For Capristo, you can contact Toni Capristo direct - he answers always personal. [email protected] Normally he has always the right answers for all questions around his exhaust systems.
Many thanks for your help @ Rolando And thanks to all the info from everyone else... if there is any further info you guys like to share pls have them coming... i welcome any other idea. I will share my final choice as well as photos once i have made purchase decision
my M now has 72,000 mi and 11 years of ownership and extreme pleasure. the tubi exhaust is still loud at 70 mph freeway speed making conversation difficult. i am usually alone so that is not an issue and i have high quality music earphones available. H...., the ex ferrari mechanic told me when i had him balance, fine tune, and test drive my engine after 60k mile, engine-out service: a) non ferrari setup of precat , test pipe, tubi slightly confused the factory engine management program at the oxygen sensor b) my 1/6 exhaust appears to be very slightly rich compared to 7/12 c) minor issue, understand it, and dont worry about it d) the car runs strongly john s