I notice that new rules are posted as of yesterday. Everything looks about the same except for the new exhaust system required for 2008. I am pretty sure my new system as of this season meet these rules with maybe a few exceptions. I don’t have “A” muffler but have two mufflers in the stock location (duel cherry bombs/glass packs). Also, I think my fabricator installed a short piece of pipe (maybe 12” to 18”) on the original down pipes and then increased the size. Not sure what he increased to but hope it meets the spec or it is another $250 for me. I guess we need to figure out if two mufflers are allowed. Then I need to measure my system ID. Then I need to cut out the reducer and move it back to where the down pipes are cut. Not sure why the location of the reducer matters much but I guess if someone had the time to dyno test it it’s location may affect torque somehow.
The devil is in the details.
Michael O.