ive been thinkin lately that i want to get a second pipe comming from around my cat that is strait 3" piping. The point being when my vtec crossover hits, the exhaust goes from a beastly rumble in low rpm's( only on hondas ) to an open header like thunder from 4500 all the way up. the best way of doing so IMO is some kind of Heavy duty butterfly valve on the original exhaust that re-routes to the 3" pipe. I have tons of ideas, but i am not a fabricator,YET. Im hoping that someone can chime in and give me some suggestions as to simplify this process with junkyard parts. I have tools enough to cut the pipe but not to weld.

 

Welcome to a little thing invented decades ago by hot rodders called an EXHAUST CUTOUT.

BTW, you're a ***, go die please.

 

yo, my car has mad veetach and i want every single slow *** mother ****** out there to know it when i fly by them in my purebread race machine....bitch you will hear the power of veeeaaatack when i do my ricer flyby!!!!

 

thanks for the info

 

kind of a general statement
all motor guys could eat you up for saying that

 

I think he was being sarcastic.

 

could've sworn that those bastards in japan....u kno...those nobodies that made that company....whats it called...oh yea HONDA used 2.5 piping for there B series vtec engines stock.....or am i mistaken

 

I used a 2.5" pipe for the exhaust on my hatch when my b16a was n/a. Goes straight back and under the gas tank and has a slight angle out the back to a 2.5" inlet canister muffler. Absolutely no restriction, worked great but the best upgrade was to cut the smaller 2" or 2.25" collector off my header and weld a 2.5" on there instead. All in all it's still pretty useless...for what little you gain out of it in n/a form all I have to do is turn my boost controller up 1 psi and make more power than what you would have gained after all that work. :P