UNDERWHELMED with new Sprint Booster
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From: Pittsburgh, PA
My Ride: 2008 Alpine White 550i Sport, Cream Beige Interior, 6-Sp Manual - retired 9/2011
Originally Posted by pgetsch' post='739440' date='Dec 6 2008, 12:11 PM
what are the differences???
i want to get one but not sure which one...thanx
i want to get one but not sure which one...thanx
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Originally Posted by pgetsch' post='739440' date='Dec 6 2008, 11:11 AM
what are the differences???
i want to get one but not sure which one...thanx
i want to get one but not sure which one...thanx
The one for manual transmission being a bit more sensitive if I remember correctly.
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From: NJ (EXIT 4), SUMMERS IN GREECE
My Ride: 2006 550 SMG
Guys when I had my 550 SMG I tried both auto and manual. The manual one was crazy, I felt like it was going to burn out the clutch, so I used the auto one. Between having the sprint booster and the SMG tranny there was no lag at all. Dont know about the Auto tranny since its prone to have more lag anyway.
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From: Staten Island, NY
Originally Posted by DrLev99' post='739531' date='Dec 6 2008, 02:28 PM
I am pretty sure you know which type of tranny you have? SMG, auto or manual? I think that should make your decision pretty simple, or am I missing something here?
hahahahaha....i read the post incorrectly. i thought there were 3 types of sprintboosters for automatic trannys. not one for each type of tranny. sorry for the confusion.
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From: Ft. Lauderdale, FL
My Ride: 2004 545i, Sport and Premium package, Titanium Silver with Black Dakota Leather interior
OK, I think I have changed my mind. 
I drove about 50 miles today, both city and highway. Thanks to Puck's suggestion for tranny reset, the acceleration feels much smoother. I have also noticed very little lag and I am definitely aware of a more spirited acceleration. In D mode I have no fear of slamming the pedal, but in DS mode there is a risk of redline if the pedal is slammed... as I did this last night. I never hit redline before installing the booster. Anyway, I had to work today but I really enjoyed my 50 mile roundtrip and I am now thinking that the $270 I spent on the sprint booster was well worth it. 
I drove about 50 miles today, both city and highway. Thanks to Puck's suggestion for tranny reset, the acceleration feels much smoother. I have also noticed very little lag and I am definitely aware of a more spirited acceleration. In D mode I have no fear of slamming the pedal, but in DS mode there is a risk of redline if the pedal is slammed... as I did this last night. I never hit redline before installing the booster. Anyway, I had to work today but I really enjoyed my 50 mile roundtrip and I am now thinking that the $270 I spent on the sprint booster was well worth it.
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From: Rockaway, NJ
My Ride: 04 530i Space Gray/ Black Dakota Leather interior with SMG, Sports Package+ Paddle Shifters, HUD, NAV, Premium Package, Multi-Contour Seats, Xenons , Logic 7.
Originally Posted by DrLev99' post='739216' date='Dec 6 2008, 01:48 AM
I don't believe the 25-sec accelerator reset works with the SMG tranny. However, at least on my M5, there was a SMG reset feature, by holding both paddles forward for 2-3 seconds, while in neutral going between 20-70 mph. I would think this also applies to non-M SMG transmissions.
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My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
Originally Posted by rogerj' post='739671' date='Dec 6 2008, 02:35 PM
OK, I think I have changed my mind. I drove about 50 miles today, both city and highway. Thanks to Puck's suggestion for tranny reset, the acceleration feels much smoother. I have also noticed very little lag and I am definitely aware of a more spirited acceleration. In D mode I have no fear of slamming the pedal, but in DS mode there is a risk of redline if the pedal is slammed... as I did this last night. I never hit redline before installing the booster. Anyway, I had to work today but I really enjoyed my 50 mile roundtrip and I am now thinking that the $270 I spent on the sprint booster was well worth it.
I drove about 50 miles today, both city and highway. Thanks to Puck's suggestion for tranny reset, the acceleration feels much smoother. I have also noticed very little lag and I am definitely aware of a more spirited acceleration. In D mode I have no fear of slamming the pedal, but in DS mode there is a risk of redline if the pedal is slammed... as I did this last night. I never hit redline before installing the booster. Anyway, I had to work today but I really enjoyed my 50 mile roundtrip and I am now thinking that the $270 I spent on the sprint booster was well worth it. 