Do the L99 and LS3 have Different Muffler Part Numbers? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Michael2000 · 08-30-2013, 06:28 PM

Since the L99 has AFM, I was wondering if they use different muffler part numbers on those cars, compared to the LS3 without AFM?

If they use different part numbers, do the L99 and LS3 have a different sound or loudness (excluding NPP of course)?

Michael

Nightmare2012 · 08-30-2013, 06:40 PM

only difference is the resonator.

Michael2000 · 08-30-2013, 09:22 PM

Thanks!

Michael

Avenging Orange · 08-31-2013, 04:03 PM

Actually, there is a difference.....at least in the beginning. Cant find it now, but early on someone cut the 2 mufflers and there was a difference.

GMTool · 08-31-2013, 05:20 PM

Found a couple pics. 1st pic is the L99 muffler, it has a J pipe inside. LS3 looks a little different. These pics have probably been around awhile. Don't know if the newer models have the same differences.

JDP Sales · 08-31-2013, 05:25 PM

Quote:

Originally Posted by GMTool

Found a couple pics. 1st pic is the L99 muffler, it has a J pipe inside. LS3 looks a little different. These pics have probably been around awhile. Don't know if the newer models have the same differences.

Bingo!

Best regards,

Tyler
888-308-6007

08-30-2013, 06:28 PM	#1
Michael2000 Drives: . Join Date: Jan 2013 Location: Southern California Posts: 467	Do the L99 and LS3 have Different Muffler Part Numbers? Since the L99 has AFM, I was wondering if they use different muffler part numbers on those cars, compared to the LS3 without AFM? If they use different part numbers, do the L99 and LS3 have a different sound or loudness (excluding NPP of course)? Michael

08-31-2013, 04:03 PM	#4
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	Actually, there is a difference.....at least in the beginning. Cant find it now, but early on someone cut the 2 mufflers and there was a difference. __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

08-31-2013, 05:20 PM	#5
GMTool MY SS is SOLD Drives: AGM 2012 Camaro 2SS/RS L99 Join Date: Mar 2012 Location: Southwest Illinois Posts: 1,838	Found a couple pics. 1st pic is the L99 muffler, it has a J pipe inside. LS3 looks a little different. These pics have probably been around awhile. Don't know if the newer models have the same differences. __________________ CAI, Dynatech Headers, HF Cats, JRE Tuned, Corsa Cat Back, Strut Tower Brace.

08-30-2013, 06:40 PM	#2
Nightmare2012 come find out;) Drives: stockish 2012 camaro ss Join Date: Oct 2012 Location: speed county Posts: 2,166 View My Garage	only difference is the resonator.

08-30-2013, 09:22 PM	#3
Michael2000 Drives: . Join Date: Jan 2013 Location: Southern California Posts: 467	Thanks! Michael