More than a few modern sports cars have a switched or automatic switch that opens a valve to allow straight-through exhaust. 
__________________
2005 Saffron Yellow Elise, Sports & Touring Packages, Hard Top, Stage II Exhaust, '07 Probax leather seats. Los Angeles Lotus Service by Qais at 310-200-0022.
"We know they're magical and worth every minute we spend on them. The whole Lotus owners' world is like a secret handshake among people who understand that." (R&T)
|