Up and down pipe question!
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This is a discussion on Up and down pipe question! within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; I have a 2002 wrx where i got the 2.5L STI block swapped in and a short ram intake but ...

  1. #1
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    Up and down pipe question!

    I have a 2002 wrx where i got the 2.5L STI block swapped in and a short ram intake but want to start making more modifications to speed this subie up. i was looking into different uppipes to buy to remove the cat but wasnt sure the best quality ones... price is not an issue because there not too expensive. I was also looking at down pipes but since i have a 2.5L sti block but everything else is the stock wrx should i get it with or without the cat to prevent boost spike or creep im not sure which it is.

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    Moderator Donkey's Avatar
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    Not sure why you have a STI short block installed if everything else is stock.Kinda strange and pointless.Anywho,if you are still running the stock TD04L-13T turbo you will need a catted downpipe for sure or you will boost creep.In fact I would think about getting rid of that turbo.The 02-05 TD04's have a different turbine housing than the 06+ 2.5L WRX TD04's.It will probably cause even more of a problem with boost creep.
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    Quote Originally Posted by Donkey View Post
    Not sure why you have a STI short block installed if everything else is stock.Kinda strange and pointless.Anywho,if you are still running the stock TD04L-13T turbo you will need a catted downpipe for sure or you will boost creep.In fact I would think about getting rid of that turbo.The 02-05 TD04's have a different turbine housing than the 06+ 2.5L WRX TD04's.It will probably cause even more of a problem with boost creep.

    yea i got the sti block put in bc the original wrx block was cracked when i was buying it. so you recomend upgrading the turbo? and if i do what one should i be looking at and what other modifications are needed for the upgrade? would i have to get ecu and professional tuning?

  5. #4
    Registered User NjBuGeyEdWRX's Avatar
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    it all depends on what turbo you plan on getting really. what kind of power are you looking for?
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    Quote Originally Posted by NjBuGeyEdWRX View Post
    it all depends on what turbo you plan on getting really. what kind of power are you looking for?
    im looking to get around 300-350 hp depending on price and like doing it over time. any other upgrade tips or ideas would be great

  7. #6
    Registered User NjBuGeyEdWRX's Avatar
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    so you want 300-350bhp or 300-350whp.

    as for turbos look into the vf39/43/30, blouch tdo5 16g/td05 big 16g or the td05 evo111 16g would all be good choices and will get you in the power range you want.
    03 WRB WRX STAGE II
    STi COMING SOON

    BUGEYE MAFIA #199

    LET ME QUOTE THE LATE COLONEL SANDERS " I'M TO DRUNK TO TASTE THIS CHICKEN . . ."

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