Removing muffler steel wool in a L99 - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

christianchevell · 04-12-2017, 09:48 AM

look at the top of the page at the clips of exhaust..with DADA

JD555 · 04-12-2017, 11:56 AM

Maybe try sticking some mechanical fingers down the pipe and try to rip it out? Some of those have large fingers that really grab. I dont know if its possible.

chris1973 · 04-12-2017, 12:57 PM

Not sure of your budget but upgrade your exhaust in stages. I did Cat back cherry bomb extremes. Loved it but after a while it wasn't loud enough and there was definitely drone at lower rpms, later I did long tube headers and high flow cats. The HP increase was awesome and the sound was insane. But the drone was worse. So I replaced the Cherry Bombs with Borla Attak. I have had this set up for a few years now and I love it. I can lower the rpms to reduce noise and there is zero drone and when I get on it its sick. I took a video with cherry bombs on, with no exhaust and then with the Borla's. I'll post it in a second.

chris1973 · 04-12-2017, 01:04 PM

With the Cherry Bombs

No muffles:

With the Borla's

I filmed all three when I was switching the mufflers. Same camera phone and same distance so its easier to compare. I think the Cherry Bombs had more base, sounded throater, almost meaner. But the drone was too much for me. With no exhaust it sound like a real race car, would love to have that option but its illegal and im sure I'd go deaf after a while. The Borla's Atak, IMO are mean as hell but when cruising I get now drone.

Serpadu · 04-13-2017, 10:08 AM

Thanks for all replies...

Quote:

Originally Posted by christianchevell

removing the steel wool would be a real PITA and stupid to boot just to try to increase sound, you would be better with a straight x or h pipe and some aftermarket mufflers for sound as many do

Quote:

Originally Posted by JD555

Maybe try sticking some mechanical fingers down the pipe and try to rip it out? Some of those have large fingers that really grab. I dont know if its possible.

Probably will be more easy than it looks, I can just cut the upper middle section where is the wool and push it... The problem with the H ou X pipe is the AFM, it will sound awfull.

Quote:

Originally Posted by Hulk

It is a bit pricey but look at Solo cat back with j-pipes. I like mine.

Quote:

Originally Posted by christianchevell

look at the top of the page at the clips of exhaust..with DADA

The main problem is that I live in Brazil, this custom exhausts aren't sold here. Importation fees are huge, the shipping is slow and expensive...

Quote:

Originally Posted by ndtguy

I just enjoy the sound of the L99 on take off and once you get up to speed, it's pretty quiet again. (Also, I have the car tuned and no longer have the AFM/DOD)

When floored above 4k rpms, it will get louder.

The biggest problem is the ****ing AFM, again, haha. I'll try to import a Range AFM disabler soon...

Quote:

Originally Posted by chris1973

I did long tube headers and high flow cats. The HP increase was awesome and the sound was insane.

Putting LT headers with the stock catback probably will sound how I want, but now I cant tune the ECU (warranty) to remove AFM and turn off the CEL.

JD555 · 04-13-2017, 01:54 PM

I thought maybe the little J tube in the stk on might help with drone.

myold88 · 04-13-2017, 02:33 PM

Quote:

Originally Posted by Hulk

It is a bit pricey but look at Solo cat back with j-pipes. I like mine.

This is the answer, or even simpler is the Solo Axle Back exhaust with the J/pipes.
It's a muffler delete exhaust but may be a bit loud for your Dad though. I bet I'm
older than him- Love mine on my L99 and NO drone at any RPM.

Serpadu · 04-17-2017, 06:55 AM

Quote:

Originally Posted by myold88

I bet I'm
older than him- Love mine on my L99 and NO drone at any RPM.

He is 81yo, haha.

04-12-2017, 09:48 AM	#15
christianchevell old school chevy rodder Drives: 2021 zl1 a-10 WildCherry Join Date: Jul 2012 Location: Oregon Posts: 5,622 View My Garage	look at the top of the page at the clips of exhaust..with DADA __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data,Red Carbon Interior, Nav, RotoFab Big Gulp , Elite x2ultra, Borla ATAK, Driveshaft shop, BMR susp, Speed covers, intercoolers, ATI , 2650 MAG, DSX lid, 103 NW, TSP Longtubes & cats, LPE, 1le mods, ,LME cover, Katech pump and chain, Trunnions, BTR stage 2, LPE boostapump, Gforce, Speed eng , Granetteli, etc etc

04-12-2017, 12:57 PM	#17
chris1973 Drives: 2010 Camaro 2SS/RS Black on Black Join Date: Jan 2010 Location: Virginia Posts: 212 View My Garage	Not sure of your budget but upgrade your exhaust in stages. I did Cat back cherry bomb extremes. Loved it but after a while it wasn't loud enough and there was definitely drone at lower rpms, later I did long tube headers and high flow cats. The HP increase was awesome and the sound was insane. But the drone was worse. So I replaced the Cherry Bombs with Borla Attak. I have had this set up for a few years now and I love it. I can lower the rpms to reduce noise and there is zero drone and when I get on it its sick. I took a video with cherry bombs on, with no exhaust and then with the Borla's. I'll post it in a second. __________________ 2010 Camaro 2SS/RS Black on Black Performance Mods: CAI, ADM Scoop, Rotofab Washer Kit, Cat Back Borla ATK, SLP Underdrive Pulley, SCT Tune, DynaTech Long Tube Headers and High Flow Cats. Appearance Mods: Razzi Bodykit with LEDs, 3D Carbon Side Vents, Tint, Painted Rims and Calipers, See/hear my Camaro at http://youtu.be/wn0Ck-cw6WQ

04-12-2017, 11:56 AM	#16
JD555 Drives: 2014 2SS RS, 6 sp man Join Date: Feb 2016 Location: Marlton, NJ Posts: 461	Maybe try sticking some mechanical fingers down the pipe and try to rip it out? Some of those have large fingers that really grab. I dont know if its possible.

04-13-2017, 01:54 PM	#20
JD555 Drives: 2014 2SS RS, 6 sp man Join Date: Feb 2016 Location: Marlton, NJ Posts: 461	I thought maybe the little J tube in the stk on might help with drone.