Thanks for the write up. I have been thinking of going with the Dinan tune also but hesitated as I had not heard from anyone who had completed it on a vehicle lately. It is good to hear of your experiences and impressions.

How is the throttle response from cruising at say at 40 MPH? I am very interested in hearing your impressions on "tip in acceleration", not a hard stomp, just a 20-30% increase in throttle pressure.

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2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green