Quiet Stacks? - Competition Diesel.Com

*crzycowboy* · 11-13-2006, 07:43 AM

Ok, for 2007 Grand Rock is looking at offering our QP muffler inserts for the stacks in our stack kits. These mufflers have done very well with the Class 7 and 8 trucks, with keeping noise levels down, helping with fuel milaged, and also some with performance. Now the question is, how many of you would use these inserts? They would definatly quite the exhaust, which many wifes would like, but when you get on them really sound throaty and mean. So we are looking for some feed back, what do you all think?

RacinDuallie · 11-13-2006, 07:54 AM

How much lower are the exhaust decibles??

*crzycowboy* · 11-13-2006, 10:46 AM

Not sure of the exact decible, but I do know it is lower. At the next dyno day, I'm hoping to test it out.....

SAK · 11-13-2006, 10:47 AM

I would use them, thats what keeping from running stacks right now.

*crzycowboy* · 11-13-2006, 10:57 AM

Yeah, I'm getting that alot.....looks like we will be doing this then, expecially if it gets more customers.

joefarmer · 11-13-2006, 01:56 PM

I'm interested. The single 5" flat cut is enough to drive anyone nuts. I was thinking of using one of these up near the top of the stack:

brandon.

*crzycowboy* · 11-13-2006, 01:58 PM

A funnel?

sorry I have never seen one of those! Where did you find that?

nummit · 11-13-2006, 02:16 PM

Quote:

Originally Posted by crzycowboy

A funnel?

sorry I have never seen one of those! Where did you find that?

Pampered Chef?

joefarmer · 11-13-2006, 03:01 PM

(It's a picture link...)

brandon.

wtfd6 · 11-13-2006, 06:45 PM

I have been thinking of looking into a pair of them myself.

Mark

tmacie · 12-15-2006, 01:51 PM

Any chance you could record a sound clip? i don't mind my open 5" miters buuuut I'm guessing someone around town will get sick of them at somepoint and start complaining. I also am picky about how my truck sounds (who isnt), so I'd like to hear them before buying as set.

Thanks,
Travis

*crzycowboy* · 12-15-2006, 01:55 PM

I'll get a sound clip as soon as I can, I'm hoping when I do a dyno day in the spring o get a chance then.

gstanfield · 12-15-2006, 01:56 PM

The noise is the only reason I don't already have stacks, so if you can get me some stacks that will let me go on road trips without going insane at the same time I am in big time!!

George

P.S. 5" Miter cuts are what I'm wanting if it matters.

*crzycowboy* · 12-15-2006, 02:06 PM

Thats the exact market we're looking at. The ones that one the stacks, but want them quieter than normal.

tmacie · 12-15-2006, 02:13 PM

Quote:

Originally Posted by crzycowboy

I'll get a sound clip as soon as I can, I'm hoping when I do a dyno day in the spring o get a chance then.

if you wanna send me a set for testing I'll get you all the quality sound clips you want ;-) lol.

Thanks for the info.

Travis

tmacie · 12-15-2006, 02:15 PM

Quote:

Originally Posted by gstanfield

The noise is the only reason I don't already have stacks, so if you can get me some stacks that will let me go on road trips without going insane at the same time I am in big time!!

George

P.S. 5" Miter cuts are what I'm wanting if it matters.

If you ride around with the windows up and the A/C on, its not too bad.....buuuuut all bets are off when the windows are down.....forget opening the slider....

Travis

DART505 · 12-15-2006, 07:33 PM

I like the 18" muffler style like I have seen.They start at the pipe comming out the bed & then having the last part a stack.Tomac page 70 of new Diesel power I notised uses one like it.

gstanfield · 12-15-2006, 08:09 PM

I don't care how loud it is outside, I just don't want the drone in the cab. I will say the only trucks I've driven with stacks were during my year of truck driving, so never in a pickup, it might not be as bad as I imagine it to be.

BTW, will these kits be something that will retrofit if I get stacks now and want to quiet them down later?

George

*crzycowboy* · 12-18-2006, 06:22 AM

Quote:

Originally Posted by gstanfield

I don't care how loud it is outside, I just don't want the drone in the cab. I will say the only trucks I've driven with stacks were during my year of truck driving, so never in a pickup, it might not be as bad as I imagine it to be.

BTW, will these kits be something that will retrofit if I get stacks now and want to quiet them down later?

George

Yes, you can run the stacks without the mufflers, and install them if it gets to be to loud, or if you experiance drone. HOWEVER with the QP-mufflers, you have to drill mounting holes in the stacks. So if you pull the mufflers back out, you'll have those two holes to worry about.

Dazed&Confused · 12-21-2006, 06:30 PM

I'm interested in these. What kind of prices are we talking here? Mine is very loud inside with the sleeper.

