http://www.edmunds.com/insideline/do...ticleId=119485

What Works:
Massive low-rpm grunt, spectacular exhaust note, lots of performance for the money.
What Needs Work:
Would benefit from suspension mods and stickier tires.
Bottom Line:
A huge drivability and performance improvement for a reasonable price.

Vishnu Performance Systems
www.vishnutuning.com