Update if anyone interested.
Still no Apex exhaust parts. The Quick fix (Polaris Turbo Dragon) got 398 miles in Ontario, on her last weekend. Ran with 08 Nitro, 07 Attack, 800 Rev Blizzard, Turbo Switchback.800 Renagade.
Dragon Ryde FX skid is very stiff, Led to some sore mussles. No issues...