ZZP 3800 Rear Sway Bar

ZZP 3800 Rear Sway Bar
ZZP 3800 Rear Sway Bar
ZZP 3800 Rear Sway Bar
Suspension & Brakes - ZZP Rear Sway Bar

ZZP 3800 Rear Sway Bar

44 reviews
Regular price $149.99
  • In stock, ready to ship
  • Inventory on the way

Updated 11.2021: The all new ZZP solid rear sway bar is large and in charge. A full inch in diameter (25mm) this our largest and most effective rear sway bar making it the ultimate weapon for improving handling and making your W-Body turn corners. Paired with our ZZPerformance solid front sway bar there’s a whole new meaning behind the WideTrack we all know and love.

Once you add some basic handling mods such as lowering springs, upgraded struts, better tires, etc, it becomes increasingly important to consider upgrading your sway bars. As you improve the ability of your car to stick to the road, you will notice an increase in body roll (or sway/lean). This is where a stiffer/larger sway bar setup becomes beneficial. Sway bars work by distributing the upward/downward force of the car evenly from left to right, in an attempt to keep the car level (eliminate the heavy lean, or body roll while turning) the factory sway bars are sufficient for a factory suspension/tire setup, but once you change things out, they are no longer enough. This is where the larger diameter/stiffer sway bars come in, they will help keep all 4 tires planted firmly on the pavement, and drastically improve your cars handling ability.

Sway bar 101: This is assuming you have a properly setup front/rear spring rate and good shocks/struts...  For example, lets say you are coming into a corner fast and want to make the turn.  If the car tends to understeer (front pushes/does not turn) you will want to increase the rear sway bar stiffness.  People generally prefer oversteer (rear swings out) in a corner in a front wheel drive car because you can always accelerate out to control the amount of oversteer.  If the car oversteers a lot, then increase the front sway bar.

This is the next step stiffer bar than the GMPP rear. (18.5mm HOLLOW).

This bar is 25mm solid. 


  • Sway bar
  • Rubber Bushings

Shipping weight is dimensional.

  • 1997-2003 Grand Prix
  • 2004-Current Grand Prix
  • 1997.5-2005 Regal
  • 2000-Current Impala
  • 2000-Current Monte Carlo
Customer Reviews
4.9 Based on 44 Reviews
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Tyree K.
United States

zzp rear sway bar 25 mm

feels a thousand times beefier than the old 18mm sway bar. i’m glad zzp is still making parts for the 3800 keeping the platform alive

Frank F.
United States United States

Perfect for your w body

Easy remove, easy install wish the 140mm links were available so until then I’m using standard links. The standard links need an extra lock nut to stay tight but the bar overall is perfect I almost couldn’t recognize my own car went from a sloppy boat fwd to something that I bet could handle a track day no problem in the cornering department

United States United States

Grand Prix GXP

ZZP's sway bars are the best you'll find. The install is easy and you can definitely tell a difference in handling, especially in turns. These sway bars helped my GXP a lot after I lowered it on ZZP's BC Racing coilovers. Very cost effective suspension upgrade that works as advertised.

Christopher B.
United States United States

Easy upgrade

The original sway bar is a cheap piece of garbage compared to this one. It's a LOT beefier. The install was pretty easy, just had to drop one of the mufflers down and I never even took my rear tires off. Not sure if it has turned it into a rally car but I am glad I did it. I also left all plastic on till I was ready to bolt it in.

Jacob C.
United States United States


Installed on my 15 limited ltz. Feels way better around corners!

ZZPerformance ZZP 3800 Rear Sway Bar Review
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