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Author Topic: installing 40 series FM exhaust questions  (Read 617 times)

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Offline wthhunter

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installing 40 series FM exhaust questions
« on: November 09, 2011, 11:09:39 PM »
its an 04 av and i just dont see where the hell this is going to fit? ive seen alot of yall with it in so i just wonder where you put it?


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Offline MonstaMonsta

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Re: installing 40 series FM exhaust questions
« Reply #1 on: November 10, 2011, 01:39:16 AM »
Finally a topic I have actual experience with and may contribute without any guessing...

I am very grateful and again  :cacrocks" thank you guys for the Flowmaster its Insane...

I'll snap some pictures of the way I had mine installed to give you a better idea, but for the moment a description is all I can offer.  The FM muffler I have is a Single in Single out.  I think they were 2.5" in and outlet diameter.. I'd have to check...  but essentially I had the OEM Muffler cut out and the FM welded in with an extension pipe from the outlet.  I cut the OEM where the two outlets from the muffler meet and become one.  The had a pipe bent and welded from the rear of the muffler to the exisiting tail pipe.  Used the stock hangers... still need to fabricate one more though...  other than that, it fits just fine  :thumbup:

I also had my cats cut out and straight pipes of the same diameter welded in.  I added Spark plug nonfoulers to the rear Oxygen sensors in order to avoid the stupid CEL, and it worked like a charm  :cheers:

Only drawback is the in cabin drone, other than that it sounds ALL AMERICAN!
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The Alexandria Avalanche

SilverStar: tail lights - chromed Amber turn signals - sidemarker lights - license plate lights - reverse lights - & - Silverstar ZXE highs and Lows "Soon".  Amber DRLs LongLife (Non Sylvy) Borgeson Steering Shaft. Russell SS Braided Brake Lines, Russell Speed Bleeders. 20" Kahuna American Racing Rims wrapped in GoodYear Wrangler 275/60/20 - 33" tires. DBA 2000x Front Rotors. DBA 2001x Rear Rotors. Monroe Sensatrac Front Shocks.  Cat "Delete".  Rear Oxygen Sensors Spaced -> "spark plug non fouler mod" NTK Oxygen Sensors.  FlowMaster 40 Delta Flow Exhaust "won here =D" Custom Piping - FloPro ST123C1 tip. 145Amp Tuff stuff 8237 Alternator.  Alcantara covered Dash and every other-lousy-piece-of-plastic-interior-trim-in-the-avalanche.  Grille Lamps 2x highs/ 2x lows.
Over 1000 RMS worth of Rockford Fosgate powered sound. Custom 2 speakers in front doors + midgate housing 2 twelves.

Working on Leather Seats, Custom Diamond cut Chrome Coated grille, Intake, Electric fan, 2nd battery, RAM air hood and intake, custom stainless steel brake tubes, Dual battery..

Offline wthhunter

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Re: installing 40 series FM exhaust questions
« Reply #2 on: November 10, 2011, 10:47:42 AM »
whats this in cabin "drone" sound like
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Offline wthhunter

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Re: installing 40 series FM exhaust questions
« Reply #3 on: November 10, 2011, 12:03:49 PM »
and the pics would be awesome
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Offline MonstaMonsta

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Re: installing 40 series FM exhaust questions
« Reply #4 on: November 10, 2011, 08:35:17 PM »
I"ll take and post pics... maybe even a video to show the drone.  It sounds like a "drone".  Kind of like a low bass note on a pair of subwoofers...  its worst is at 2000 RPM.  Its unfortunate that that is the rpm the avy likes most..  For me Im assuming the drone is worse than others who installed a FM because I have removed my catalytic converters.  So thats one less sound dampener from the engine to the muffler.  Other than that I think I'll dynamat the floor pretty soon in an effort to reduce this loud mummur that makes road trips unpleasant.
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The Alexandria Avalanche

SilverStar: tail lights - chromed Amber turn signals - sidemarker lights - license plate lights - reverse lights - & - Silverstar ZXE highs and Lows "Soon".  Amber DRLs LongLife (Non Sylvy) Borgeson Steering Shaft. Russell SS Braided Brake Lines, Russell Speed Bleeders. 20" Kahuna American Racing Rims wrapped in GoodYear Wrangler 275/60/20 - 33" tires. DBA 2000x Front Rotors. DBA 2001x Rear Rotors. Monroe Sensatrac Front Shocks.  Cat "Delete".  Rear Oxygen Sensors Spaced -> "spark plug non fouler mod" NTK Oxygen Sensors.  FlowMaster 40 Delta Flow Exhaust "won here =D" Custom Piping - FloPro ST123C1 tip. 145Amp Tuff stuff 8237 Alternator.  Alcantara covered Dash and every other-lousy-piece-of-plastic-interior-trim-in-the-avalanche.  Grille Lamps 2x highs/ 2x lows.
Over 1000 RMS worth of Rockford Fosgate powered sound. Custom 2 speakers in front doors + midgate housing 2 twelves.

Working on Leather Seats, Custom Diamond cut Chrome Coated grille, Intake, Electric fan, 2nd battery, RAM air hood and intake, custom stainless steel brake tubes, Dual battery..

