Originally Posted by ZKindaGuy

The Fast-Intention's complete exhaust install from headers to tips with installation, required tune and a CAI added in comes to a little over $4000. The dynos they have posted to YouTube specific to a 370Z show and overall gain of 21 RWHP and 17 ft-lbs. of Torque.

Cost per HP gained: $191 / 1 HP gained
Cost per TQ gained: $235 / 1 ft-lb. gained

Unless you are adding on a blower or turbo which makes the intake and exhaust mods almost mandatory, the cost per HP/TQ gain FAR SURPASSES any gains to be made with redoing your exhaust. It's absurd and rediculous to spend these figures for such a diminutive return.

Save your money for something else.....