This is a must buy product if your looking for that classic turbo whine. By 2500 rpm there is a clear audible turbo whine inside the cabin. Deffinitely a must as it also makes the car feel more alive in stock form. Great bang for the buck. Even better when coupled with the Forge atmospheric valve. At 5k rpm in 4th I still had 7 psi boost where I would normally have 4 to 5 psi on stock intake and BPV.

Rating: [5 of 5 Stars!]