I talked to a shop about dyno tuning and they told me they did not have the software to do it and they could not set it up without the software and they quoted me $285.

 

I have a 08 m50.And I installed hard krome 3" drag shots with the fi2000r...Straight from cobra..NO PROBLEMS,took a 10hr ride 5 going 5 back...Sounds gr8,runs gr8...A pop every now and then....But thats norm,untill I take off the pair valve..Cobra fi2000r works good for me..