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-   -   Another exhaust question (http://www.wrxtuners.com/forums/f51/another-exhaust-question-33516/)

RINGY91 01-23-2013 08:10 AM

Another exhaust question
 
I know its another silly question from a noob and seems like im :beatentod.

If i want to get a bigger catback like maybe 3" do i need to upgrade the down pipe or will the 3" fit on the stock part? I heard that the stock pipes where 2.5 that's why im wondering.

I also heard from someone i know it could be nonsense but having 2 different size pipes could take away back pressure and lose HP? ? ? I tried looking it up but im sure it could just be nonsense i over heard.

thanks guys n or girls.!Thumbs Up

WrxCruising 01-23-2013 08:18 AM

Just pick up a grimmspeed 2.5 to 3" adapter, it will make sure you won't create a exhaust leak when pairing the two together.

No I don't believe that is true, but I could be wrong.

pzr2874 01-23-2013 10:02 AM

2.5 to 3 is ok. Until you get a "stage 2" tune, it will be ok.

man show 01-23-2013 11:47 AM

Hooray for temporary cheap fixes!

RINGY91 01-23-2013 12:32 PM

ok so if i get greedy and not buy the adapter it will still work that's good to know.

I dont think im going to stage 2


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