The RC-40 is actually 'straight through' too. I noticed this when I was putting
the system together. But I think there is a lot more to it than that. The RC-40
system is 'tuned' specifically for the a-series engine, and the two cans are
placed a specific distance apart so to enhance 'scavenging' of exhaust gasses,
and to cancel out noise. I think Vizards testing showed that the RC-40 flowed
good, if not better than an 'open' pipe.
>Subject: Re: Supertrapp
>To: Bryan.Vandiver@eng.sun.com, firstname.lastname@example.org, email@example.com,
>In a message dated 10/4/99 7:04:42 PM Eastern Daylight Time,
><< I installed the RC-40 system on my bugeye. It was rated by Vizard as the
> 'flowing' of all the systems he tested. >>
>I am looking at a $15.95 muffler with 2" inlet and outlet (Will use a step
>down adapter welded to the muffler)-- a glasspack that you can see straight
>through. No testing required to see that this is the best flowing of all,
>with all due respect to Vizard. You couldnt get much better flow than
>"straight through" can you?