the noise level i don't mind too much, it is the drone inside the car that i am concerned about.

and i am keeping my factory cats

Go with 18" resonators and you won't have any issues. Especially on the stock cats

If your keeping your stock cats,than your not overly concerned about power gains,just a change in sound. If that's the case,you might be better off just finding some axel backs. Save a bit of money and you don't have to wait for the exhaust to be made.
Anybody know the muffler brand that fi exhaust comes with?

i have the stillen on my Z and i don't regret getting it, but i also wasn't looking for a loud exhaust.

If you're gonna drop money on an exhaust.... Why not make it known:tup:


370Z exhaust system FI carbon fibre CRAZY NOTES!!!!

We have installed a bunch of both and have never had a customer say a bad thing about either. Both bolt up with no problems with great fitment.

If you require a more mellow and lower volume overall the Stillen may fit the bill for you.
If you are OK with a higher volume and a little more raw sound than the FI will be perfect.

Thanks all for the replies guys

I have the FI w/ 18" resonators...LOVE it!

Get nothing but compliments on how it sounds, adds decent power.
Super high quality product.