How long to make J tubes if needed? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

aland12345 · 12-06-2015, 04:28 PM

OK ordered the Gibson 32001 axle back exhaust for my 2011 V6 convertible. Been reading here and listening on You tube. If I run into the dreaded drone, how long do the J tubes need to be to cancel out the drone at 2000 RPM? Debating between having them installed with exhaust or try some Dynomat in the trunk. Question 2? does Dynomat even work in the trunk if you have a vert?

Nutbutt · 12-12-2015, 09:41 AM

I have a vert and can tell you that Dynomat does work some but doesn't get rid of the drone you will probably get. I have the Solo Mach setup with J pipes and ther is no drone. I know there are people who have bought just the J-pipes from Solo. They have adjustable caps as the range of drone on these v6's is not the same from car to car.

hammdo · 12-12-2015, 09:45 AM

Solo can sell you just the j-tubes and you can adjust them -- that is what I did when I did the muffler delete -- worked well! I took them to a muffler shop, had them weld them on and I just adjusted them for the 'speed' I drove -- that way, I didn't need to 'cut' them a certain size -- I could just loosen them and adjust as needed...

Just call or PM them. They were great to work with...

-Don

aland12345 · 12-12-2015, 02:23 PM

I may have to go with the Dynomat and hope... It looks like the Solo J pipes would be trying to occupy the same space as the Gibson Mufflers. Once I get the Gibson's unpacked, and the stock suitcases removed, I can do more measurements. I didn't realize they are adjustable. Thanks...

bkscott · 12-13-2015, 02:20 AM

Dynomat will not help with drone.....The pipes do not need to be J shped, it is the length that will kill the drone.

aland12345 · 12-13-2015, 07:56 AM

Yeah it's the tuned length to cancel out the resonance. I didn't realize they where adjustable but after looking close I see the clamps for tuning.
I was just wondering the approximate length. It's just the Solo J pipes (generic term) will not fit with bigger Gibson oval mufflers. I will just have to give it a try, allot of Gibson owners report no drone. Thanks...

BigRed585Lbs · 12-14-2015, 02:33 PM

Just use the following chart and you should be good:

aland12345 · 12-15-2015, 11:04 PM

Big Red, Thank you very much. Even better than expected. Wish the Solo J tubes would fit but this is the next best thing. Allot of the Gibson fan boys report no drone, I hope to join them, but I'm now prepared if needed.

BigRed585Lbs · 12-16-2015, 07:02 AM

You are very welcome.
Make all Camaros sound better than ecoboost!!!!!

aland12345 · 12-29-2015, 08:02 PM

Well installed the Gibson's Saturday morning. Been cold here in Phoenix but with the top up there really doesn't seem to be much drone. Maybe a touch from 1800 to 2000 but any movement of the throttle and it's gone. My only complaint is for the first 20 seconds or so after a cold start it sounds raspy. After the fast idle kicks out couldn't be happier. Should be back up in the mid to upper 60's by Saturday I can take it for a cruise with the top down...

12-06-2015, 04:28 PM	#1
aland12345 Drives: 2016 Bright Yellow Camaro vert Join Date: Jul 2015 Location: Phoenix, AZ Posts: 67 View My Garage	How long to make J tubes if needed? OK ordered the Gibson 32001 axle back exhaust for my 2011 V6 convertible. Been reading here and listening on You tube. If I run into the dreaded drone, how long do the J tubes need to be to cancel out the drone at 2000 RPM? Debating between having them installed with exhaust or try some Dynomat in the trunk. Question 2? does Dynomat even work in the trunk if you have a vert? Last edited by aland12345; 12-06-2015 at 04:47 PM.

