Best way to go for power/tq and little noise?

N8GTOL

Some people may not quantify the FI exhaust w/ 18" resonators as "quiet". It is probably the louder of the options listed above. Don't get me wrong, I have this exact setup with stock cats and stock intakes and I love the sound, but my wife can hear my car on a cold start two stories above our underground parking garage.

This exhaust system is prolific enough that you should have little trouble finding another member in your area that has a similar setup and then you can judge for yourself.

If you buy it and later decide you dont like it, then it is easy to re-sell too.

NickTurnon

Everyones got an opinion. My definition of loud is just different then yours. I rock AAM Short tails & I don't think thats very loud. Some people say its a 8 or 9/10 loudness. I would say its about a 6 or a 7.

The fast intentions 18" I would rate in at around a 4 or 5.
With TP's or HFC's its a 6 or a 7.
With 12" resonators + Tp's or HFCs its a 7 or an 8.

I think a ten is short tails plus test pipes or straight piped with test pipes.

Thats not to say that I dont think Fast Intentions is the best exhaust for the z, because I think it is. OP just asked about loudness and price, so i suggested those because they are relatively quiet with good gains.

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2009 Brilliant Silver BASE 7AT | TEIN S-Tech Springs | K&N Drop Ins & z1 Maf Tubes | AAM S-Line Short Tails | 5% Tint | 20MM Spacers | Sport Spoiler NickTurnon's 370z Build

forza370z

16 whp? I thought it's about 5 whp from the drop-in alone. The z1 tubes was declared no HP gains. But yes, K&N drop in is definitely the best bang for your buck. My butt dyno approves

Loud or not, the AAM short tails sound amazing!