Against my better judgment, I bought a Sprint Booster v.3 last fall, because the throttle response on my ZHP, unlike my 330xi’s, has always seemed slow. Installed it today, and I must say I’m under-whelmed by the difference. On race mode setting #9, I think the response is A LITTLE quicker. Of course, I relish the fact my car runs a teeny-tiny bit better, but I’m on the fence as to whether it was worth it.
2004 BMW 330i ZHP (52k miles), Jet Black with black leather, MFactory LSD (3.38) with Z4 cover, 18"x8.5" ET38 APEX Arc-8's (Anthracite) with 245/40 Michelin PSS', Koni Sports with factory springs and front and rear reinforcement plates, Shark Injector, Corsa TSE3 cat-back exhaust, TMS under-driven pulleys (water & steering), CDV delete, TMS CF strut brace, K&N CAI, GAS DISA rebuild, TMS pedals, Wheelskins steering wheel cover, roller tray center console, black-out grilles, and WeatherTech mats