....yeah, when you split the exhaust it barks alot more. On my 38 coupe ( pics in my other rides ) , I built the headers 2 cyl to a 2.5" collector then into a 2.5" pipe, thus giving 10" of pipes out the back ( 4 x 2.5). That really split the sound and sounds like a pile of machine guns. 8 pipes out the back would give even more music. ....I like it !!!