what is right for me.. i have a 2003 evo and an hks cat back exhaust what kind of down pipe and text pipe do i need? that will make it full exhaust right? and how do i get rid of cel tune? help plz!

 

Well I say sell your exhaust and just by a full TBE with test pipe from somewhere liek Buschur Racing instead of mix and matching. But yes a dp, test pipe and your cat back portion would make a full tbe exhaust.

As far as your CEL, get a sparkplug defouler and screw it onto your rear o2 senor then put it back in your exhaust.

 

I'm guessing you exhaust bolts to your stock cat now so any company's 03-06 DP and test pipe will work.

From there as for the CEL you can use 2 spark plug non foulers to extend the O2 bung or disable the P0420 code routine in the ECU

 

you think i should just get a new exhaust? i dont have alot of money eithere the most i would do is ebay exhaust

 

I dont think he needs 2, I only used 1 to get rid of mine.

 

Dont buy a ebay one just save your money and buy a bushur one or a ams one youll be happy with either one i have had them both stuck with the ams one though haha

 

Like they stated above, just get a downpipe and test pipe with foulers to extend the rear O2.

But since you are there why not a o2 housing also, and then a turbo, and then a manifold,LOL

 

I honestly do and not for performance reasons lol. I mean the BR exhaust is great and a system that was made to work with the other parts will maybe net a little more power. It might not either, but I have this petpeeve about mismatchign parts. I'm like OCD on that for some reason.

 

Oh cool. My Injen has a extended J Bung. So never had to do the fouler trick.

 

I guess it might depend on how big the defouler is, I don't know if they come in different sizes or not. Hell I dont even remember where I boguht mine as it was almost 3 years ago.