Im planning on buying a hedman glass pack muffler in replacement for my resonator pretty soon here to route into my 40s, but is the pipe diameter 2.50 inches in and out? I also want to make sure these are of decent quality and will give me a much deeper sound? Ive also been looking at high flow cats and tossing that u-bend to go with it. i bet that would sound sweet.

 

takin out the resonator and putting glass packs doesnt do anything to the emisions does it

 

not that i know of