[junior1954]

I had the Dinan Elite installed last week in my '17 M240i x and love it. I'm a chicken and wanted a warranty. Dinan also controls 4 different parameters to JB's 2 for whatever that's worth. I also don't want to reduce reliability. Dinan claims 414 peak hp, 478lb ft peak torque, a gain of 32hp/63lb ft peak over stock, 42 hp max. I assume these numbers are at the crank. My car is not only quicker but the hesitation I experienced in Comfort mode is gone. I like sleepers so I'll be leaving the exhaust stock. I wouldn't be surprised if it didn't shave .2 off 0-60 times, bringing it down to 3.9, all while never breaking a tire loose (even in launch mode). If I keep my foot out of it mileage seems unaffected but that's not a huge concern. Hope this helps-good luck!