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Old 05-16-2013, 07:31 PM   #17 (permalink)
forza370z
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Quote:
Originally Posted by NickTurnon View Post
If you want to stay quiet & pass emissions then you will want to keep your stock cats.
So that means no high flow cats, no test pipes, etc..

You didn't mention the type of car that you have, but im going to assume base or sport 370z.

Intakes yield good gains. K&N dropins + MAF Tubes = 16whp compared to Stillen g3s 18whp

QUIETER EXHAUSTS with gains:
Fast Intentions 18" Resonator
Stilen Catback
CNT Catback
Nismo Exhaust

Do some searching on here buddy...
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

Quote:
Originally Posted by NickTurnon View Post
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.
Loud or not, the AAM short tails sound amazing!
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