Exhaust question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Kelso · 09-21-2009, 08:15 PM

Ok guys which catback do yall think will be louder with american racing headers on a ls3...magnaflows 3 in. competion series or the 3 in. flowmaster 409S american thunder system? I know the competion series is a muffler delete but it also has a resonated x pipe while the flowmaster doesnt have a resonated x pipe it has mufflers. Just trying to decide on what to do.

tommyn2 · 09-21-2009, 08:17 PM

Well if it helps you decide I put on the 3inch american thunder catback flowmaster system today!
http://www.camaro5.com/forums/showthread.php?t=43430

Kelso · 09-21-2009, 08:19 PM

Thanks man..ur post is actually what made me start thinking abt the flowmaster system theres just so many options

Churnedrock · 09-21-2009, 10:36 PM

Those exhausts are nasty dude. How's the performance?

Edit: Sorry if this is a dumb question, but does the American Thunder system include headers? Or do I buy them separate?

Kelso · 09-21-2009, 10:49 PM

buy um seperate...and any catback is less restrictive so abt 10 hp maybe...but headers now 30-50 hp!!!!!!

Melson · 09-21-2009, 11:51 PM

I went with the Magnaflows with the AR Headers....it sounds amazing........but I also have the adm CAI and tuned........

urr2slo · 09-22-2009, 01:30 AM

the flowmasters will be slightly louder but the magnaflows sound way better, substatially better build quality, much better fit and finish. the 3" competion series is a true x-pipe with there competion series mufflers. they prototyped it on my car. it's the blue one on there website. since then i've added the dynatech supermaxx headers and high flow cats, magnacharger tvs 2300, roto-fab cai and a custom tune. it really made a huge difference in the sound when i put the long tubes on. take a close look at dynatech if you havent purchased your long tubes. they have been in business a long time and have great customer support. trust me it's a winning combo.

latinoslife · 09-22-2009, 01:33 AM

magnaflows! way better quality!

DarricSS · 09-22-2009, 10:00 AM

Based off appearance alone, which one “looks” faster… IMO I know which one sounds better and that would be Magnaflow…

Flowmaster:

Magnaflow Street series:

Magnaflow competition series:

09-21-2009, 08:15 PM	#1
Kelso Drives: 99 camaro Join Date: Sep 2009 Location: Tivoli, Tx Posts: 223	Exhaust question Ok guys which catback do yall think will be louder with american racing headers on a ls3...magnaflows 3 in. competion series or the 3 in. flowmaster 409S american thunder system? I know the competion series is a muffler delete but it also has a resonated x pipe while the flowmaster doesnt have a resonated x pipe it has mufflers. Just trying to decide on what to do. __________________ Soon to own: 1SS CGM M6

09-21-2009, 08:19 PM	#3
Kelso Drives: 99 camaro Join Date: Sep 2009 Location: Tivoli, Tx Posts: 223	Thanks man..ur post is actually what made me start thinking abt the flowmaster system theres just so many options __________________ Soon to own: 1SS CGM M6

09-21-2009, 10:49 PM	#5
Kelso Drives: 99 camaro Join Date: Sep 2009 Location: Tivoli, Tx Posts: 223	buy um seperate...and any catback is less restrictive so abt 10 hp maybe...but headers now 30-50 hp!!!!!! __________________ Soon to own: 1SS CGM M6

09-21-2009, 11:51 PM	#6
Melson Drives: Wild Cherry Join Date: Nov 2008 Location: Keller, Texas Posts: 430	I went with the Magnaflows with the AR Headers....it sounds amazing........but I also have the adm CAI and tuned........ __________________ 2010 RJT 2SS/RS L99 CAMARO ARH 1 7/8" LT HEADERS W/ HF CATS MAGNAFLOW 3" COMP EXHAUST ADM PERFORMANCE CAI ADM PERFORMANCE CUSTOM TUNE ADM PERFORMANCE PORTED THROTTLE BODY ADM PERFORMANCE TRANS COOLER 3.45 GEARS BMR TRAILING ARMS

09-22-2009, 01:33 AM	#8
latinoslife Drives: silver ice 2010 camaro 2lt RS Join Date: Jul 2009 Location: dyer, indiana Posts: 136	magnaflows! way better quality! __________________ [IMG][CENTER][/IMG]

09-21-2009, 08:17 PM	#2
tommyn2 Drives: 2010 2SS RS SIM Join Date: Jul 2009 Location: North Austin Posts: 107	Well if it helps you decide I put on the 3inch american thunder catback flowmaster system today! http://www.camaro5.com/forums/showthread.php?t=43430

09-21-2009, 10:36 PM	#4
Churnedrock Drives: BMW X3 Join Date: Sep 2009 Location: Western Springs, IL Posts: 29	Those exhausts are nasty dude. How's the performance? Edit: Sorry if this is a dumb question, but does the American Thunder system include headers? Or do I buy them separate?

09-22-2009, 01:30 AM	#7
urr2slo Drives: 2010 2ss ss/rs abm, 2016 2ss/rs hbm Join Date: Feb 2009 Location: N. Phx, Az Posts: 1,332	the flowmasters will be slightly louder but the magnaflows sound way better, substatially better build quality, much better fit and finish. the 3" competion series is a true x-pipe with there competion series mufflers. they prototyped it on my car. it's the blue one on there website. since then i've added the dynatech supermaxx headers and high flow cats, magnacharger tvs 2300, roto-fab cai and a custom tune. it really made a huge difference in the sound when i put the long tubes on. take a close look at dynatech if you havent purchased your long tubes. they have been in business a long time and have great customer support. trust me it's a winning combo.

09-22-2009, 10:00 AM	#9
DarricSS Drives: '10 Camaro SS Join Date: Apr 2009 Location: Gilbert, Arizona Posts: 1,047	Based off appearance alone, which one “looks” faster… IMO I know which one sounds better and that would be Magnaflow… Flowmaster: Magnaflow Street series: Magnaflow competition series: __________________ 2010, SIM, 2SS/RS, LS3, CGM Stripes Last edited by DarricSS; 09-22-2009 at 02:06 PM.

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