Hey guys, where can i purchase an RPI GTM exhaust. I've searched online and every place that shows it says out of stock. Do they not produce anymore?
Also curious if anyone has straight piped the M performance exhaust? Would that be as loud as RPI?
Please let me know any suggestions you guys have. I have a fully straight piped AWE exhaust Audi RS5 which is very very loud and I want something just as loud for the M5. Thanks
