Originally Posted by
Grinder
The SIRIO gives more midrange power, and gets better runtime than the nova 2015. The SIRIO comes with it's own short very conical header.
what do you think of the 2052 i think, the "fat baseball pipe" novarossi? will that be any good with the eagle9? im looking to get at least 5 min runtime...what restrictor do you recommend as well? i have the RX8, so i have to run that stock clutch for now, thinking sheperd spring would be the way