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Old 10-15-2015, 02:51 PM
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m5james m5james is offline
Join Date: Apr 2008
Location: Kirkland, WA to Alexandria, VA - Now in Marysville, WA
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Originally Posted by Hansel22 View Post
We go to Great Lakes, I had the burger jb4 which wasn't working. After working with terry at burger he decided to pull the plug on the jb4 for the x5m/x6m. I've been loping at dinan but I can't justify spending 3500 for 50 crank HP. I had thier tune on my m3 and it was crap. Hell most of Dinan's stuff sucks.

I was really hoping the jb4 would work on my x5m cause if I had an issues with my truck it took 15 min to remove. I've now been looking at VAC motorsports tune, that's like the jb4. They say that it makes power on the dyno and it can be removed before dealer visits.

I always go to laurel BMW and I don't know how'd the feel about a tune on this as far as the warranty goes.
Have you since tried again with the JB4? I've got an ESS tune coming in the mail now, but I'm reading some M5 threads and they're getting equal if not more power using JB4/meth/stock tune vs aftermarket tunes.

650hp 10 X5///M - Stage 2, Vibrant 1794's , gutted cats, custom intake, AC Forged 22's
325hp 98 BMW 740iL - ///M5 6spd, w/ Performance Option, electric fan, CF intake tube w/ heatshield, Mag 14816 w/ notched bumper, Bilstein/H&R Stage II/Powerflex

600+hp 02 Harley F150 - MHP900 Stage 3 engine, KB2.3, 8# lower, 60# inj, Walbro FP's

135hp 01 TL1000R - M4 full exhaust, K&N, Yosh box, -1/+2 gears, 2CT's
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