Yet Another FI Exhaust Review. 56k GG.

spearfish25 · 02-16-2010, 05:17 PM

Quote:

Originally Posted by EVL370

Does the 18" resonator give the exhaust a deeper tone then the 12"?? Everywhere I read just about everyone with HFC/RTP has the 18" resonator.

Does the 18" resonator simply sound better or is it the drone factor? Sorry just sometimes the simple questions are hard to find here...

My understanding is that the 18" is quieter, so people probably tolerate volume addition of the HFCs better. I'm sure Tony can comment for you though.

earwicker7 · 02-16-2010, 05:23 PM

I'd recognize those uncomfortable Hot Rod stools anywhere... when are you going to get some real seats, Tony? My a$$ still hurts from sitting on there for four hours

F.I. Inc. · 02-16-2010, 05:58 PM

Quote:

Originally Posted by earwicker7

I'd recognize those uncomfortable Hot Rod stools anywhere... when are you going to get some real seats, Tony? My a$$ still hurts from sitting on there for four hours

Hey, hey take it easy on my stools. Those things are seasoned!

Nikon FM · 02-16-2010, 08:18 PM

Quote:

Originally Posted by spearfish25

My understanding is that the 18" is quieter, so people probably tolerate volume addition of the HFCs better. I'm sure Tony can comment for you though.

Lower frequency sound has longer wave lengths. In basic logic the idea of the 18" is to reduce lower frequency noise than the 12". "Quieter" is simply a vague term based on how we hear. Reducing a lower frequency noise source may not sound quieter because our hearing is more sensitive to higher frequency noise.

Saying all that above.... I have the FI resonated test pipes with the 18" CF resonators and really like the sound.

02-16-2010, 05:23 PM	#2 (permalink)
earwicker7 Enthusiast Member Join Date: Jun 2009 Location: Burbank, CA Posts: 265 Drives: 09 370Z (maxed out) Rep Power: 18	I'd recognize those uncomfortable Hot Rod stools anywhere... when are you going to get some real seats, Tony? My a$$ still hurts from sitting on there for four hours __________________ 2009 Magnetic Black 370Z with Touring, Sports and Navigation Packages--Fast Intentions CBE with 12" Resonators/Carbon Fiber Mufflers and LTH--Stillen G3 Cold Air Intakes, Underdrive Pulley and Grounding Kit--Uprev Tune

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