156 2.5 V6 exhaust tips change

I just replaced my stock single exhaust tip with dual tips,(same stock box) and felt the V6 note changed when accelerating?? Less noisy to be exact.
With the stock tip, it felt a bit tighter below 3000rpm - both in engine sound and throttle response. Can it be that diameter change?
The engine had a much meaner roar before this swap ranging all RPMs...Can anyone explain this? Help...
** Any suggestions on getting that mean sound out of the exhaust end without changing the muffler?

Thanks

Hello & Welcome to AO
try posting in the 156 tech lounge

Hello and Welcome to the forum

welcome to AO...

all the best

mike....

Hello and Welcome

Thanks guys"-)

Hi Brm, welcome to AO, I see you've posted your question in the tech section, I hope you get your Alfa sorted.

welcome along

Originally Posted by classicgal93

Hi Brm, welcome to AO, I see you've posted your question in the tech section, I hope you get your Alfa sorted.

Hey thanks, it's such a small thing... but the performance changed on my V6.. sux, didn't think tip size can have such effect...

Welcome to AO