These are the hard pipes that connect to the engine block, which the radiator hoses attach to. The outlet has the two sensor holes. These often corrode and pit heavily, causing leaks. If you're doing a 120k install, now is the time to replace these.
Price is for a pair. You can select just one if you don't need a pair.
Please be aware that Nissan / Nismo / Infiniti pricing is subject to change.
