Cutting off HKS Hi-Power Exhaust resonator

haddy98 · 04-19-2011, 07:12 PM

Hi guys,

I just want to ask your opinions on something. I just recently installed the HKS Hi-Power Exhaust for my 370z and it doesn't make that much of a sound inside the car. I asked a friend of mine to drive it and let me listen to it. It sounds pretty good from the outside but there seems to be something that's making the sound less louder. A few friends of mine asked me to cut the resonator off and replace it with straight pipes instead. The resonator is located at the H pipe. Has anyone done this before for their 370? How does it sound like? I'm also planning to change my HFC in the near future. How will that sound like after getting rid of the resonator? Hope you guys can help me out.

Thanks in advance

AK370Z · 04-19-2011, 10:47 PM

Please don't! That's the beauty of this fantastic exhaust! It sounds quiet when you're driving your Z on the highway or on the road at low rpm, but the moment you open the throttle up, the canisters are bypassed and sounds absolutely exotic. As the RPMs rise, the sound increases. I love every moment with it. It rarely has any drone at any RPM and I have done 4 hour continuous road trip with 0 headache. This exhaust is probably one of the well built and intelligently designed exhaust for 370Z. If you wanted something loud and with straight pipes, there's a Magnaflow exhaust for sale of $800. Sell this HKS and buy one of those. I do not recommend cutting this beautiful exhaust. Just my

KillerBee370 · 04-20-2011, 01:45 AM

You bought an exhaust just to have it sound loud in the car??

You could've saved money and just cranked up the stereo.

dark_nismo · 04-21-2011, 09:56 PM

I would 'NOT' mess with a well made exhaust. Just like others have stated, install H.F.C's. I did. HKS W/ F.I H.F.C'S, No Light. Very satisfied.

B.A.Q · 04-21-2011, 10:04 PM

I had the same thing when I got my GReddy but wanted it to be a little loader. so got the HFCs and try them you will get an awesome sound don't do anything to that exhaust that will loss its value. HFC for a deeper sounds and good gains. or test pipes for laud and raspy sound with more gains.

Footloose301 · 04-22-2011, 06:53 AM

Dont you dare ruin that exhaust lol!

I just finished up bolting on some GTM Resonated Test Pipes and it's quite a bit louder, deeper, and more powerful!!!!

This hiss of our VQ's might get to be annoying but I'm happy now.

haddy98 · 04-23-2011, 01:12 PM

Thanks guys. I'm planning to get my test pipes by the end of the month. I'm sure from the comments you gave, it will sound awesome!

Jamaica · 04-23-2011, 01:43 PM

oh no...

GTLAW · 04-04-2012, 10:05 AM

How do you guys feel about Fast Intentions? better then HKS? also custom made to your liking?

Jamaica · 04-04-2012, 11:27 AM

Quote:

Originally Posted by GTLAW

How do you guys feel about Fast Intentions? better then HKS? also custom made to your liking?

Fast intentions is a custom exhaust made to your liking. They have multiple options to chose from. Better options then HKS but overall its all about what you want.

Nikkolai · 04-04-2012, 07:42 PM

Holy jeebus, please take everyone's advice and not ruin a quality part. Still not satisfied? Sell it and I bet you'll still have enough for a different catback.

04-04-2012, 11:27 PM

Got hks with some test pipes believe me its loud enough

Urbanracer · 04-06-2012, 06:41 PM

I have the HKS with Berk HFC's, its plenty loud. Mine sounds about the same as the link below although this guy has TP's. I'm very happy with the HKS and glad that I went with it.

370z HKS Hi Power Exhaust light launch - YouTube

jameeljoker · 03-21-2016, 08:45 PM

Reviving this from the dead but has anyone done it? I have the same setup with berk HFC and the tone is nice just not loud enough. At this point with the HKS system selling so cheap would it be worth cutting out the resonators? Can anyone who has done it chime in

BadChachi · 03-27-2016, 11:05 PM

Quote:

Originally Posted by jameeljoker

Reviving this from the dead but has anyone done it? I have the same setup with berk HFC and the tone is nice just not loud enough. At this point with the HKS system selling so cheap would it be worth cutting out the resonators? Can anyone who has done it chime in

I just installed Megan racing TP and Agency power true dual exhaust. Gains are what I expected but the sound is no where near where I want it. It's loud but very raspy especially when I let off the throttle and not deep enough. In the cockpit it sounds amazing but when I roll down the window it sounds like a ricer to me. Gonna delete the resonators and I'll post a sound clip. Should happen by Thursday

04-19-2011, 07:12 PM	#1 (permalink)
haddy98 Base Member Join Date: Apr 2011 Location: Brunei Posts: 25 Drives: 09 Nissan 370z M6 Rep Power: 15	Cutting off HKS Hi-Power Exhaust resonator Hi guys, I just want to ask your opinions on something. I just recently installed the HKS Hi-Power Exhaust for my 370z and it doesn't make that much of a sound inside the car. I asked a friend of mine to drive it and let me listen to it. It sounds pretty good from the outside but there seems to be something that's making the sound less louder. A few friends of mine asked me to cut the resonator off and replace it with straight pipes instead. The resonator is located at the H pipe. Has anyone done this before for their 370? How does it sound like? I'm also planning to change my HFC in the near future. How will that sound like after getting rid of the resonator? Hope you guys can help me out. Thanks in advance

