Coilovers are a replacement (usually an upgrade) for a car that has a Strut Type setup. Coilovers contain a damper and a spring (Coiled "over" the damper).
That being said you can replace or change the springs or spring rates on your Coilovers. In addition you can replace or change the dampers on some of the more expensive Coilovers.
So to answer you original question, you can not replace shocks and/or struts on a car equipped with Coilovers. Apples and Oranges - they are both fruits but not the same kind.
Hope this helps.
shock absorbers
You could have worn out shocks or stuts
Steven Stuts is 5' 8".
Steven Stuts was born on December 22, 1987, in New York, USA.
How do you remove the stuts rear from ford crown victoria 92?
Richard Stutsman goes by Stuts.
In the engine bay. Infront of the stuts
not for the novice. One of the steps involve compressing the coil springs
around 100-120 bucks
Steven Stuts has: Played Steven in "One Life to Live" in 1968. Played himself in "Rehearsing a Dream" in 2006. Played High School Student in "The Naked Brothers Band" in 2007. Played Hipster in "Important Things with Demetri Martin" in 2009. Played Restaurant Patron in "Important Things with Demetri Martin" in 2009.
possibly the rear sway bar links
A broken strut will cause a bumping sound when the wheel hits a pothole or bump. It will also make the same sound if the wheel spins under hard acceleration.