Offline MonstaMonsta

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Re: installing 40 series FM exhaust questions
« Reply #5 on: November 11, 2011, 08:55:07 AM »
Sorry I was a bit busy today but... Here are some quick shots  :thumbup:
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The Alexandria Avalanche

SilverStar: tail lights - chromed Amber turn signals - sidemarker lights - license plate lights - reverse lights - & - Silverstar ZXE highs and Lows "Soon".  Amber DRLs LongLife (Non Sylvy) Borgeson Steering Shaft. Russell SS Braided Brake Lines, Russell Speed Bleeders. 20" Kahuna American Racing Rims wrapped in GoodYear Wrangler 275/60/20 - 33" tires. DBA 2000x Front Rotors. DBA 2001x Rear Rotors. Monroe Sensatrac Front Shocks.  Cat "Delete".  Rear Oxygen Sensors Spaced -> "spark plug non fouler mod" NTK Oxygen Sensors.  FlowMaster 40 Delta Flow Exhaust "won here =D" Custom Piping - FloPro ST123C1 tip. 145Amp Tuff stuff 8237 Alternator.  Alcantara covered Dash and every other-lousy-piece-of-plastic-interior-trim-in-the-avalanche.  Grille Lamps 2x highs/ 2x lows.
Over 1000 RMS worth of Rockford Fosgate powered sound. Custom 2 speakers in front doors + midgate housing 2 twelves.

Working on Leather Seats, Custom Diamond cut Chrome Coated grille, Intake, Electric fan, 2nd battery, RAM air hood and intake, custom stainless steel brake tubes, Dual battery..

Offline wthhunter

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Re: installing 40 series FM exhaust questions
« Reply #6 on: November 12, 2011, 01:10:01 AM »
the sounds really that bad oO. i mean im a 20 y.o kid so :p noise is my favorite
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Offline MonstaMonsta

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Re: installing 40 series FM exhaust questions
« Reply #7 on: November 12, 2011, 02:48:14 AM »
Im 21.  I love the noise it creates on the outside.  I think you'll love it too.  Go for it.
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The Alexandria Avalanche

SilverStar: tail lights - chromed Amber turn signals - sidemarker lights - license plate lights - reverse lights - & - Silverstar ZXE highs and Lows "Soon".  Amber DRLs LongLife (Non Sylvy) Borgeson Steering Shaft. Russell SS Braided Brake Lines, Russell Speed Bleeders. 20" Kahuna American Racing Rims wrapped in GoodYear Wrangler 275/60/20 - 33" tires. DBA 2000x Front Rotors. DBA 2001x Rear Rotors. Monroe Sensatrac Front Shocks.  Cat "Delete".  Rear Oxygen Sensors Spaced -> "spark plug non fouler mod" NTK Oxygen Sensors.  FlowMaster 40 Delta Flow Exhaust "won here =D" Custom Piping - FloPro ST123C1 tip. 145Amp Tuff stuff 8237 Alternator.  Alcantara covered Dash and every other-lousy-piece-of-plastic-interior-trim-in-the-avalanche.  Grille Lamps 2x highs/ 2x lows.
Over 1000 RMS worth of Rockford Fosgate powered sound. Custom 2 speakers in front doors + midgate housing 2 twelves.

Working on Leather Seats, Custom Diamond cut Chrome Coated grille, Intake, Electric fan, 2nd battery, RAM air hood and intake, custom stainless steel brake tubes, Dual battery..

Offline Double D

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Re: installing 40 series FM exhaust questions
« Reply #8 on: November 12, 2011, 09:29:43 PM »
Heck, I'm 44 and love the noise of my FlowMaster 40 on my 07 Avalanche.  Here are some shots from the back and how they got around the spare.  The muffler just replaced my existing muffler.
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Offline MonstaMonsta

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Re: installing 40 series FM exhaust questions
« Reply #9 on: November 12, 2011, 11:42:45 PM »
What kind of Exhaust TIps do you have on there Double D?  hey look sharp!  :thumbup:
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The Alexandria Avalanche

SilverStar: tail lights - chromed Amber turn signals - sidemarker lights - license plate lights - reverse lights - & - Silverstar ZXE highs and Lows "Soon".  Amber DRLs LongLife (Non Sylvy) Borgeson Steering Shaft. Russell SS Braided Brake Lines, Russell Speed Bleeders. 20" Kahuna American Racing Rims wrapped in GoodYear Wrangler 275/60/20 - 33" tires. DBA 2000x Front Rotors. DBA 2001x Rear Rotors. Monroe Sensatrac Front Shocks.  Cat "Delete".  Rear Oxygen Sensors Spaced -> "spark plug non fouler mod" NTK Oxygen Sensors.  FlowMaster 40 Delta Flow Exhaust "won here =D" Custom Piping - FloPro ST123C1 tip. 145Amp Tuff stuff 8237 Alternator.  Alcantara covered Dash and every other-lousy-piece-of-plastic-interior-trim-in-the-avalanche.  Grille Lamps 2x highs/ 2x lows.
Over 1000 RMS worth of Rockford Fosgate powered sound. Custom 2 speakers in front doors + midgate housing 2 twelves.

Working on Leather Seats, Custom Diamond cut Chrome Coated grille, Intake, Electric fan, 2nd battery, RAM air hood and intake, custom stainless steel brake tubes, Dual battery..

Offline Double D

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Re: installing 40 series FM exhaust questions
« Reply #10 on: November 13, 2011, 09:36:03 AM »
Quote from: MonstaMonsta on November 12, 2011, 11:42:45 PM
What kind of Exhaust TIps do you have on there Double D?  hey look sharp!  :thumbup:

Not sure of the manufacturer.  The local muffler shop provided them when they did the work.  Their stainless and about 14" long, give or take a few inches.
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Offline R3D DR4G0N

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Re: installing 40 series FM exhaust questions
« Reply #11 on: November 13, 2011, 11:23:47 AM »
Quote from: wthhunter on November 09, 2011, 11:09:39 PM
its an 04 av and i just dont see where the hell this is going to fit? ive seen alot of yall with it in so i just wonder where you put it?

i would probably just take it to a shop for them to install, thats my $.02 though, lol

Jon

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