SFR is now offering a single turbo system for the 2002-2009 Nissan Altima Sedan with the 2.5L QR25 engine. This system bumps up the power level to 225WHP! This is about 275 horsepower as measured at the flywheel.
Needless to say, this tranforms your Altima into the most unsuspecting sleeper to ever to hit the road. Boost pressure is set at 4.5 psi. Even at this moderate boost level, you can expect years of trouble free operation out of your completely stock engine.