So I had one of my bump stops already missing and the other one was about to fall off anyways so I ripped it off, this made my decision much easier since these needed to be cut off anyways and I tow a 28' camper. Install was very easy but as you can see in 1st 2 pics our fuel regulator actually has 2 bolts and kit only comes with 1 but thier instructions state X2 for PCS. Contacted them and I believe they are sending 1 to me because I told them the regulator is a bit shaky with only 1 mount. I decided to put a T in so both bags are at same pressure all the time and I just ordered a Bluetooth TPM cap which are for motorcycles but will work jus fine. I gave 4 stars for now because of the missing part and also the valve stem itself is very hard to get nozzle on and off and you lose pressure fast. I ordered an inline shutoff valve which was like $8 that will help out with that. Not going to go compressor system because I found a nice little rechargeable, hand held unit that will work great not jus for the bags but all my tires too. Nice kit though, bags seem to be of nice quality but only time will tell on all the hardware especially top plates which are pretty thin and the carriage bolts when it comes to rust issues. I plan on spraying everything with rubber coating or bed liner spray. Installed on 07 Toyota Tundra 5.7L TRD CrewmaxUpdate: contacted them about the missing fuel pressure unit missing one of the 2 brackets and they sent me all new brackets so I got and extra set of everything so TY for that. Also installed a motorcycle TPM valve cap that runs off my phone so I can keep tabs of bag pressure.... Works great!! I'm gonna give em 5 stars now. ?