The PSR Holden VE Commodore / HSV E-Series Stage 4 Handling Kit is for the enthusiast who is looking for the ultimate handling package and is all based around the ultimate coilover kit on the market, our XYZ RACING Coilovers. After years of working on this vehicle platform and researching what does and what doesn't work means we're able to offer you the best bang-for-your-buck package that offers a new level of driver feedback and control, while keeping a great level of comfort.

A primary cause of poor handling on any GM IRS platform are the factory rear subframe cradle bushes, which can deflect and shift significantly under hard acceleration, braking and cornering. Replacing the soft and heavily voided factory bushes with an upgraded SuperPro Polyurethane Subframe to Chassis Mount Bush Kit, will eliminate virtually all rear steer and axle tramp caused by this deflection.

Another cause are the front radius arm bushes and the rear upper control arm inner bushes. Under braking, the factory radius arm bushes deflect, causing alignment change and loss of directional control. Additionally, the factory Inner Rear Bush on the Rear Upper Control Arm is known to be very soft and heavily voided. Changing both these problematic components to a SuperPro Polyurethane replacement bush will vastly improve steering input whilst reducing rear steer and axle tramp. Selections are available to suit steel or alloy rear upper control arms.

An often-overlooked aspect of vehicle stability is ensuring chassis and body rigidity during heavy cornering, this is largely caused by the lateral and centrifugal forces transferring the engine weight into the body via the engine mounts. We see huge improvements in stability yielded from the addition of a strut tower brace to tighten up the chassis between strut towers.

We've also included a plethora of products aimed at improving all aspects of your vehicles handling characteristics. Starting with oversized sway bars, these are the primary suspension component that are used to reduce body roll and control lateral load transfer when cornering. We went straight to the unit that offers the largest adjustment range to gain the ultimate performance increase and greatly complement our coilover and bush package. Also included are a host of other critical supporting components such as Caster Offset Plates to correct caster, a front Lower-Inner Bush Kit to reduce alignment change, a Differential to Subframe Mount Bush Kit and rear Trailing Arm Bush Kit to further reduce rear steer, plus a Steering Rack & Pinion Mount Bush Kit to reduce steering rack movement and increase positive driver feel. We also swapped out the factory style rubber strut top mounts supplied on the XYZ Coilovers to a polyurethane unit to reduce strut assembly deflection, allowing for better alignment control.

Combining this with our XYZ RACING coilover means you will have the ultimate street setup to get your car lowered, handling way better than stock while also keeping to a budget. This package will outperform any other shock and spring package and allow you to confidently attack track days and spirited driving every time you step foot into your VE Commodore or HSV E-Series!

NOTE: Strut brace will not clear most superchargers.

NOTE: Does not fit V6 SIDI Engines 2010-On.

NOTE: Vehicles with MAGNETIC RIDE CONTROL (MRC) will need to have the dash warning disabled via tuning software.

KIT CONTENTS: XYZ Coilovers, Subframe to Chassis Mount Bush Kit, Radius Arm bushes, Rear Upper Inner Bushes, Lower-Inner Bush Kit, Caster Offset Plates, Front and Rear Sway Bars, Steering Rack & Pinion Mount Bush Kit, Strut Top & Bearing, Differential to Subframe Mount Bush Kit, Trailing Arm Bush Kit, Front Strut Brace