huckleberry, do you have a header? how much did sound decrease?
I have been thinking about getting a twin loop for awhile (my vibrant set up gives alot of highway drone) the hytech is pricey even for just the muffler. Yours is a great price I am thinking about trying it out.
Not the best thing out there but if you have a 3" exhaust and are tired of it being too loud, a spiral flow muffler might be a good addition but will probably bump your power potential down to like a 2.5" exhaust b/c there will be some restriction but it says it's good for up to 850cfm on the 3.5" muffler. I suggest placing pretty far up the line b/c you will have less of a pressure drop at higher exhaust velocity areas (it's a % correlation b/c exhaust gas velocity decreases the further away from the header you get)
I want to delete my resonator from my cat back to my stock muffler. I like the way the stock muffler id tuned. I don't want to change that. My question here is, will removing the resonator make it a little louder if I just replaced those sections with straight pipping will it make the note any louder? On my integra I did the same thing and if I feather the gas pedal I would get nice little back fires. Will it do that same on the Si? I'm not looking for any gains just curious how the over al sound wil be. Bash if you want, I don' car I'm looking for hep from people who are actual car people who can off some constructive help for me. Thanks. So my plan is?
stock headers and cat straight pipe back to stock muffler