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

39 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 39 Reviews
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Collin L.
United States

Great Product!

Installed this on my 2007 Monte Carlo SS. Really helped the overall balance of the car. No more excessive understeer!

Justin B.
United States United States

Far superior to the factory sway bay. Install took about 30 minutes. Huge difference in the amount of body roll in the rear of the vehicle. Joined with strut tower braces and chromoly trailing arms thats the was the car is supposed to feel! Great product! Buy one!

Anthony R.
United States United States

Rides like a totally different car

I own a 2006 Grand Prix Base. I feel like it was cornering on 3 wheels before purchasing this ZZP upgrade. I live in a mostly rural area and a lot of the roads are curvy. I remember having to slow and now have no issue with maintaining speed while taking the curves. I feel that the price is reasonable and well worth the cost. Thank you for such a great product!

ZZPerformance ZZP 3800 Rear Sway Bar ReviewZZPerformance ZZP 3800 Rear Sway Bar ReviewZZPerformance ZZP 3800 Rear Sway Bar Review
United States United States

Great fitment

Fantastic and huge improvement over stock.

ZZPerformance ZZP 3800 Rear Sway Bar ReviewZZPerformance ZZP 3800 Rear Sway Bar ReviewZZPerformance ZZP 3800 Rear Sway Bar Review
Jim f.
United States United States


The ZZP rear sway bar makes the OEM one from my 02 Monte look like a piece of wire, super beefy compared to it. Sort of disappointed it didn't come with all the hardware like the front sway bar did so ended up refinishing the GM straps, not a huge deal and they fit the new bushings great. It fits a little tight and you have to sort of wrangle it in between the struts so put some duct tape on the inside of the bar at the ends where they curve to protect the nice finish. Also helps to spread a bit of silicone grease to both the inside and outside of the bushings and they'll slip together and tighten up a lot easier. I ended up using the link mount at the very end of the bar, seemed like if I used the second one in (the one that lines up with the OEM bar) it pushed the bar down too far and it would hit the lower strut mount ******. Overall a fantastic upgrade.

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