X liner in rear wheel wells

[nsdq3]

Used the 3m undercoating on mine. Spent about an hour taping and masking and 20 bucks at autozone. Great bang for the buck.

Knocked it out about 1 1/2 years ago and still looks like it should have came from the factory

 

[AggieSVT]

Can anyone tell me if they remove the fender flares when they spray the wheel wells? I am going to do this myself hopefully tomorrow. I'm assuming they should stay in place so they continue to fit tight to the wheel well.

Also, I plan to use a wire brush to rough it up in lieu of sand paper. Good idea or not??

Thanks for any advice.

I didn't remove the flares on mine, just taped off carefully. As far as sand paper or not, I'd go by whatever the manufacturer of the product you're using says.