Click for Nitrous info here
It is slightly different from the Top Fuel. I have the catalog and i will tell you what the difference are. The Nitrous has a Precision Fit liner.
The Top Fuel has a Performance Fit liner, 115 flex index, 45mm velcro strap, full shock eraser bootboard, direct driver front spoiler.
The Nitrous has a Precision Fit liner, 100 flex index, 35mm velcro strap. They didn't say anything about the direct drive spolier (which can be purchased separately).
The Supercharger Ignition is not shown on the website but can be found here
. It has a 101 mm last compared to the 98mm last of both Hot Rod Top Fuel and Nitrous.
The Ignition has a PFP Comfort Fit liner, 35mm velcro strap and a full shock eraser bootboard.