Believe it or not the hardest part is jacking the front end up so the you can crawl under the car and be able to turn the tires.
Raise the car so that the tires are off the ground, loosen the clamp on the bellows
(it's the rubber looking hose) slide the bellows back turn the wheel to one side as far as they'll go and slide the new limiter in, do the same thing to the other side, slide the bellows back in place tighten the clamp lower your car back to the ground.
My guess the total process is take you less than 10 mins.