With the knowledge gained working on previous projects we decided to create our own line of ZZPerformance coilovers. Through extensive testing we have found an optimal spring rate, 6.6kg front and 6.6kg rear. Perfect for the daily driver or those looking to track their w-body car. This spring weight has been highly debated within the community for years; however, after testing various spring rate setups, a heavier spring (like the 8k) made for an uncomfortable ride and created handling imbalances. Competitors Coilovers include a 5kg front spring in their kit, ours being a touch heavier benefits performance while not hindering ride quality. Ride height adjustability is done via the shock body, meaning spring pre-load is preset for optimal performance. We went with a long front spring and shock combo to retain suspension travel, something that many coilovers lack. These coils adjust anywhere from stock height all the way down to be able to tuck tire, meaning you can dial in your ride height for any desired stance.

As many of you are very familiar with the current BC product offering you will get all those features and then some with our ZZPerformance coilovers. ZZP coilovers weigh less, and include a custom top plate instead of reusing the stock plates. We moved the sway bar attachment to the body of the strut to better control load. We offer double the warranty of BC's, 2 years against any defect. This shows how much we stand behind our product. Our coilovers also come with more dampening adjustment range so you can fine tune for your specific build and desired ride quality. Our coils were built with every climate in mind; being based in Michigan we know how much the elements affect suspension parts, so we made sure the welds are up to our standards as well as the powder coated lower collars are reinforced to withstand rust. All other components are anodized, or powder coated to resist rust, we do this because we know nothing is more frustrating than your coilovers getting seized after one winter of daily driving. No one knows W-bodies more than us, and we know that these coilovers showcase that.

January 2022 Update: All of our ZZP W-Body coilovers now come with the 04+ style front lower mount. 04+ Grand Prix do not need to change to the 97-03 style control arm any longer. 

April 2023 Update: All of our ZZP W-Body coilovers now come with a rear camber plate and pillowball mount for more adjustment in the rear. 

Featuring:

• Front and rear pillowball mounts
• Height adjustment front and rear
• 32 clicks of damping adjustment, front and rear
• 2 year best in class ZZP warranty
• Front and rear camber adjustment
• 6.6kg front spring rate, 6.6kg rear spring rate
• Road noise isolators on top and bottom of front springs
• Coated top hardware for rust protection

Fits:

• 1997-2008 Pontiac Grand Prix
• 1997-2004 Buick Regal 
• 2000-2013 Chevy Impala 
• 2000-2007 Chevy Monte Carlo 
• 1997-2005 Buick Century 
• 1998-2002 Olds Intrigue
• 2005-2009 Buick LaCrosse/Allure

Install note: Per our video below, we recommend 2 spanner wrenches width of preload on the front springs.