Which pulley tensioners to replace when installing supercharger?

[imc43]

Looking at diagrams of the belts, it's a little confusing with everything going on. Can anyone offer some insight into which exact belt tensioners are recommended to be replaced when installing a supercharger? Has anyone had any belt slip issues if you installed without replacing the tensioners?

Thanks in advance.

[1SloeEm3]

Replace tensioner pulley near the alternator. I lost 2 belts due to belt slip going WOT. It even knocked the PS belt off which ended up wrapped around the fan after it was chewed up.

[Soden82]

As stated above, replace the tensioner on the driver side. You could replace the passenger side one as well since you will be in there, as well as the idler pulley.

I purchased my car already supercharged by the PO, and it had belt slip. I ended up downsizing the belt, changing all the tensioners and idler pulley, and the car has been great since