Just had PPP ecu fitted to my impreza 99 allready have stainless steel cat back system also today purchased STi intercooler with Y pipe, how much extra BHP will this give me ? whats the next easy mod, centre decat perhaps >?<
thanks

 

what version sti intercooler did u purchase?

 

version 5/6

 

u wont gain bhp through an intercooler,that particular i/c u have will be capable of around 300bhp,but u need more supporting mods.check out my wagon as im currently running that i/c.the intercooler is to keep the charge temps down,for big power u will need front mount or sti8 i/c,im upgrading to sti8 i/c soon,bigger injectors etc and am hoping to fetch about 340. but if u look at my wagon u will see what i have done.

 

u have good power for mods there greenwagon. i running about 310bhp on my vf23 turbo. i want the max 330 but means another map tweak. i dunno how to get this extra as im bit stuck. currently have k an n ind kit, full decat, walbro pump, kakumei headers (sounds lovely) uk300 tmic an 440 cc injectors as standard, higher grade plugs, anythoughts mate, ive always thought wud i gain more power on a map tweak in winter rather than summer

 

yeah u will need a map tweek for more power with bigger injectors,what torque did it produce?

 

slightly wandering off topic what power gains should I expect with my mods on a late 99 classic, with the 5/6 version STi intercooler and Y pipe, PPP pack and stainless steel cat back exhaust ?
will a decat centre increase it by much, seems the easiest next mod.. easyer than down pipe decat !

 

250 ish? centre decat should release a few extra.maybe 260?

 

they say the ppp package gives about an extra 30 to 40 bhp so id say about that as greenwagon says. sorry bout that mossi

just to also answer a question. i got map by jgm but didnt get a reading as i felt he knew the power but say about 300 lb ft torque. i might just leave car as not worth it an happy as it is

 

spot on cheers

 

She will run about 240-250bhp depending on fuel and if you decat that centre pipe, but you will gain extra torque which you will feel in 5th (which will feel like the old 4th).

Tony

 

excellant thanks, now the hunt starts whos got a spare centre de cat pipe for a 99 classic >>>??<<

 

Cold air is much better for your engine and you should get a slightly better BHP result in the winter.

 

I have exactly the same as you bar I have a FMIC and I have an Apexi induction kit.
I made 330/320 so it is possible

 

cheers for replys guys. im gonna put a cold air feed to the air filter. prob wont notice anythin much but better for the engine