You really don't need to install a chip, but you can install a speed brake by Banks, which a plug in, really simple to install and works great. Had mine for 3 years and would not do without it. I installed a Titan fuel tank that replaces the factory one and holds 52 gal. The springs will not give you any more gvwr since the truck is rated what it is. If you get sagging and bouncing install air bags which you can adjust the amount of air for a better ride. The exhaust dosen't need to be changed. I know I have done all of this and some of it is wasted money. Just an opion from someone who has experienced all of this.
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