once. The S2 Secondary Shock System utilizes the factory lower control arms and maintains OE track width while a combination of a billet aluminum shock tower adapters, fabricated shock hoops, and steel lower shock mounts make for a straightforward install with the exceptional build quality you would expect from an ICON Vehicle Dynamics product.