12-12-2015, 09:41 AM	#2
Nutbutt Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009 Location: Western Massachusetts Posts: 3,381 View My Garage	I have a vert and can tell you that Dynomat does work some but doesn't get rid of the drone you will probably get. I have the Solo Mach setup with J pipes and ther is no drone. I know there are people who have bought just the J-pipes from Solo. They have adjustable caps as the range of drone on these v6's is not the same from car to car. __________________ 1st IPF Supercharged 2011 2LT/RS RJT Convertible

12-12-2015, 09:45 AM	#3
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	Solo can sell you just the j-tubes and you can adjust them -- that is what I did when I did the muffler delete -- worked well! I took them to a muffler shop, had them weld them on and I just adjusted them for the 'speed' I drove -- that way, I didn't need to 'cut' them a certain size -- I could just loosen them and adjust as needed... Just call or PM them. They were great to work with... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

12-13-2015, 02:20 AM	#5
bkscott Drives: 2010 Camaro 2SS/RS Join Date: Dec 2009 Location: Grand Prairie, Texas Posts: 1,608 View My Garage	Dynomat will not help with drone.....The pipes do not need to be J shped, it is the length that will kill the drone. __________________ 94 Firebird Formula (Drowned 08/30/05) 2010 IBM 2SS/RS 6M Arrived 3/25/10. ADM CAI, Borla Type S Cat Back, VMAX Ported TB, LG Short Throw Shifter, 1LE Shocks, Hotchkis Sway Bars, Whiteline Cradle Bushing Inserts, Custom Powdercoated ZL1's ,Michelin Pilot Supersports, Stainless Power Headers, Solo J Pipes, AAC LED Sidemarkers, ZL1 Rockers, SLP Splitter, ADM Stage II Cam,ZL1 Diffuser,Vitesse Throttle Controller.

12-15-2015, 11:04 PM	#8
aland12345 Drives: 2016 Bright Yellow Camaro vert Join Date: Jul 2015 Location: Phoenix, AZ Posts: 67 View My Garage	Just what the Dr. ordered... Big Red, Thank you very much. Even better than expected. Wish the Solo J tubes would fit but this is the next best thing. Allot of the Gibson fan boys report no drone, I hope to join them, but I'm now prepared if needed.

12-12-2015, 02:23 PM	#4
aland12345 Drives: 2016 Bright Yellow Camaro vert Join Date: Jul 2015 Location: Phoenix, AZ Posts: 67 View My Garage	I may have to go with the Dynomat and hope... It looks like the Solo J pipes would be trying to occupy the same space as the Gibson Mufflers. Once I get the Gibson's unpacked, and the stock suitcases removed, I can do more measurements. I didn't realize they are adjustable. Thanks...

12-13-2015, 07:56 AM	#6
aland12345 Drives: 2016 Bright Yellow Camaro vert Join Date: Jul 2015 Location: Phoenix, AZ Posts: 67 View My Garage	Yeah it's the tuned length to cancel out the resonance. I didn't realize they where adjustable but after looking close I see the clamps for tuning. I was just wondering the approximate length. It's just the Solo J pipes (generic term) will not fit with bigger Gibson oval mufflers. I will just have to give it a try, allot of Gibson owners report no drone. Thanks...

12-14-2015, 02:33 PM	#7
BigRed585Lbs Drives: Sierra and Tahoe Join Date: Jul 2010 Location: By Marion, MS Posts: 1,324 View My Garage	Just use the following chart and you should be good:

12-16-2015, 07:02 AM	#9
BigRed585Lbs Drives: Sierra and Tahoe Join Date: Jul 2010 Location: By Marion, MS Posts: 1,324 View My Garage	You are very welcome. Make all Camaros sound better than ecoboost!!!!!

12-29-2015, 08:02 PM	#10
aland12345 Drives: 2016 Bright Yellow Camaro vert Join Date: Jul 2015 Location: Phoenix, AZ Posts: 67 View My Garage	Gibsons installed no drone... Well installed the Gibson's Saturday morning. Been cold here in Phoenix but with the top up there really doesn't seem to be much drone. Maybe a touch from 1800 to 2000 but any movement of the throttle and it's gone. My only complaint is for the first 20 seconds or so after a cold start it sounds raspy. After the fast idle kicks out couldn't be happier. Should be back up in the mid to upper 60's by Saturday I can take it for a cruise with the top down...