I had the info at one time, but can't locate it. Check with your dealer.
This was an issue on 2388s, so there was an orifice added, but I'm not sure what model year it was. Our 2002 doesn't have the orifice, and the header engages fast. The problem this causes is that when it does engage, it can bottom out the belt tensioner on the right side (the one right by the front tire, on the belt going to the header. For us, the tensioner broke, which is why I learned about this.