silent exhaust

predator_machine · 10-29-2009, 09:58 PM

I have seen exhaust silencers for 4 wheelers before. Has anyone seen such a thing for a truck, or know of a muffler that is more silent than stock. I also am packing under the hood and driveline with soundproof mat. I want the predator be stealth? any suggestions?

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Elton · 10-30-2009, 12:07 AM

stock exhaust with a resonator ?

olharleyman · 10-30-2009, 12:18 AM

I believe super trap still sells the insert kits for 2 into Harley exhausts you could try that and see if it will work. I believe they are 2 1/2 inserts so you could possibly put them in your exhaust pipe, they help create back pressure for building power in the 2 into 1 who knows it may work.

Here is there chart for auto click on the part number and it will show you the silencers

http://www.supertrapp.com/find_my/results.asp

I just hit the link and found that you have to go to the top and click on the AUTO tab and it will show you the inserts.

Team420 · 10-30-2009, 05:23 AM

wow... this is new... never heard of someone tryong to make their rig more quiet than stock???

HazMat · 10-30-2009, 08:56 AM

Cool idea. Is this for sneaking into hunting spots or something? If so, i like it. Kinda like using one of the electric offroad golfcarts that are supposed to be super quiet. Keep us posted on what you find and how well it works.

MaK92-4RnR · 10-30-2009, 09:01 AM

guess i'm never taking my truck hunting? i'd wake up the whole forest with my system

Team420 · 10-30-2009, 11:07 AM

around here...You are actually better off in the truck, the wildlife is used to hearing skidders and logging equipment. You get out and start crunching leaves tho, they will know somethins up.

tc · 10-30-2009, 11:51 AM

How silent do you want it to be?

The thing is to control the expansion and cooling of the exhaust gas pulses. Headers help by providing a more constant flow (by timing the pulses so they are in series instead of on top of each other). Going to a larger tubing after the cat will allow it expand a little, then the muffler allows a little more, going to a larger tailpipe out of the muffler allows a little more. A tip like Borla makes will help some too.

At the extreme end of the scale, you can run more than one muffler in series.

A properly tuned engine with a functional cat and muffler should be plenty quiet - the tires will make more noise than the exhaust.

predator_machine · 10-30-2009, 08:17 PM

that is sort of what I am thinking, back to back mufflers, and might add a bypass valve for when I do want to raise hell.

S4amoht4 · 11-20-2009, 11:08 AM

Predator, how did this turn out? I want a quieter exhaust as well. The muffler that is on my runner now was installed by the po a few weeks before I bought it, but just a little too loud for my liking. It deffinatley needs some navy seal shiz done to it. I'm a fan of the stealth, no need to let everybody know I'm in the country.

theAuthority · 11-20-2009, 11:15 AM

quieter the better, i'm just getting old at 23 .... haha

Lumpy · 11-20-2009, 11:23 AM

Go with the stock then...the stock is not loud at all.

S4amoht4 · 11-20-2009, 11:46 AM

Quote:

Originally Posted by theAuthority

quieter the better, i'm just getting old at 23 .... haha

I hear ya! Imagine how much worse you're gonna be at 26!!

Lumpy, in that case, who's got a stock muffler they want to get rid of for a '95?!

Lumpy · 11-20-2009, 11:51 AM

I'll have one soon of a 3.0 at least I think its stock, kinda looks like what I cut out of my 22re.
Can't say when exactly. I have a ton on my honey do list first.

23, 26 just wait then. Just give it some time and You will not care about the loud exhaust.

elblako91 · 11-20-2009, 11:58 AM

Stock is quiet for me ha.

S4amoht4 · 11-20-2009, 12:03 PM

Quote:

Originally Posted by Lumpy

23, 26 just wait then. Just give it some time and You will not care about the loud exhaust.

Is that bc we will be so old we can't hear it anymore??

Gotta hate those honey do list...always interferring with play time...

Lumpy · 11-20-2009, 12:12 PM

I have certain tones I have trouble hearing so the exhaust does not bother me too much. It works good also because I can tell the lil lady that I didn't hear her she was talking in the def-tone.

I don't think she believes me though she just goes along with it.

S4amoht4 · 11-20-2009, 12:28 PM

So, the stock muffler it is. I called one of the muffler shops around here and a stock muffler would be about $160 installed. That's not too bad, but I think I would rather just get a used one.

MaK92-4RnR · 11-20-2009, 12:40 PM

http://www.youtube.com/watch?v=pGZVVRyuQN0

heres my exhaust... is it quiet enough for you?

hahah

Etype R · 11-20-2009, 01:38 PM

I prefer a quiet exhaust for wheeling, I want to hear my spotters and what my truck is doing on the trails.

10-30-2009, 12:07 AM	#2 (permalink)
Elton Contributing Member Join Date: Jul 2005 Location: Siletz,Oregon Posts: 10,657	stock exhaust with a resonator ? __________________ My Truck 98 4runner SR5 3.4L 5spd 4x4 E-Locker Mods Mom 07 Tundra d-cab limited 5.7L 4x4 auto sister 92 pickup SR5 X-cab 3.0L 5spd 4x4 Papa 89 Pickup SR5 X-cab 4x4 3.0L 5spd/98 4runner SR5 4x4 auto 3.4L R.I.P 91 4runner SR5 4x4 3.0L 5spd Totaled 5/13/06 My Wreck

