• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Cabin drone: Glasspack vs. Resonator

Bedwards

Bedwards

New member
I am running the SLP cat-back exhaust, and I'm getting very annoyed with the cabin drone between 1800-2500 RPM. What's the difference between a glasspack and a resonator, and which one is more effective at eliminating cabin drone? Thanks guys.
 


I had the same problem with my GMPP system, and that was with the resonator and cat installed. I personally think it's the mufflers not doing thier job, or improper muffler design. The stock units (mufflers) are much larger in diameter, or, properly sized to reduce the drone. I loved the sound of the GMPP system, it was just that darn drone at 1800-2300 that drove me crazy, I endded up reinstalling the factory system with the exception of thier resonator (left it in place) and the drone is now non-existant, so I'm thinking it's all in the mufferls.

Dean
 
both will eliminate drone, however, they are different in their application.

glasspack: does its job to 'smooth' out the exhaust note, but doesn't really provide any sound dampening.

resonator: used to make the exhaust quiet and helps keep it from being raspy.
 
Well, when you want flow you get noise. It's unfortunate but true. I vote going for a resonator.
 
Not really...my car flows great and its quiet until WOT.

I have Catless Pacesetters, 3" Custom piping from the catback flange back with Flowmaster 40's and a stock GM Resonator. No drone or rasp here.
 
bluegtp91 said:
Not really...my car flows great and its quiet until WOT.

I have Catless Pacesetters, 3" Custom piping from the catback flange back with Flowmaster 40's and a stock GM Resonator. No drone or rasp here.
Click to expand...

I don't think the OP's exhaust has no resonator. Having the stock resonator in place definitely helps. You did it the way that I would've. What piping did you use?
 


Bio248 said:
both will eliminate drone, however, they are different in their application.

glasspack: does its job to 'smooth' out the exhaust note, but doesn't really provide any sound dampening.

resonator: used to make the exhaust quiet and helps keep it from being raspy.
Click to expand...

Thank you, Bio. Which one would YOU choose? And what's a good brand to buy?
 
i bought a glasspack to put on my car for 19.99 from summit (their brand). it was cheap and effective for what i was looking to get out of it.

be weary that resonators last A LOT longer than glasspacks do.
 
I also have the SLP cat-back along with SSAC headers, same as speed daddy, and the drone is annoying. I bought a magnaflow resonator 3in in and out for like 80 bucks. I'm getting it installed monday and i'll let you know how it sounds.
 


Lsick7 said:
I also have the SLP cat-back along with SSAC headers, same as speed daddy, and the drone is annoying. I bought a magnaflow resonator 3in in and out for like 80 bucks. I'm getting it installed monday and i'll let you know how it sounds.
Click to expand...

Yes! Keep me posted!
 


You must log in or register to reply here.
Back
Top