04-19-2011, 10:47 PM	#2 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	Please don't! That's the beauty of this fantastic exhaust! It sounds quiet when you're driving your Z on the highway or on the road at low rpm, but the moment you open the throttle up, the canisters are bypassed and sounds absolutely exotic. As the RPMs rise, the sound increases. I love every moment with it. It rarely has any drone at any RPM and I have done 4 hour continuous road trip with 0 headache. This exhaust is probably one of the well built and intelligently designed exhaust for 370Z. If you wanted something loud and with straight pipes, there's a Magnaflow exhaust for sale of $800. Sell this HKS and buy one of those. I do not recommend cutting this beautiful exhaust. Just my ped likes this. __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

04-21-2011, 10:04 PM	#5 (permalink)
B.A.Q Enthusiast Member Join Date: Feb 2011 Location: Phoenix,Az Posts: 302 Drives: Touring 370z Rep Power: 15	I had the same thing when I got my GReddy but wanted it to be a little loader. so got the HFCs and try them you will get an awesome sound don't do anything to that exhaust that will loss its value. HFC for a deeper sounds and good gains. or test pipes for laud and raspy sound with more gains. __________________ SOLD!! 09 370z Touring MT: GReddy Ti-C CBE - Berk HFC - Stillen 3G CAI '11 Mustang GT/CS 5.0 MT

04-22-2011, 06:53 AM	#6 (permalink)
Footloose301 A True Z Fanatic Join Date: Apr 2010 Location: Naples, FL Posts: 2,659 Drives: 40th Rep Power: 22	Dont you dare ruin that exhaust lol! I just finished up bolting on some GTM Resonated Test Pipes and it's quite a bit louder, deeper, and more powerful!!!! This hiss of our VQ's might get to be annoying but I'm happy now. __________________ 2010 40th Anniversary 370Z

04-04-2012, 10:05 AM	#9 (permalink)
GTLAW Enthusiast Member Join Date: Jun 2010 Location: Columbia MD Posts: 373 Drives: Black ??? Rep Power: 15	How do you guys feel about Fast Intentions? better then HKS? also custom made to your liking? __________________ 2013 6MT IPL GrSh\|V-Leds\|OSRAM \| SWIFT \| H&R \| CUSCO \| HKS \| 3M \|

04-20-2011, 01:45 AM	#3 (permalink)
KillerBee370 A True Z Fanatic Join Date: Mar 2009 Location: So Cal baby! Age: 52 Posts: 5,964 Drives: with passion Rep Power: 322	You bought an exhaust just to have it sound loud in the car?? You could've saved money and just cranked up the stereo.

04-21-2011, 09:56 PM	#4 (permalink)
dark_nismo Base Member Join Date: Jan 2011 Location: L_A Posts: 64 Drives: 2009 370z Nismo Blk Rep Power: 15	I would 'NOT' mess with a well made exhaust. Just like others have stated, install H.F.C's. I did. HKS W/ F.I H.F.C'S, No Light. Very satisfied.

04-23-2011, 01:12 PM	#7 (permalink)
haddy98 Base Member Join Date: Apr 2011 Location: Brunei Posts: 25 Drives: 09 Nissan 370z M6 Rep Power: 15	Thanks guys. I'm planning to get my test pipes by the end of the month. I'm sure from the comments you gave, it will sound awesome!

04-23-2011, 01:43 PM	#8 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 74	oh no...

04-04-2012, 07:42 PM	#11 (permalink)
Nikkolai Base Member Join Date: Jun 2010 Location: DFW Posts: 238 Drives: Boss 302, Frontier Rep Power: 15	Holy jeebus, please take everyone's advice and not ruin a quality part. Still not satisfied? Sell it and I bet you'll still have enough for a different catback.

04-04-2012, 11:27 PM	#12 (permalink)
David Parra Guest Posts: n/a	Got hks with some test pipes believe me its loud enough

04-06-2012, 06:41 PM	#13 (permalink)
Urbanracer Enthusiast Member Join Date: Oct 2009 Location: The mid-west, USA Posts: 266 Drives: God's Chariot Rep Power: 16	I have the HKS with Berk HFC's, its plenty loud. Mine sounds about the same as the link below although this guy has TP's. I'm very happy with the HKS and glad that I went with it. 370z HKS Hi Power Exhaust light launch - YouTube __________________ 09 Nismo - HKS \| Berk \| HPS \| K&N \| Zspeed 09 Maxima \| 09 CBR 1000RR \| 02 CBR F4i Last edited by Urbanracer; 04-06-2012 at 06:44 PM.

03-21-2016, 08:45 PM	#14 (permalink)
jameeljoker Base Member Join Date: Apr 2013 Location: West Palm Beach Posts: 220 Drives: 370z pearl white Rep Power: 13	Reviving this from the dead but has anyone done it? I have the same setup with berk HFC and the tone is nice just not loud enough. At this point with the HKS system selling so cheap would it be worth cutting out the resonators? Can anyone who has done it chime in

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Finally Got my exhaust! HKS Hi-Power Ti Exhaust (many Pics, Video inside AK370Z)	AK370Z	Intake/Exhaust	102	05-11-2013 01:32 PM
Top Speed Exhaust (Resonator) vs. Invidia Gemini	TBSS2008	Intake/Exhaust	9	04-17-2011 09:12 PM
WTT: FI exhaust with 18" Resonator	docaam	Parts for sale (Private Classifieds)	26	11-04-2010 02:49 PM
Cutting Nismo S-Tune springs?	tjlazer	Brakes & Suspension	28	11-04-2010 01:40 PM
FS: HKS Hi-Power Exhaust	MUST	Parts for sale (Private Classifieds)	41	11-02-2010 10:13 PM