Fast Intentions 18' exhaust - too loud

Cegla · 06-11-2016, 06:19 PM

Hello to all,

Im using FI exhaust with 18 resonators. After two years and 30000 miles im tired due to loudness and little drone. Its too loud for me - mostly between 1800 and 2800rpm ( very loud and deep tone ). I decided to switch to more quiet and drone free exhaust but I dont want to put OEM back. FI has some really nice gains.
I have done some research and found that HKS Hi Power should be good option for me.
Has anybody heard FI and HKS and can confirm that HKS is more quiet and drone free? Or maybe there is better option?
I wanted OEM Nismo CBE but its impossible to buy used one in Europe.

Sorry for my English.

Regards,
Chris

Trips · 06-11-2016, 06:37 PM

I had the same FI cbe #95 and after 5 years

I got the HKS, it's really quiet up until you get to 4k then it comes to life.

I took a trip from Southern California to New Mexico and the whole way it was nice low tone with absolutely no drone what so ever.

It does not sound totally quiet at idle like the stock exhaust so imo a good alternative choice for a more performance without the sacrifice of drone or raspy exhaust.

I do have hfc's btw so it's will be more quiet and feel less responsive if your on stock cats.

Breadz · 06-11-2016, 06:41 PM

Other then stock and nismo i dont know about anything quieter then fi 18 inch

Nixin · 06-11-2016, 09:07 PM

Just crank up the music, it will mute out the exhaust.

barncobob · 06-11-2016, 09:11 PM

had FI 18" for a month, too loud and droning in that rpm range, got stock Nismo exhaust and all is good.

bbermann · 06-12-2016, 08:41 AM

Chris (OP)

Having had a few custom exhausts on a few vehicles, I understand drone and how subjective sound is to different people.

On my nismo, first I swapped out the OEM cats for Berk HFCs more really more for performance than sound. Still, I did think the OEM nismo exhaust was way too quiet.

Looking for a simple solution, I installed the TopSpeed axle back. This sounded incredible...many different notes available depending on gear and RPMs with a great burble thrown in. Problem was in the cab just too loud. I could never just relax and drive- it was always loud. Maybe like your FI? This may also been because I had the Berk HFCs?

Read here on the forum about good experience with the CNT Racing cat back. They said zero drone (even with test pipes) and showed pictures after three years which still looked like new. I now have this installed and like it. Even with the HFCs, NO drone and driving I can make it relatively quiet or get on it and make it loud.

The only thing I'm not crazy about is the hiss or whatever you call it that comes along with having the HFCs. Not a big deal.

Nothing against any other exhaust brands, just my experience, in case it helps. Also, here is link which might be interesting to you:
CNT cat back review w/ video

It looks a lot like the HKS with the helmholz cannisters to take care of drone.

Good luck with your search!

zefaulter · 06-12-2016, 02:44 PM

I definitely miss my cnt exhaust

Ronin06 · 06-12-2016, 05:10 PM

Quote:

Originally Posted by barncobob

had FI 18" for a month, too loud and droning in that rpm range, got stock Nismo exhaust and all is good.

Just ordered my FI before reading this post. Hope I can live with it. Had a chance to listen to another member with the FI and stationary didn't seem bad. We'll see how I feel after it's been on for a couple of months.

Do like the idea of the HP increase and a little deeper exhaust note.

Zoom370z · 06-12-2016, 05:34 PM

Anyone here have FI exhaust for sale ?

Sent from my SM-G920T using Tapatalk

Kzonts · 06-12-2016, 05:59 PM

My FI exhaust should be arriving in the next two weeks. I ordered 12" resonators with CF mufflers. I'm hoping it won't be too loud with the stock cats. But honestly the "Z" is a sports car and isn't expected to purr like a kitten. And maybe the added exhaust note will drown out the road noise?

Cegla · 06-13-2016, 02:46 PM

Thanks for all replies.
I will try to find HKS, or Nismo OEM. CNT is not available at this time.

I can sell mine Fast Intentions exhaust with 12 and 18 resonators to someone from Europe. Shipping to US will be probably very expensive.

gbrettin · 06-13-2016, 04:56 PM

I'm not sure if you will go this route, but if you add turbos they will stop the drone.

dvo · 06-13-2016, 07:01 PM

Tanabe is another choice if you want a quiet exhaust.

somms · 06-16-2016, 02:27 PM

Honestly, I love how loud my FI 18" exhaust is. That's sort of why I bought it in the first place.

Elmo370z · 06-16-2016, 02:53 PM

I think you all may need diapers. I have lth on a 12inch res and its way to quiet

06-11-2016, 06:19 PM	#1 (permalink)
Cegla Base Member Join Date: Mar 2013 Location: Poland Posts: 18 Drives: 370Z GT Edition Rep Power: 12	Fast Intentions 18' exhaust - too loud Hello to all, Im using FI exhaust with 18 resonators. After two years and 30000 miles im tired due to loudness and little drone. Its too loud for me - mostly between 1800 and 2800rpm ( very loud and deep tone ). I decided to switch to more quiet and drone free exhaust but I dont want to put OEM back. FI has some really nice gains. I have done some research and found that HKS Hi Power should be good option for me. Has anybody heard FI and HKS and can confirm that HKS is more quiet and drone free? Or maybe there is better option? I wanted OEM Nismo CBE but its impossible to buy used one in Europe. Sorry for my English. Regards, Chris

