OK, here is my take on the tensioner. Had some extra time today so decided to install it. My initial concerns on the clearance between the pulley and tensioner was confirmed once I switched the pulley with the RJC unit I was previously running. Did not want a mismatched pulley. As previously mentioned the pulley bolt hole does not go all the way thru so I had to use the black oxide bolt included instead of the stock one I had chromed. Not the end of the world but would have been easy to just drill all the way thru when making this. HIGHLY suggest offering without the pulley. Weighs .8 lbs vs .2 lbs of the RJC pulley.
Biggest gripe is the RJC pulley when swapped was tight up against the arm of the tensioner, NO WAY was this going to work. Ended up throwing the pulley on the belt sander to clearance the back of it. Took off material until I had clearance. Have brought the car up to temperature and all seems OK. Really don't think the arm needs to be as thick as it is OR they should mill out a groove where the pulley outer flange is.
As supplied it will work fine and is very well made, complications arise at least in my case when trying to use other aftermarket pulleys. Not sure how a stock pulley will work out as I haven't had one in years. Going to be converting all of my pulleys over to the ones we sell in the near future.
I did not have any clearance problems with the 4" air intake pipe on my GN.
Weight of stock tensioner with RJC pulley is 3.4 lbs
Weight of billet tensioner with supplied pulley is 5.2 lbs
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