I searched under the "how to" subfolder how to update rear suspension. I know how to change the rear sway bar but is there a tutorial for control arms and end links rear? I don't thinks there is one.

That said, how difficult is it to upgrade both? What would be the advantages for having these upgraded?

Thanks

Courtesy Alta Performance.

 

No tutorial required, it's as easy as it looks. You change the lower control arms to adjustable for camber correction, and upper for toe correction. Very few people bother with the uppers. These cars are designed to increase negative camber in the rear as the spring compresses. Thus, when a suspension is statically lowered via springs, the negative camber naturally increases. Correction is required to maintain tire life (and contact patch) on street driven cars.

Don't forget to follow up with an alignment - the whole point of this exercise. There is an additional "benefit" of firmer bushings or Heim joints with the aftermarket parts, although I prefer the stock rubber in good condition for a street car.