The following modifications automatically place the vehicle in the appropriate Improved class with the corresponding penalty points.
Penalty points resulting from modifications described in "C" above must also be counted to determine final classification. 11 or more total points will advance a vehicle to the appropriate Modified class.
Table 3. Improved Class Modifications
Any intake and fuel delivery system modification or substitution not allowed in "A" or "B" above, other than adding turbochargers or superchargers. (If points are applied under this provision, any modifications to which Items 5, 6, and 7, Table 2 applies are free)
Increase of up to 120 cubic centimeters in engine displacement over stock by any method.
Compression ratio or boost may be increased by any method (If compression is increased only as a result of a permitted overbore - 0 points).
Altered transmission (type, gear and ring and pinion ratios).
Any machining, modification of, or substitution of front or rear suspension parts, other than free modifications permitted above, may be done as long as the location of the suspension mounting points is not changed. (If points are applied under this provision, any modifications to which Item 11, Table 2 applies are free)
Use of any out of series (as defined in Appendix A) or non- Porsche brake rotors or calipers. (If points are applied under this provision, any modifications to which item 9, Table 2 applies are free)
Any method of cooling the engine is permissible.
Race, non-DOT, or recapped tires. Tires may rub lightly in Improved and Modified classes.
Wheel diameter other than as available from the factory for the model range.
Rim width more than 2" wider than stock (see item 8, Table 2).
1 additional point for each additional inch
Any modification to fenders or wheel openings is permitted. This does not permit replacement of entire quarter panels or fenders with panels made of lightweight materials.
RMR/AMR Event Rules – 2008Page 17