yes. coolant reservoir for the blower. i ordered the 07+ for the primary battery location in my 05 sierra. fittings seemed to be in the proper location

 

Ordered a big dick 2.5 gallon tank from nitrous express.

 

I got tired of carrying around a 2 gallon jug, just in case, so I put the 7 gallon tank in the bed. I can go for a good while before worrying about it getting low. You do have to install the solenoid on the feed line though as the head pressure of 7 gallons will push fluid through the pump and then out the nozzle. They tell you that in the install instructions but I didn't read them. I woke up to a wet spot under the right front on the driveway.

I couldn't do the extra tank under the hood as I already have the HEX tank under there.

 

One of you meth addicts should install a DEF tank complete with filler cap.

 

When i ordered the alky control kit i was concerned about loosing the washer tank too, julio also sent me a smaller tank that fit on the drivers side behind the fuse box. He also sent me extra washer hose to connect it. I Think that all was 20-30.00 extra. It works perfect, its alot smaller but does the job.