bed liner and tunnel cover

any advice for bed liner and tunnel cover for Y05 Silverado, 6.5' bed

Thanks

 Line X bed Liner. Its spray on. I just got it done I love it

Line X is not my choice. It looks good, but that's about it.  Put a knife under it and you can easily pick it up and out.  Rhino Lining is MUCH tougher and adheres better.  Better damping and quieter truck as well.  There are also some other brands out there that are much more rugged than Line X and possibly better than Rhino.  The most important thing is getting a good install and finding a reputatable dealer.  Check out their work and get references first. A poor install can be disasterous.  Be sure that they spray it on on a cool dry day for best results.  The ultimate is to order the factory composite bed which is virtually indestructable.  The only possible downside is that the composite  bed/rear end of the truck is lighter than the stock steel truck bed and if you do not plan on putting any weight in the back on a continuous basis, people have complained that the rear end feels "flighty" and especially bad in snow and wet.