Would new exhaust increase BHP without Map????
#1
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Will I receive any increase in power in my Classic STI 555 if I upgrade the headers/up pipe/downpipe & 3" straight through rear section without having it remapped?
#5
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#6
Scooby Regular
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you can do it and will notice a big difference, it will probably run a bit rich and may overboost, if it does you will need a boost controller,or fitting a z4 ecu works on a 93wrx as i have done it and done 80.000miles like it, but make sure you get your afr's checked to be safe![Thumb](https://www.scoobynet.com/images/smilies/thumb.gif)
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#7
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Would a Z4 increase performance from mine? Not sure what ECU mine runs but know they were 275 from factory.
I was looking to run 350 with Exhaust system (which I already have from an old car)/Better Intercooler/ TD 05 Turbo/ yellow injectors & uprated fuel pump. If I then have to figure into the price a new ECU(£?) & remap £300-400 it makes it seem like a huge amount of cash for a relatively small gain (max 75 BHP).
I was looking to run 350 with Exhaust system (which I already have from an old car)/Better Intercooler/ TD 05 Turbo/ yellow injectors & uprated fuel pump. If I then have to figure into the price a new ECU(£?) & remap £300-400 it makes it seem like a huge amount of cash for a relatively small gain (max 75 BHP).
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#8
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Would a Z4 increase performance from mine? Not sure what ECU mine runs but know they were 275 from factory.
I was looking to run 350 with Exhaust system (which I already have from an old car)/Better Intercooler/ TD 05 Turbo/ yellow injectors & uprated fuel pump. If I then have to figure into the price a new ECU(£?) & remap £300-400 it makes it seem like a huge amount of cash for a relatively small gain (max 75 BHP).
I was looking to run 350 with Exhaust system (which I already have from an old car)/Better Intercooler/ TD 05 Turbo/ yellow injectors & uprated fuel pump. If I then have to figure into the price a new ECU(£?) & remap £300-400 it makes it seem like a huge amount of cash for a relatively small gain (max 75 BHP).
#9
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Spot on dude.
I just went all out with mine at the weekend, 2002 bug wrx.
A whole ruck of mods, finished with a super rom remap, launch control, duel map, anti lag etc etc.
Thee BEST money I've ever spent!! I'd reccomend a remap to anyone!!!
I just went all out with mine at the weekend, 2002 bug wrx.
A whole ruck of mods, finished with a super rom remap, launch control, duel map, anti lag etc etc.
Thee BEST money I've ever spent!! I'd reccomend a remap to anyone!!!
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