MarkD chip

[tonytony]

how is it compared to a JC chip anyone?

[peteM3power]

Mine is fantastic. Much better than stock, good use of money.

Same here!

Pete

[Jordan325iC]

Mine is fantastic. Much better than stock, good use of money.

[nando]

It doesn't take long for the computer to remap if you give it a good Ferarri tune up. Meaning, drive the holy #@$%^ out of it for about 20 minutes. It'll run much better afterwards. :)

[JRKOUPE]

I instlld the 93 octane/stock injector version last week on my 90 325 i. Only drove car for about 1 hr but she clearly pulls harder to redline and seemed to have better throttle response above 4500 rpm. Engine is stock except for a 2.5 " exhaust including a hi flow cat on back to muffler. Car ran poorly for about 20 min ,.......bad idle and wanted to stall. I was warned by another chip user the same happened to him, but after that all was good. I dont know why, maybe car was remapping?........introducing itself to new software?.........Im curious to see how car feels on DE track days. I look forward to the increased redline. Lets hope my rocker arms dont mind.