Andy

11-13-2006, 07:43 AM	#1
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	Quiet Stacks? Ok, for 2007 Grand Rock is looking at offering our QP muffler inserts for the stacks in our stack kits. These mufflers have done very well with the Class 7 and 8 trucks, with keeping noise levels down, helping with fuel milaged, and also some with performance. Now the question is, how many of you would use these inserts? They would definatly quite the exhaust, which many wifes would like, but when you get on them really sound throaty and mean. So we are looking for some feed back, what do you all think? __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

11-13-2006, 07:54 AM	#2
RacinDuallie Name: RacinDuallie Title: Black Sheep Racing Status: Not Here Join Date: Apr 2006 Location: Supporting Northeast Diesel Racing Member`s Gallery Posts: 17,369	How much lower are the exhaust decibles?? __________________

11-13-2006, 10:46 AM	#3
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	Not sure of the exact decible, but I do know it is lower. At the next dyno day, I'm hoping to test it out..... __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

11-13-2006, 10:57 AM	#5
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	Yeah, I'm getting that alot.....looks like we will be doing this then, expecially if it gets more customers. __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

11-13-2006, 01:56 PM	#6
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	I'm interested. The single 5" flat cut is enough to drive anyone nuts. I was thinking of using one of these up near the top of the stack: brandon. __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

11-13-2006, 10:47 AM	#4
SAK Name: SAK Title: I'm going fast mama. Status: Not Here Join Date: May 2006 Location: McAllen, Texas Member`s Gallery Posts: 428	I would use them, thats what keeping from running stacks right now.

11-13-2006, 01:58 PM	#7
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	A funnel? sorry I have never seen one of those! Where did you find that? __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

11-13-2006, 03:01 PM	#9
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	(It's a picture link...) brandon. __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

11-13-2006, 06:45 PM	#10
wtfd6 Name: wtfd6 Title: Diesel Enthusiast Status: Not Here Join Date: Sep 2006 Location: nw ohio Member`s Gallery Posts: 147	I have been thinking of looking into a pair of them myself. Mark __________________ 2000 Dodge Ram3500. Autometer gauges, Airdog150, Edge Juice with attitude. s300g, CDP100's, Coaltrain stage 2 trans, Amsoil dual remote bypass. Thanks to Coaltrain Diesel Performance! 419-392-1678

12-15-2006, 01:51 PM	#11
tmacie Name: tmacie Title: Geen but Sooty Status: Not Here Join Date: Oct 2006 Location: VT Member`s Gallery Posts: 403	Any chance you could record a sound clip? i don't mind my open 5" miters buuuut I'm guessing someone around town will get sick of them at somepoint and start complaining. I also am picky about how my truck sounds (who isnt), so I'd like to hear them before buying as set. Thanks, Travis __________________ 2005 2500 quad cab, stock but not for long. SOLD - 1994 Ram 2500 CTD Reg cab, auto, 200k mi., EGT, trans and boost spying tools, 5" mitre cut stacks, Mystery switch, 100 plate a hair back from FF, 16.5 deg. timing, BHAF 3kgsk!!.

12-15-2006, 01:55 PM	#12
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	I'll get a sound clip as soon as I can, I'm hoping when I do a dyno day in the spring o get a chance then. __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

12-15-2006, 01:56 PM	#13
gstanfield Name: gstanfield Title: Are we there yet? Status: Not Here Join Date: Jun 2006 Location: Casper, WY Member`s Gallery Posts: 777	The noise is the only reason I don't already have stacks, so if you can get me some stacks that will let me go on road trips without going insane at the same time I am in big time!! George P.S. 5" Miter cuts are what I'm wanting if it matters. __________________ 1997 2500 SLT 4x4 #100 fuel plate, 16.5degrees timing, 3k GSK, Amsoil homemmade intake, Dodgezilla turbo, KDP killed, Dunrite converter & VB, 285/75R16's and autometer gauges.

12-15-2006, 02:06 PM	#14
crzycowboy Name: crzycowboy Title: Comp Diesel Sponsor Status: Not Here Join Date: Apr 2006 Location: Painesville, Ohio Member`s Gallery Posts: 4,182	Thats the exact market we're looking at. The ones that one the stacks, but want them quieter than normal. __________________ Joshua Stewart / Marketing Manager & Sales Email: joshuas@grandrock.com / Phone: 1-800-321-3674 http://www.grandrock.com

12-15-2006, 07:33 PM	#17
DART505 Name: DART505 Title: WFO ALL THE TIME Status: Not Here Join Date: Jun 2006 Location: Sportsmans Paradise,Louisiana Member`s Gallery Posts: 1,198	I like the 18" muffler style like I have seen.They start at the pipe comming out the bed & then having the last part a stack.Tomac page 70 of new Diesel power I notised uses one like it. __________________ 05 RAM QC 4x4 Bombed 16 Charger "Black Cat"

12-15-2006, 08:09 PM	#18
gstanfield Name: gstanfield Title: Are we there yet? Status: Not Here Join Date: Jun 2006 Location: Casper, WY Member`s Gallery Posts: 777	I don't care how loud it is outside, I just don't want the drone in the cab. I will say the only trucks I've driven with stacks were during my year of truck driving, so never in a pickup, it might not be as bad as I imagine it to be. BTW, will these kits be something that will retrofit if I get stacks now and want to quiet them down later? George __________________ 1997 2500 SLT 4x4 #100 fuel plate, 16.5degrees timing, 3k GSK, Amsoil homemmade intake, Dodgezilla turbo, KDP killed, Dunrite converter & VB, 285/75R16's and autometer gauges.

12-21-2006, 06:30 PM	#20
Dazed&Confused Name: Dazed&Confused Title: Surfing my own world Status: Not Here Join Date: Jun 2006 Location: Morning View Kentucky Member`s Gallery Posts: 2,533	I'm interested in these. What kind of prices are we talking here? Mine is very loud inside with the sleeper. Andy __________________ Big Andy 1983/93 Dodge short bed Cummins toy 2001 Excursion Fummins project. 2004 CTS-V