What aftermarket parts can I buy to make my 03 evo louder and what are the parts that are going to make it the loudest?

 

Take off the air box, remove exhaust, and get an HKS SS blow off valve. Make sure you vent to atmosphere.....oh and don't worry about a tune. Evos don't need to be tuned with basic mods.

 

Full 3" Downpipe with a Testpipe and a catback exhaust

 

dump pipe always open

 

start searching around would make it loud

 

Put on a flame suit.



So you don't care about performance....or doing the wrong thing to hurt the car.....just loudness.

IMO you should spend $4.99 at sears for a screwdriver.
Poke whole in stock muffler.
and your all set. Should be louder.

 

ETS Turboback or Catback 3.5 FTW!

my buddy have 3" dp and test pipe and ETS 3.5 Catback it so figgin loud

 

just remove the exhaust from the dp back...

 

open o2 housing will be the loudest

 

man i would not want mine to be loud as heck at all...........its already loud with a TBE and open cone intake. couldnt imagine dealing with anything louder.

lets worry about performance and stop watching movies............LOL

 

damn id like to almost put my cat-back back on i hate now havin a quite incabin

 

Remove turbo mani...

 

^^^HAHAHAHAHAHA!!!!!!!!!!!!!

that would sure open her up........LOL

 

maybe loosen the bolts on the downpipe....oh and get a Turbonator!!!!

 

+1