I'm not sure. It's just everyday driving, and it doesn't involve hard driving. I drive home from work, and when I get close to home it feels like there's no power at times. Like if I accelerate in 2nd with moderate throttle and let it rev up past 4k, I can feel the engine holding back and not accelerating as hard. If I progressively press the pedal down to the floor it doesn't lunge forward and push me back to the seat.

It'll be nice for someone who has a similar experience can test to see if SB actually does anything after a long day of driving.

its still 30 days money back. guys what more can you ask? you give it a shot and if you think its crap you send it back :D

Just installed it on my G37 5AT...Product works exactly the way people are describing...Glad I got it.

so has anyone installed this on a tuned car yet? If so how is it?

Please someone tell me where i can order it online??
thank you

Selectable Sprint Booster Power Converter | SprintBooster.ca

SprintBooster by BoulekosDynamic
:tiphat:

I'm Upreved tuned and let me tell you it does compliment the throttle response.

Alright guys, I got a call back from my service dept. Apparently our cars cut power pretty early (before 220F). Nissan Tech-Line says the car actually cuts power because of oil temperature. It's not surprising, but it's disappointing because I thought the ECM would cut power after 220F.

As a personal preference, I'm fine without SB as the response isn't too bad when the car is under normal operating conditions. However, an oil cooler and moving to FI will offset this "power loss" ;)

oil cooler and hypertech:tiphat:

To those of you who have installed SB: Did it affect your gas mileage? Just curious...

Their 30 Day Money Back Guarantee has a note:

No questions asked! NOTE: Group buy, coupon code and wholesale orders do not qualify for the 30 money back guarantee.

once you have it you dont wanna get rid of it. i drive on race mode daily and never been happier about the throttle response.

Not at all man!

I hear what you saying, but would be interested to know if anyone returned the SB?

I have an AT on the base model and find that to make a quick lane change or to pass a car on the highway, I have a lag then a surge in acceleration. NOT GOOD!!

for 300$ dude vs 1000$ for a tune and according to some members even with a tune they still get this crapy lag! im getting my Z tuned in spring and im keeping my SB. once in a while i turn it off to feel the difference and man im happy i got this lil gadget!