Tubular Anti-Sway Bars The COBB Tuning Tubular Anti Swaybars were in house designed and custom fabricated to our specifications. The primary function and benefit to these bars is to balance the suspension of your vehicle by reducing body roll and under steer. The tubular construction coupled with the adjustability of the rear bar makes this set a must have for any handling enthusiast. Race proven with our own COBB Time Attack test car, the Tubular Swaybar set come with our standard heavy duty rear swaybar mounts, or our in house designed Billet Adjustable Slider Mounts. What makes these bars unique is their hollow (tubular) construction which results in a much lighter and technically superior design compared to the lesser solid bar design. This is the very reason why you'll find tubular swaybars used on high-end performance vehicles and race cars. Stock Brand W COBB F: 7lbs F: 10.3 lbs F: 5.2 lbs R: 8.7 lbs R: 13 lbs R: 7 lbs The tubular design is more expensive and more difficult to manufacturer but that should not be any excuse for not offering the best solution possible. From even a purely aesthetic point of view, the style of the thick, aggressive 25mm diameter swaybar easily visible from behind the car screams that you're serious about performance. Adjustment may be made in order to increase/decrease the rear swaybars effective stiffness. Compared to the stock swaybar, the COBB adjustable rear swaybar is 195% stiffer in the “soft” setting and 215% stiffer on the “hard” setting. Exactly replaces factory swaybar and includes new mounting bushings. Swaybar kits are available with you choice of our standard heavy duty rear swaybar mounts (non-adjustable) or our new Adjustable Slider Mounts. Please note some clearance issues may exist if using the adjustable mounts with the stock STI muffler. This clearance issue does not exist with our muffler or other mufflers we've tested to date. No known clearance issues exist with our standard non-adjustable mounts. It is recommended the swaybars be used as a matched set, Front and Rear, for optimal handling performance.