That little piston is in that thing for a reason.... Back pressure. Adjustable to boot. Did you try all the settings available to you with that pipe?

Maybe you would have done better with a different pipe more suited to your needs. The CVEC was !QUOT!tuned!QUOT! for a certain application... If it did not do what you wanted, Id take a better look at the PIPE you would need to have.

Adding ANY type of hose, even if its them kool exhaust deflectors, will change the attitude and performance of the pipe.