Quote:
Originally Posted by Zsteve
Steve do you need to tune after installing the new MAF? I had put one put on my TT after it was tuned and I guess cause it was a bigger MAF it caused back firing and just didnt do good.
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No...these are cut to work within the ECU self adjusting parameters which has proven pretty flexible.. Not radical at all..
The reason you needed a new MAF on your TT was because the old one was failing. All of a sudden you were asking for 40 more HP and the tired MAF couldn't supply enough of a signal to keep the fueling correct. They are particularly fragile on VW/Audi cars. On those I actually go up 12-15% in size, but up the fuel pressure to account for the lower MAF signal. Read the link in the quote above..