Quote:
Originally Posted by Zzsteve
in back to back dyno testing, (same day, within about 1 hour, without unstrapping the car from the dyno) we found no measurable power difference between the catted, and offroad downpipes (ZZP) downpipes. we did several pulls with both pipes, and it was less than 1 WHP difference between all of them. this was on a bolt on/tune/93 car. both pipes are a noticeable gain over stock.
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Weren't you the same company that stated there is no gain with bolt-ons without a tune period not more then a year ago from now atleast? If you tuned you changed things to adjust for the bolt-ons so if you have the dyno charts for this we would all love to see them so we can better understand what to expect.