With the new carbon fiber Driveshaft installed, it was now time for a road test.

I pulled my STI out on the road and rolled into the throttle in first
gear, and the turbo spool seems instantaneous.  My heart began to beat faster, the tach needle raced, the red light in the tachometer ignited, and I heard the audible “beep, beep, beep” muffled by the roar of the engine; 7,000 RPM already?

I instinctly grabbed second visiously fast, too late!   My STi had hit the Rev-limiter faster than I could imagine.
Pressing the throttle further, my heart raced with the turbo engine.
Blinking red light again?  I immediately grabbed third, had I hit the Rev-limiter?  Impossible!
With the Go pedal pressed to the floor, I prepped for the three/four up-shift, the needle fired past 6,800,
So I grabbed fourth, and the STi rocketed forward violently.
The acceleration was phenomenal!   I was grinning from ear to ear.
Absolutely awesome!  I quickly applied the omnipotent Brembos to haul me down without incident.

The acceleration was intoxicating - Wow -
The STi’s 2.5 boxer turbo now bolted to it’s redline without any hesitation.  I could not believe how quickly the car accelerated and how fast it could reach redline.

The car now bounces off the Rev-limiter in each gear like a Honda V-Tec, preparing to launch at “Battle of the Imports”.

The Verdict:

With the dampening characteristics of the carbon fiber Driveshaft, I
now have confidence in the STi’s powerful boxer engines RPM limits.  The car no longer feels like it looses power in the high RPM. 

I could feel the enormous acceleration improvement both at takeoff and
through each gear; even when the car is cruising on the highway in sixth gear.
The throttle is more responsive to every input that your right foot can
muster.
Plus, the STi feels like it has picked up more horsepower and torque
across the entire RPM range.

This carbon fiber Driveshaft offers an extremely noticeable improvement in the cars performance.  My STi is now more athletic, powerful, responsive, eager and lighter than before.

Selecting each gear feels smoother, more accurate and more positive
with this one-piece carbon fiber unit.
Rolling through the gears is not a chore, but an absolute joy
This carbon fiber Driveshaft will bring out the sports car
hidden within the STi sedan.
It is a natural modification to the STi as it compliments many of the STi’s abilities and makes them better.

The car behaves like stock, only faster and much more enjoyable.

Not only will the Driveshaft please your desires for speed, it will
also please the environment, for the one-piece carbon fiber Driveshaft has improved my gas mileage by 2MPG on the average.