Originally Posted by Munit
Not really a guessing game. As long as temps were not extreme and a few runs were done to get some kind of adaptation average happened 265 is really low for catless, intake/drop in and a tune on a dynojet with 93 octane.
I would ask you when did you have your plugs changed? I am guessing you are not hitting your timing targets which is the primary way a tune increases power. WIthout good plugs you will knock before ever hitting the targets
I don't know just baught the car from BMW , has 50k milg , now that u mention it it does smell rather rich at stop lights !!!! What is normal dyno results for my mods ?