Quote:
Originally Posted by HP Autowerks
We only saw 8-12 whp with high flow cats vs stock.
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I came back from UK a few weeks ago and had a chance to talk to one of the tuner's there. Their test on a UK 1M showed using DP and using the stock catted section gave positive gains as well as allowed the turbos to spool faster.
Any testing with that combo? Would like to compare notes and see on a US car if it did do anything different.