Originally Posted by
foreigneRS
probably - as they do on bikes. it's a good way to 'cheat' the system as you only have half of the airflow to silence so can get away with smaller silencers
Exactly why im asking. Id like to track the Chaser, and even my turbine outlet internal diameter is 3.5in, and with 600bhp+ it needs a 3.5in system too really. And thats expensive and loud usually.
But a 3.5in downpipe splitting to a twin 3in system with a decent sized silencer each exiting either side (and obv no unsilenced screamer pipe) should probably get past noise regs and be cheaper than a quiet 3.5in system.