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Old 13 January 2010, 05:32 PM
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9116jamie
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hi i got myself an 04 wrx but was thinking of exchanging it for an sti as i fond a great deal to save on mods well mostly remap.lol.. how much more power would i expect to see with a pro drive sports cat and a s/s cat back system on the sti? and would an up pipe make a difference? thanks
Old 13 January 2010, 05:33 PM
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Shaun
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Depends on model year of STi. Circa 300bhp if it is a 2ltr with the full PPP.
Old 13 January 2010, 05:40 PM
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9116jamie
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it an 04 sti its just standard at 265 bhp wth no ppp but i have already bought a pro drive cat and scorpion cat back exhaust was just goin to put that on i would be happy with around 280-290 bhp would these mods be enough? cheers
Old 13 January 2010, 05:49 PM
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I would go for a replacement panel filter, uprated fuel pump and remap. You should see well north of 300bhp then. I believe this level of tune would give you good 320+ on that year of car.
Old 13 January 2010, 07:22 PM
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Originally Posted by 9116jamie
it an 04 sti its just standard at 265 bhp wth no ppp but i have already bought a pro drive cat and scorpion cat back exhaust was just goin to put that on i would be happy with around 280-290 bhp would these mods be enough? cheers

Easily. (once mapped for them).

Last edited by dynamix; 13 January 2010 at 07:41 PM.
Old 13 January 2010, 07:49 PM
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New_scooby_04
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Originally Posted by 9116jamie
hi i got myself an 04 wrx but was thinking of exchanging it for an sti as i fond a great deal to save on mods well mostly remap.lol.. how much more power would i expect to see with a pro drive sports cat and a s/s cat back system on the sti? and would an up pipe make a difference? thanks
How far do you want to go/spend and is it just a bit more power you're after or something more akin to driving an Sti.

If it's the later, sell the WRX and get and STi. It'll save you a lot of money in modifications! if It's the former, a good exhaust system and remap should comfortably see you in the late 200s bhp and torque and make for a great daily driver.
Old 13 January 2010, 07:50 PM
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If it's worth saying it is worth saying three times
Old 13 January 2010, 07:55 PM
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Yep, I feel very strongly about this issue!
Old 13 January 2010, 07:59 PM
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Originally Posted by New_scooby_04
Yep, I feel very strongly about this issue!
pmsl
Old 13 January 2010, 09:51 PM
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Originally Posted by 9116jamie
hi i got myself an 04 wrx but was thinking of exchanging it for an sti as i fond a great deal to save on mods well mostly remap.lol.. how much more power would i expect to see with a pro drive sports cat and a s/s cat back system on the sti? and would an up pipe make a difference? thanks
no need to change the upipe on the sti.. no cat or restriction in it.

ppp downpipe and cat back around 320~330bhp

Simon
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