10-30-2009, 12:18 AM	#3 (permalink)
olharleyman Contributing Member Join Date: Dec 2006 Location: maryland Posts: 3,291	I believe super trap still sells the insert kits for 2 into Harley exhausts you could try that and see if it will work. I believe they are 2 1/2 inserts so you could possibly put them in your exhaust pipe, they help create back pressure for building power in the 2 into 1 who knows it may work. Here is there chart for auto click on the part number and it will show you the silencers http://www.supertrapp.com/find_my/results.asp I just hit the link and found that you have to go to the top and click on the AUTO tab and it will show you the inserts. __________________ 1990 4 runner 5 Speed Pro Comp Stage II 4" Lift 6" coils rear Aussie Locker front 5.29's Front And Rear 35 x 12.5 x 15 MT's Micky Thompson Classic II Wheels Super Charged 3.4 on the way 1993 SAS 4runner 22re 5 speed 4" front 5"rear 5.29's 35 x 12.5 BFG KM'S Dick cepek DC 1's 88 stock 4runner 3.0 auto for now 1955 Harley Davidson Springer Stock 1955 Hardtail Frame 4 Speed Kick Start Only 1998 Harley Custom Dresser 107 rwhp 139 ft.lbs.trq. Last edited by olharleyman; 10-30-2009 at 12:26 AM.

10-30-2009, 08:56 AM	#5 (permalink)
HazMat Registered User Join Date: Sep 2008 Location: Mechanicsburg, PA Posts: 335	Cool idea. Is this for sneaking into hunting spots or something? If so, i like it. Kinda like using one of the electric offroad golfcarts that are supposed to be super quiet. Keep us posted on what you find and how well it works. __________________ 2004 3.4l Taco TRD SR5 Lil' bit-o-Lift, 32" General Grabbers, Softopper, 05TRD Wheels 95.5 2.7L Taco (RIP) Burned up!!

10-30-2009, 09:01 AM	#6 (permalink)
MaK92-4RnR Registered User Join Date: Mar 2008 Location: Roseville, California ( NOR CAL ) Posts: 327	guess i'm never taking my truck hunting? i'd wake up the whole forest with my system __________________ 1992 Toyota 4runner SR5 4x4 3.0 V6 5 Speed - Completely stock with 136k Miles. Modifications: Exhaust: Doug thorley headers, magnaflow hi flow cat, borla turbo muffler, 2.25 piping with a 3" tip Stereo: Pioneer Premier Deck, 2 12" Subwoofers, Brand new speakers all around, 1 450w 4 channel amp, 1 1000w 2 channel amp. CB Radio: Cobra 19 DX IV 40-Channel Compact CB Radio

10-30-2009, 11:51 AM	#8 (permalink)
tc Contributing Member Join Date: Nov 2005 Location: Longmont, CO Posts: 8,376	How silent do you want it to be? The thing is to control the expansion and cooling of the exhaust gas pulses. Headers help by providing a more constant flow (by timing the pulses so they are in series instead of on top of each other). Going to a larger tubing after the cat will allow it expand a little, then the muffler allows a little more, going to a larger tailpipe out of the muffler allows a little more. A tip like Borla makes will help some too. At the extreme end of the scale, you can run more than one muffler in series. A properly tuned engine with a functional cat and muffler should be plenty quiet - the tires will make more noise than the exhaust. __________________ Check out www.coTTORA.org to hook up with great Toyota 'wheelin' folks! Current - 93 4Runner: 3VZ 33"x10.50" no lift ARB F/R 96 Impala SS: My own personal cop car Previous - 89 2WD Pickup 22R, Fabtech "Ivan Dan" lift, 31x10.50, IASCA World Finals 4th Place Stop with the mods and get on the trail! Pix at www.4wheelingoh.shutterfly.com/action

10-30-2009, 08:17 PM	#9 (permalink)
predator_machine Registered User Join Date: Oct 2009 Posts: 38	that is sort of what I am thinking, back to back mufflers, and might add a bypass valve for when I do want to raise hell.

11-20-2009, 11:08 AM	#10 (permalink)
S4amoht4 Registered User Join Date: Mar 2006 Location: Alabama Posts: 17	Predator, how did this turn out? I want a quieter exhaust as well. The muffler that is on my runner now was installed by the po a few weeks before I bought it, but just a little too loud for my liking. It deffinatley needs some navy seal shiz done to it. I'm a fan of the stealth, no need to let everybody know I'm in the country. __________________ '95 2Walker, 31" BFG's (soon to be Procomps if they ever get off back oder), mostly stock.

11-20-2009, 11:15 AM	#11 (permalink)
theAuthority Registered User Join Date: Sep 2009 Location: Lynnwood, WA Posts: 1,624	quieter the better, i'm just getting old at 23 .... haha __________________ Proud sponsor of the re-poster thread. Where there is Substance. http://www.yotatech.com/f5/you-re-poster-193103/

11-20-2009, 11:58 AM	#15 (permalink)
elblako91 Registered User Join Date: Jan 2009 Posts: 300	Stock is quiet for me ha. __________________ '92 Yota 5 Speed V6 4X4 5,000 ORIGINAL MILES New 32X11.50 all terrains and some Bright lights. :)

11-20-2009, 12:28 PM	#18 (permalink)
S4amoht4 Registered User Join Date: Mar 2006 Location: Alabama Posts: 17	So, the stock muffler it is. I called one of the muffler shops around here and a stock muffler would be about $160 installed. That's not too bad, but I think I would rather just get a used one. __________________ '95 2Walker, 31" BFG's (soon to be Procomps if they ever get off back oder), mostly stock.

11-20-2009, 01:38 PM	#20 (permalink)
Etype R Registered User Join Date: Oct 2005 Posts: 294	I prefer a quiet exhaust for wheeling, I want to hear my spotters and what my truck is doing on the trails. __________________ 1985 Toyota 4Runner - Full SR5 package - 4 inch lift - 35" tires

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