034Motorsport Solid Rear Sway Bar, B4/B5 Audi S2/RS2 & A4/S4/RS4 Quattro, Adjustable
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034Motorsport is proud to offer the ultimate rear sway bar upgrade for the B5 Audi A4/S4/RS4 Quattro! The 034Motorsport Adjustable Solid Rear Sway Bar is made from high-quality spring steel for maximum rigidity, and is designed to combat understeer while reducing body roll under hard cornering.
This product was tested thoroughly on the street and track on our shop B5 Audi S4 before release. The 034Motorsport Adjustable Solid Rear Sway Bar substantially reduces understeer and body roll on B5 Audi A4/S4/RS4 Quattro vehicles without compromising comfort on the street.
In addition, the 034Motorsport B5 Audi A4/S4/RS4 Quattro Rear Sway Bar is engineered to be used effectively with the stock front sway bar. No upgrade in the front is needed or required. The addition of a stiffer front bar introduces even more push, requiring an even bigger bar in the back. With the stock front sway bar and upgraded 034Motorsport Solid Rear Sway Bar, body roll is virtually eliminated while turn in and off throttle oversteer are greatly improved.
213% - 330% Increased Sway Bar Rate (Over Stock B5 Audi S4 Rear Sway Bar)
142% - 220% Increased Sway Bar Rate (Over Neuspeed 19mm Rear Sway Bar on the Stiff Setting)
Solid Spring Steel Construction
Designed to be used in conjunction with the stock front sway bar.
034Motorsport B5 Audi A4/S4/RS4 Quattro Adjustable Solid Rear Sway Bar
Please Note: The use of a rear subframe reinforcement bracket is required with this sway bar. The rear subframe is prone to cracking with an upgraded sway bar, and will likely crack if you attempt to use this sway bar without subframe reinforcements. If you do not already have a subframe reinforcement kit, you must purchase the 034Motorsport Billet Rear Subframe Reinforcement Bracket. This sway bar fits Quattro vehicles only.
The installation of your 034Motorsport Adjustable B4/B5 Solid Rear Sway Bar is a relatively straightforward process that will take approximately 1 to 2 hours to complete. You can access our detailed installation guide by clicking the icon on the left.
Great upgrade! Its a tight fit by the fuel tank to set the bolts up for the sway bar mounts. I recommend dropping the rear sub-frame (if feasible) on the passenger side and slightly on the drivers side (4 -19mm bolts total). This drops it enough to help get the sway bar mount bolts into place behind the fuel tank. saves a lot of time and frustration. I also recommend a deep offset wrench (IIRC a 17mm) to get in between the sub-frame to tighten down the reinforcement bracket. Once installed, the results are night and day!
The 034 RSB adds a wonderful feel to the car's suspension. Pair this with the subframe bracket and adjustable end links from 034, and you have an optimal solution for our chassis stock body roll and oversteer. An excellent product from an even better manufacturer.
I have ordered the roll bar a while back ago without the reinforcement brackets thinking I wouldn't need them. Luckily I didn't install them . I have seen my buddy's m3 rear subframe crack due to a stiffer roll bar. I called them and ordered them. When received I installed it immediately. Toke it out for a test drive and felt the difference right alway. Now i'm taking 90 degree turns at 250km/h