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Just bought a 2007 STI hawkeye and it's got a milltek on, but it's a standard map. I keep seeing people commenting that it's a risky setup - should I be worried?
I think you have fitted Miltek Sport cat with resonated center pipe,its OK run without the remap there,if you will want more power i would suggest remap,but until you don't need remap.
I would have a remap if any flow changes to the downpipe if only for peace of mind but it also seems pointless improving the exhaust without getting the benefits that a remap will give. Wrx is usually more forgiving than sti but after fitting parts the remap is the icing on the cake and makes it all worthwhile. If you just want improved sound just fit a cat back then all will be fine without remap.
How spikey is a boost spike, I saw a spike of 1.2 this evening for a split second...
Boost spike can be occurred if its outside colder etc.
If you are experiencing boost spike i would recommend visit nearest Rolling road and ask about the power run with DET and afr test or visit your nearest Subaru specialist in your area.
Originally Posted by scottie wrx
Ah I see, so will my wrx hawkeye be ok wen I put my full cobra turbo back on it has two sports cats and no remap?
On WRX if you are put full decatted exhaust you will be OK too without the remap,another story is on STi,due there is bigger turbo and there you can see mentioned boost spike
19 August 2011, 10:23 PM
Standard map risk on milltek 2.5" exhaust?
