turbo sock

Is there a source for premium quality turbo socks ?

thanks

Try Pittsburg Power.

Thanks Jack,
Made some calls today, one was to my friend at Detroit Diesel parts here in KC. After running the engine numbers Bob determined the sock was a item installed by Prevost and appeared to be mfg to Prevost specs. Called Prevost parts and priced out at $267 Canada item. Seeing Pittsburg Power site the picture appears the same with price at $327.
Think I'll go with the Prevost sock.

Why replacement of this item ? rock hard, cracked, has a tear. I would guess the sock was removed and suffered some damage.