No calibration needed. I also installed the Trd Pro grille which involves relocating the factory TSS sensor as well as the front facing 360 camera if you have one. The grill was simple plug and play, no errors or problems 12 mos later . If you are not changing the grill then you won’t have to touch the TSS or camera at all . I didn’t purchase from this place , this is just for reference. I actually got my fronts off Ebay and rears from Amazon. Bilstein 5100’s for Tacoma I used a set of Eibach 1” blocks in the rear, also purchased on Amazon here. Looks like everything has gone up in pricing a bit , but shop around a few places are running Memorial day sales so maybe you will get lucky. I paid $395 for fronts, $160 for rears and $99 for the Eibach blocks including all hardware. Installation is straightforward if you have the tools and the time. A recent surgery kept me from DIY so my local independent did everything. I paid under $400 for labor including a required front end alignment. I have seen pricing ranging $500-$900 from other owners who have had this same work done. My truck is a ‘21 , my factory warranty is still intact, and I have had zero issues with the components or the installation. For me the 2/1 lift level checks all the boxes for me .