Got rid of the dreaded exhaust drone!!!

will williams · 09-07-2009, 03:50 PM

I love the sound of my Invidia exhaust. However, I hated the drone that seamed to go along with it. After several tries nothing really helped. Now the engineer in me had to figure out a way to solve this. After a lot of thinking about what could cause the drone I tried something different, its not the exhaust, its the car. With that in mind I purchased a sound deading material call "Spectrum" by a company named "SecondSkin". I removed the exhaust and striped down the trunk. Applied severial thick coats over the entire reachable surfaces. It can be sprayed however I chose to paint it on with several paint brushes. It really works.

desmo4 · 09-07-2009, 04:59 PM

That's a clever solution to a very annoying exhaust. How high a temp can that coating stand?

Jonathan

will williams · 09-07-2009, 06:30 PM

according to the mfg. it is not designed as a heat shield. I coated the area starting just in front of the resonator. I did not coat the area near the cat.

HondamakesS2000s · 09-09-2009, 02:18 AM

doesnt the mfg give a specific heat tolerance or at least a range? if not, thats a little iffy. iffy's a word, i can use it. i would think you want the stuff to withstand at least 500 deg F just to be safe. (500 only if no where near the cat)

zpeed · 09-12-2009, 01:24 AM

Noisy Fire Ball here I come.. Have you fire extinguisher on board?

desmo4 · 09-12-2009, 02:37 AM

The only problem is that the rest of the world has to listen to that obscenely loud exhaust. And I am quite certain it's power gains are small or non existent.

Jonathan

09-07-2009, 03:50 PM	#1 (permalink)
will williams just havin' fun Join Date: Apr 2008 Location: inland empire So.Cal Posts: 228	Got rid of the dreaded exhaust drone!!! I love the sound of my Invidia exhaust. However, I hated the drone that seamed to go along with it. After several tries nothing really helped. Now the engineer in me had to figure out a way to solve this. After a lot of thinking about what could cause the drone I tried something different, its not the exhaust, its the car. With that in mind I purchased a sound deading material call "Spectrum" by a company named "SecondSkin". I removed the exhaust and striped down the trunk. Applied severial thick coats over the entire reachable surfaces. It can be sprayed however I chose to paint it on with several paint brushes. It really works.

09-07-2009, 04:59 PM	#2 (permalink)
desmo4 Senior Member Join Date: Oct 2007 Location: Modesto, CA Posts: 1,309	That's a clever solution to a very annoying exhaust. How high a temp can that coating stand? Jonathan __________________ MY 2000 Mugen Air box, Headers, Exhaust, ECU, Pressure Plate,LSD, Radiator cap NZ Dampers, Thermo SW and Thermostat. Samco intake pipe and radiator hoses, Swift sway bars, Stillen rotors w/ M-tech extreme pads. BBS JDM Forged Wheels.w/ Potensa Re=01R's Nextgear Intake manifold gasket, SPA gauges, Alpine IDA-X001,KCE-350Bt BT Adapter, Focal 165 K2P speakers, Phoenix Gold ZX475Ti, Recaro Profi SPG w/Sparco 6 pt

09-12-2009, 01:24 AM	#5 (permalink)
zpeed Member Join Date: Oct 2008 Location: Reno, NV Posts: 71	Noisy Fire Ball here I come.. Have you fire extinguisher on board? __________________ '06 NFR

09-12-2009, 02:37 AM	#6 (permalink)
desmo4 Senior Member Join Date: Oct 2007 Location: Modesto, CA Posts: 1,309	The only problem is that the rest of the world has to listen to that obscenely loud exhaust. And I am quite certain it's power gains are small or non existent. Jonathan __________________ MY 2000 Mugen Air box, Headers, Exhaust, ECU, Pressure Plate,LSD, Radiator cap NZ Dampers, Thermo SW and Thermostat. Samco intake pipe and radiator hoses, Swift sway bars, Stillen rotors w/ M-tech extreme pads. BBS JDM Forged Wheels.w/ Potensa Re=01R's Nextgear Intake manifold gasket, SPA gauges, Alpine IDA-X001,KCE-350Bt BT Adapter, Focal 165 K2P speakers, Phoenix Gold ZX475Ti, Recaro Profi SPG w/Sparco 6 pt

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09-07-2009, 06:30 PM	#3 (permalink)
will williams just havin' fun Join Date: Apr 2008 Location: inland empire So.Cal Posts: 228	according to the mfg. it is not designed as a heat shield. I coated the area starting just in front of the resonator. I did not coat the area near the cat.

09-09-2009, 02:18 AM	#4 (permalink)
HondamakesS2000s Member Join Date: Aug 2009 Location: MD (HoCo) Posts: 89	doesnt the mfg give a specific heat tolerance or at least a range? if not, thats a little iffy. iffy's a word, i can use it. i would think you want the stuff to withstand at least 500 deg F just to be safe. (500 only if no where near the cat)