Thanks for recommendation, Peter.

The next 2000 km I will wait and try. Especially I will see what happens when revving 7000 and more rpm. I have read that the P4SS exhaust is special made for her. Here is a local shop who is really great in building customized solutions for reasonable money. They made a fantastic solution for my Roadster as well.
www.f-f-motor-sport.de

A well calculated stainless steel main silencer (with same values ref backpressure) would cost me round about 350 Euro. Of course the original part would be kept for ever and can be assembled again at any time.

To be clear, I want to keep her very original. I have no need to change something just for fun. It is only the likelihood I have to cope too much SPL not to become too noticeable.


'14 4/4 graphite grey