I will have 2 2" 'extensions' to eliminate the bell that's created from the end of the glass pack to the tip of the exhaust.Turned down or inboard for race day? (tire warming)
Insert a tip cone with large holes? Just 1 dB is close.
Hope your measurement is accurate (or at least very conservative).
A very minor issue of the rack is leaking, but the car did awesome... me, I've got a lot to learn.... the difference I need to make up is 6 seconds. There was someone there who I think does the Optima challenge. He was 6 seconds faster then me (won the class).... I wasn't last - call it 'mid pack' but I have so much to learn (not whining, recognizing the challenge that I will overcome).Sounds like your next big block build might be for the motorhome. MORE POWER!!!! Seriously though, a more modern transmission would likely be as big of a help. My parent's motorhome would be completely transformed by the 6 speed auto that is in my truck. It tows our camper great, but the electronic control aspect of it makes it a bit more of a difficult retrofit into an older model. It can be done, but is probably easier with an entire drivetrain swap. Probably easier just to warm up the big block and add a Gear Vendors overdrive to get a few more gears to help pull it out of the hole when the Vette is in tow. How did the car do?
I see a lot of that on CF. Several folks were complaining about the rebuilt ones they got from Zip Products leaking, but I see Zip is now showing out of stock. Good luck.wow, the impossibility of getting a rebuilt steering rack for a C5 or C6 is pretty remarkable.... I bought another used one, figure I'll get my current one rebuilt (maybe?)