E46Fanatic;408340 said:
Velocity swears that the performance exhaust was his best mod. Most E90 post folks also state its the most enjoyable mod even more than the intake. As for the rasp of the Performance intake it comes in late i.e. 6-7k rpms and is a real ego booster haha. Any others who have installed it wanna share their experience?
Eh... So how ah? Let's do it..!
Schwepps... we do together gether so that we get to yak and enjoy the benefits together gether... Golly, I'm tipsdy...
BMW Performance Air Intake System
Getting everything your engine has to give.
The BMW Performance Air Intake System captures all the air your engine can possibly use, then introduces it as evenly as the engine can possibly use it, in the highest possible density. It generates more complete and more explosive combustion—and a fuller expression of your engine's sheer power and torque.
Upgrading to a BMW Performance Air Intake System will unleash gains of up to 3 horsepower and 3 ft-lbs. of torque, while also helping the engine to operate more efficiently with a 30% reduction in back pressure and increased overall performance.
This dynamic breathing system was developed with computer simulations that revealed the optional size, shape, number and position of pathways that not only allow, but actually inspire the most unrestrained flow of fresh air.
The end result is a vehicle that responds to throttle inputs more robustly, and accelerates more energetically. It is not a coincidence that the innovative BMW Performance Air Intake System even makes your BMW sound faster.
BMW Performance Exhaust System
Turn your power loose.
Like a world-class athlete, your BMW's engine needs increasingly more oxygen as it reaches its physical limit.
To accommodate this need, BMW engineers looked to the other end of the vehicle, namely the exhaust system. The very act of controlling exhaust gases—to reduce noise and heat—restricts their exit. And overcoming this restriction, or back pressure, forces the engine to work harder, using its energy for something besides moving you forward.
Enter the BMW Performance Exhaust System. This solution produces an outflow of exhaust gases that is so free (though still under control) that it markedly reduces back pressure. The flow is free enough, in fact, to actually pull more air into the engine. So while it's saving power at one end, it's increasing power at the other. RPM performance is heightened and engine performance is increased by up to 5hp and 3 ft-lbs of torque at 6600 RPM.
The result is that your engine runs more smoothly, revs higher, and accelerates faster. And its new, deep, racing growl will be music to your high-performance-attuned ears.
