Sprintbooster

[motordavid]

Not a matter of "trusting" any poster here, or the pages of testimonials...
if the prod is that effective, one would think the car mfgers would be lining up to
add the prod. or, the technology. Imo, and in my long time but, possibly lower tech
view of "car gizmos", the gadget may or may not have some different "feel"; whether
it provides for real world, testable and repeatable statistical improvements is another issue.
I really could not care less...it just seems to this reader that two pages of a couple posters
bantering about some $300 buck gizmo that gives better toe in pedal feel is overdone.
And, it smacks of pump and dump, imo. My Qtr's up.

[rodybmw]

It's interesting how the only people who have bad things to say about SB (or are dubious about it) are people who have never even tried it.....while the people who have tried it on multiple cars wouldn't live without it. As a matter of fact those of us in this thread that have used the Sprint Booster before (me and sirees01) are so satisfied with it that we want one for our other cars too.

Placebo effect? Well, that wouldn't explain how my wife noticed that her car felt quicker when she didn't even know I had installed anything on it.

I respect everyone's opinions here and feel that it's great for anyone who is curious about the SB to read opinions from both sides. However, I do have to say that every one of the arguments that you guys are making I have read over and over again by others on other BMW boards (heck, I even made the same arguments myself for the longest time)........but when the same people (including me) finally gave in and tried the Sprint Booster we never looked back.

This is not an "Ad/Promo for this gizmo" and I'm not getting a "cut" from every Sprint Booster that is sold.......I'm just someone with first hand experience with using it on two cars and when the subject came up I just expressed my opinion on it. At $250 (or even $300) it's the cheapest way I know of to add some zip to the car and it can be installed or removed by the owner in less than 5 minutes......which is not the case with most other products like re-mapping, etc.

If you don't believe that the Sprint Booster works, think that it's the placebo effect, or you don't feel comfortable using it on such an expensive car then just remember that no one is forcing you to buy one..............just as no one is forcing anyone to continuously come back and read this "Ad/Promo".

[buschy]

rody's got a point.

I still would not put a $300 electronic modual from a not very known tuner on my car.
thats all

[rodybmw]

Originally Posted by motordavid

Not a matter of "trusting" any poster here, or the pages of testimonials...
if the prod is that effective, one would think the car mfgers would be lining up to
add the prod. or, the technology. Imo, and in my long time but, possibly lower tech
view of "car gizmos", the gadget may or may not have some different "feel"; whether
it provides for real world, testable and repeatable statistical improvements is another issue.........

I would agree with everything you just said, but one thing gets in the way....and that is the fact that I actually tried out the Sprint Booster and noticed a difference.

Repeatable? Absolutely.......every time I step on the pedal.
Testable? I don't know....maybe it improves the 0-60 by 0.1 or 0.2 seconds, maybe it doesn't, but unless you are racing against other cars or measuring acceleration times to see whose "times" are faster then it really doesn't matter to me. What is much more important for me on day to day "real world" driving is how much quicker if feels with the SB vs. without it, and that is repeatable. That "feel" is real for me......but whether it translates into a measurable amount in the 0-60 acceleration is irrelevant in my day to day driving.

I think I mentioned this in one of my "banters" above, but just to elaborate more..........the difference that the Sprint Booster makes is MUCH more noticeable on my 545 with the V8 then it is on my wife's X5 3.0i. It definitely makes a noticeable difference on the X5 3.0 by making it's otherwise anemic acceleration be more in par with her old E53 3.0....which is all she wanted anyways. However, with the 545 the Sprint Booster gives it an almost violent kick when you accelerate. The push back into the seat is immediate and much more intense than without the SB when accelerating from a stop, or even when going 50-70 MPH etc. This is something I haven't been able to emulate with just mashing the pedal down all the way fast when the SB is removed.

[motordavid]

I'm glad you like the gizmo and the feel.

[rodybmw]

Originally Posted by buschy

rody's got a point.

I still would not put a $300 electronic modual from a not very known tuner on my car.
thats all

Buschy, even though I have installed it on my cars I can definitely understand your reluctance to try it. No one should install it if they are not comfortable with it.

[buschy]

but if it was the same thing but had a dinan, hartge, etc sticker on it I would try it, know what I mean.

[rodybmw]

Originally Posted by buschy

but if it was the same thing but had a dinan, hartge, etc sticker on it I would try it, know what I mean.

I completely understand as I would usually be the same way ..........just in this one case a couple of my friends that I trust a great deal from E60.net (who were at first suspicious about the SB theselves) finally tried it and started raving about it.....so that convinced me to try it, otherwise I wouldn't have felt comfortable with it because it's not from a known tuner, let alone famous BMW tuners like Dinan, AC Schnitzer or Hartge.

[sirees01]

WoW, I didn't expect an innocent post about a product to create such flaming reactions from some members.
I certainly have no interest in the product, I merely wanted to give forum members a heads up on it.
I too was extremely sceptical about it's claims & sticking in on a very expensive ML, however I did some research on the net & spoke to many people who had given it a try & it was ALL positive feedback.

My guess is, if you can afford an X5 i'm sure a cynical member here can afford the bucks to give it a whirl & if you are not happy with it or can't feel the difference (i'm sure you will) stick it on e-bay.

Nothing ventured nothing gained

[sirees01]

Sprintbooster fitted to our new X5 today & it makes a very noticeable difference. The car feels far more responsive, not as aggresive as the ML.
Driving in DS mode really does feel much quicker.
Took 5mins to install.