M@rtin
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I have a completely stock JDM v4 wrx auto wagon that I picked up cheap for DD duties. From what i've read it's got a piddly td04, 390cc injectors and of course the 4 speed slush box.
I'm wondering if a 2.5 or 3" decat downpipe mated to the rest of the stock exhaust, or possibly an aftermarket centre section would be a worthwhile upgrade ? Or is that opening up a can of worms with boost creep and hitting boost cut on cold nights under high load ?
Thanks.
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Mods for a v4 auto wrx
in Impreza, Crosstrek and XV
Posted
Not too sure, afaik the auto and manual V4 wagons had the same engine specs. But maybe the downpipe is different because of the auto trans?