ZZP 3800 Rear Sway Bar


22 reviews

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

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 HALLOW).

ZZP rear sway bar is 18.5mm SOLID.


  • Sway bar
  • Bushings

Shipping weight is dimensional.

  • 1997-2003 Grand Prix
  • 2004-Current Grand Prix
  • 1997.5-2005 Regal
  • 2000-Current Impala
  • 2000-Current Monte Carlo
Suspension & Brakes - ZZP Rear Sway Bar
Suspension & Brakes - ZZP Rear Sway Bar
Suspension & Brakes - ZZP Rear Sway Bar
Customer Reviews
4.9 Based on 22 Reviews
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Kadin K.
United States United States
Top Quality

Fits great, adjustable rigidity, nice paint job and no more expensive than trying to find a stock replacement half the time. Installation was a breeze, except for the part when I couldn’t get it shimmied between the exhaust (it was upside down). PS: I was really surprised at the difference I felt after I installed this. I purchased the zzp rear and front sway bars. Although both were top notch, I actually noticed more of a difference installing the rear one. Great products as usual.

Shawn C.
United States United States
05 Monte Carlo ss

Great upgrade for rear sway bar

Isaac G.
United States United States
Stout swaybar

Replaced the front and figured I'd match the rear up too. Like that you can adjust it. Saving up for new struts now.

United States United States
Worth the money

I had originally had the GMPP on my last w body, chose the zzp one on my newest w body. Not sure if there is any actual difference between this and the GMPP other than the red paint but it handles well with it either way! Install required me to drop the rear muffler hangers to fit in the new bar as the new one has an extra tab extending off of it for what I assume is other cars and creates a couple of clearance issues during install.

vincent h.
United States United States
Performance upgrade

Handling of the new sway bar excellence with the use the moog ploythane bushing 14mm the car corners like a dream