My FM70 Mod
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Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
Dynatech 3" Powercat - $150
Flowmaster Force 2 Cat-back (#17229) w/ FM70 $203 Shipped
FM70 Mod $0
Magnaflow 4" x 12" tip $45
Of course none of these prices include installation and etc. I have a K&N FIPK on my truck also with the zoodad mod. Also running an SCT Xcal 2 w a custom tune and a FT Valve body for the tranny. All my mods cost about as much as the Banks kit alone. I bought stuff as I went instead of sinking the big bucks into the Banks system all at once. IMO you get more by putting together aftermarket parts rather than just buying a kit. Of course buying a pre engineered kit is easier.
Mountain Pass
Joined: May 2004
Posts: 188
Likes: 2
From: Ada, Michigan
Just ordered an '08 6.8 F250 Lariat yesterday. They had a 2005 that they let me drive so I could get an idea of what the V10 was all about. It was so muffled it was almost a let down. Nice to hear how you have yours set up. I might explore a new exhaust to get some rumble out of it. Nothing too loud, but at least some noise when WFO.
Thanks for posting the audio file.
Thanks for posting the audio file.
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Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
From the factory they are super quiet. It seems like the 05' up exhausts have more pop to them than the 99'-04' models. Overal the 05'up exhaust is much better than previous years, but regardless the huge stock mufflers are restrictive.
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Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
There is zero drone at any rpm and interior sound was only increased slightly with the mod. I noticed the mid to top end power increaased some, especially on the highway. I think this was due to replacing the section of pipe with the bad bends to the mandrel bent piping. The old pipe was collapsed pretty good and was a restriction point. I highly doubt you'll notice any increase in performance with the muffler mod alone.
Junior User
Joined: Apr 2008
Posts: 78
Likes: 0
From: New York
Finally got my video uploaded. The camera was a little close.(6'-7' away) For those who don't know truck has Throley headers/ypipe, 3" Dynatech cat, FM Force 2 Cat-back w/FM70 with above mod and a 4" x 12" tip.
Video of 6.8l Exhaust - Photobucket - Video and Image Hosting
Video of 6.8l Exhaust - Photobucket - Video and Image Hosting
Cross-Country
Joined: Sep 2006
Posts: 62
Likes: 8
I have the FM70 and bigger Y Pipe and the rest stock. Mine sounds like crap compared to yours. The headers must be the trick.
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Thread Starter
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Hotshot
Joined: Mar 2007
Posts: 10,101
Likes: 40
From: Pa
I did all the work myself. My local muffler shop is somewhat inexpensive, but does crude work with bad bends.
Junior User
Joined: May 2008
Posts: 55
Likes: 0
From: Alamogordo
Dude that sounds damn good, I spent $300 on my catback with dual outs wit 4" tips and it still sounds stock. I'm gettin a 50 series FM I think next wednesday and I hope it sounds half as good..... anyone runnin or heard the V10 with no cat or hallowed out? Just a thought but again good install man
Nick
Nick
Elder User
Joined: May 2007
Posts: 699
Likes: 1
A user named Teammud made a web sit with a bunch of exhaust sound clips hears a link.
Sound & Video Clips
Sound & Video Clips
Thanks for the link , helped lots
Elder User
Joined: Jan 2004
Posts: 685
Likes: 0
From: USA
I got a 2000 and it was pretty loud stock. Now I got a Flowmaster 3inch 40 series. Everybody knows when I'am coming down the street or coming up a dune. That V-10 has a very different sound. I was thinking of maybe the 2.5inch dual out let 40 or the Flowmaster Super 44, Flowmaster Super 40, the race muffler 30 series!
I dont want my truck to look or sound like all the rest.
I dont want my truck to look or sound like all the rest.