06-11-2016, 06:37 PM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,732 Drives: 🔰 Rep Power: 10	I had the same FI cbe #95 and after 5 years I got the HKS, it's really quiet up until you get to 4k then it comes to life. I took a trip from Southern California to New Mexico and the whole way it was nice low tone with absolutely no drone what so ever. It does not sound totally quiet at idle like the stock exhaust so imo a good alternative choice for a more performance without the sacrifice of drone or raspy exhaust. I do have hfc's btw so it's will be more quiet and feel less responsive if your on stock cats. __________________

06-11-2016, 06:41 PM	#3 (permalink)
Breadz Base Member Join Date: Jan 2015 Location: Clovis Cali Posts: 240 Drives: 12 370z sport 6mt GM Rep Power: 10	Other then stock and nismo i dont know about anything quieter then fi 18 inch abm89 likes this. __________________ Fast Intentions Non res CF, CF Duckbill, Stillen G3, Fujimura Diffuser, Swift Springs, 180 Headlights, Forgestar F14Bronze

06-12-2016, 08:41 AM	#6 (permalink)
bbermann Base Member Join Date: Feb 2015 Location: Wauconda, IL Posts: 218 Drives: '13 370Z nismo Rep Power: 21	Chris (OP) Having had a few custom exhausts on a few vehicles, I understand drone and how subjective sound is to different people. On my nismo, first I swapped out the OEM cats for Berk HFCs more really more for performance than sound. Still, I did think the OEM nismo exhaust was way too quiet. Looking for a simple solution, I installed the TopSpeed axle back. This sounded incredible...many different notes available depending on gear and RPMs with a great burble thrown in. Problem was in the cab just too loud. I could never just relax and drive- it was always loud. Maybe like your FI? This may also been because I had the Berk HFCs? Read here on the forum about good experience with the CNT Racing cat back. They said zero drone (even with test pipes) and showed pictures after three years which still looked like new. I now have this installed and like it. Even with the HFCs, NO drone and driving I can make it relatively quiet or get on it and make it loud. The only thing I'm not crazy about is the hiss or whatever you call it that comes along with having the HFCs. Not a big deal. Nothing against any other exhaust brands, just my experience, in case it helps. Also, here is link which might be interesting to you: CNT cat back review w/ video It looks a lot like the HKS with the helmholz cannisters to take care of drone. Good luck with your search! zefaulter likes this. Last edited by bbermann; 06-12-2016 at 09:41 AM.

06-12-2016, 05:59 PM	#10 (permalink)
Kzonts Track Member Join Date: Mar 2015 Location: Greenville, SC Age: 61 Posts: 872 Drives: 2019 Roadster Rep Power: 200741	My FI exhaust should be arriving in the next two weeks. I ordered 12" resonators with CF mufflers. I'm hoping it won't be too loud with the stock cats. But honestly the "Z" is a sports car and isn't expected to purr like a kitten. And maybe the added exhaust note will drown out the road noise? OTW Z-Boy likes this.

06-11-2016, 09:07 PM	#4 (permalink)
Nixin A True Z Fanatic Join Date: Sep 2015 Location: GWN Posts: 3,488 Drives: Goodbye Z! Rep Power: 19833	Just crank up the music, it will mute out the exhaust.

06-11-2016, 09:11 PM	#5 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 590	had FI 18" for a month, too loud and droning in that rpm range, got stock Nismo exhaust and all is good.

06-12-2016, 02:44 PM	#7 (permalink)
zefaulter A True Z Fanatic Join Date: Jan 2013 Location: Toronto, Canada Posts: 1,983 Drives: 40th 370Z Rep Power: 27	I definitely miss my cnt exhaust

06-12-2016, 05:34 PM	#9 (permalink)
Zoom370z Enthusiast Member Join Date: May 2014 Location: Lincoln ca Posts: 308 Drives: 2011 370z auto 7 Rep Power: 11	Anyone here have FI exhaust for sale ? Sent from my SM-G920T using Tapatalk

06-13-2016, 02:46 PM	#11 (permalink)
Cegla Base Member Join Date: Mar 2013 Location: Poland Posts: 18 Drives: 370Z GT Edition Rep Power: 12	Thanks for all replies. I will try to find HKS, or Nismo OEM. CNT is not available at this time. I can sell mine Fast Intentions exhaust with 12 and 18 resonators to someone from Europe. Shipping to US will be probably very expensive.

06-13-2016, 04:56 PM	#12 (permalink)
gbrettin A True Z Fanatic Join Date: Oct 2010 Location: Portage, MI Posts: 2,284 Drives: Tricycle Rep Power: 589151	I'm not sure if you will go this route, but if you add turbos they will stop the drone. TerribleONE likes this.

06-13-2016, 07:01 PM	#13 (permalink)
dvo Base Member Join Date: Jul 2011 Location: Gardena Posts: 129 Drives: FD Rep Power: 14	Tanabe is another choice if you want a quiet exhaust. __________________ http://www.facebook.com/rrydes

06-16-2016, 02:27 PM	#14 (permalink)
somms Base Member Join Date: Jun 2013 Location: Boston Posts: 131 Drives: 2011 370z SP MT Rep Power: 12	Honestly, I love how loud my FI 18" exhaust is. That's sort of why I bought it in the first place. TBatt likes this.

06-16-2016, 02:53 PM	#15 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,709 Drives: 09 nissan 370z Sp M6 Rep Power: 295378	I think you all may need diapers. I have lth on a 12inch res and its way to quiet somms, Spooler and Kzonts like this.

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