[RPChan]

I am thinking about upgrading my Intercooler and getting a performance cold air intake. For those of you that have done it was it worth it to the point that you could recognize a performance improvement? I see a lot of these cars that have been modified and I see the dyno's put out by the performance part manufacturers but I am curious from an individual perspective if you could really tell a dramatic difference.

I modified an e46 M3 years ago with cold air, free flow exhaust and stage 2 Dinan software and while I remember thinking there was a significant improvement I am not really sure if a 10% -15% improvement was really that noticeable. So I am asking those of you that have made the changes. Was it worth it and if so whose Intercooler and cold air intake did you put on? Thanks
Robert