Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

2007 STI upgrades

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Old Mar 24, 2011 | 04:24 AM
  #1  
Suby Kid's Avatar
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Car Info: 2007 Wrx Sti
Talking 2007 STI upgrades

I just bought a 2007 sti and im already looking to do some basic bolt on upgrades.
It came with an spt intake already. Any suggestions on exhaust? i dont wana a real big can like my old 2.5 cause i got pulled over too many times.. something like the spt catback. Suggestionss... input...
Old Mar 24, 2011 | 06:33 AM
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Nur spec r ( blitz ) and cut out the resonator, it's the only way to do it!!! Hurry and go get one!! Lol ... Spt or a Borla hush
Old Mar 24, 2011 | 08:12 AM
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i got a borla hush with a helix dp and its very low key...i also have a hks carbon ti BNIB still have no desire to put it on
Old Mar 24, 2011 | 08:48 AM
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i also run a borla hush with a helix catted DP along with a header and catless UP it sounds nice a you get nice power gain.
I also recommend a road tune which will give you even more power and and smoother driveability, plus makes it so your motor is not running too lean, which can happen when adding a intake and exhaust.
A header is also a nice upgrade for a little extra power.
Old Mar 24, 2011 | 08:54 AM
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Originally Posted by kchao707
i got a borla hush with a helix dp and its very low key...i also have a hks carbon ti BNIB still have no desire to put it on
If u don't want the hks I kud trade u for my hi power + cash
Old Mar 24, 2011 | 05:54 PM
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Suby Kid's Avatar
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all sound like good posibilities i really like the spt exhaust.. kinda weird but i think it would be awesome if all the upgrades on the car were spt. except for an acessport lol... and whats this crap that you can only use the accesport with a stock intake? no cold air?? whattt?
Old Mar 24, 2011 | 06:03 PM
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i have a fujitsubo power getter and a jdm cusco downpipe ill sell for fairly cheap and i can install it too
Old Mar 24, 2011 | 06:13 PM
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first mod should be save your money for a new engine or keep it stock (exhaust and tune only), the 2007 sti's are prown to blowing
Old Mar 28, 2011 | 05:08 AM
  #9  
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why would i buy a new motor? i just wana do exhaust and chip..
Old Mar 28, 2011 | 07:35 AM
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Car Info: 07 SWP STi
Originally Posted by 04caliwrx
first mod should be save your money for a new engine or keep it stock (exhaust and tune only), the 2007 sti's are prown to blowing
This is incorrect. While the 07 sti's have a crap tune from the factory and simple reflash from a reputable tuner makes this a false quote. My 07 sti has run fine for over 70k miles. Stage 2 since about 9k miles.
Old Mar 28, 2011 | 09:41 AM
  #11  
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sounds better to me.. but no one is yet to answer my question at to why or do i have to use a stock intake with and accesport?? can someone answer that please?
Old Mar 28, 2011 | 10:11 AM
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If you get the car protuned with the intake you are fine. The only intake (besides stock) that is supposed to work with the AP is Cobbs's intake. IMO intakes are a waste of money if you are running a stock turbo. Just put drop in a K&N (remove the silencer if you want the extra intake sounds), install dp and exhaust (better yet get a EL header w/up pipe) and go get a custom stage2 tune. The problem with aftermarket intakes without tuning for them is that it may cause boost spikes that will damage your motor. ( 07's are known for this)

Last edited by Wally's World; Mar 28, 2011 at 10:14 AM.
Old Mar 28, 2011 | 05:13 PM
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hmm i see but does it really matter that much? anyways hows everyone feel about the borla hush?
Old Mar 28, 2011 | 07:14 PM
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Originally Posted by Suby Kid
hmm i see but does it really matter that much? anyways hows everyone feel about the borla hush?
I guess it doesn't matter so long as you have 5 grand saved for a new motor. Maybe you will be o.k. running your spt intake, after all it's your motor. I went with a Cobb SS catback because of the stock looking muffler, sounds good and still flows really good. The hush is pretty similar, maybe a little quieter.
Old Mar 29, 2011 | 09:19 AM
  #15  
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hmm yeah i like that whole idea of looking stock but underneath really not. cops cant harass you on that lol. cobb makes good stuff i should really check out there exhausts. lol how bout a crawford gymkhana exhaust?? lol



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