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  #1  
Old Tue, January 6th, 2009, 04:02 PM
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Dixie Design Dixie Design is offline
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Default Magnaflow Exhaust

Trying to finish up my exhaust modifications tomorrow or Thurs, figured I'd post a video of the "before" I get out the saw and welder, lol.

What you'll hear here is an all Magnaflow setup:

High Flow Cats, removed y-pipe and replaced with an x-pipe for true duals, two 14" oval Magnaflow single chambered mufflers run to a pair of 3.5"x18" rolled edge tips.

Tomorrow I'm going to cut out the high flow cats just to see how it sounds and performs for a week or so, then depending on what I decide I'll either weld in my "replacement" pipes or remove the pre-cats and put the high flows back in so I only have 2 cats, why Ford decided to put 4 on these beasts I don't know. I'm sure there's a logical explanation.

I'll update with new exterior and in-cab clips after tomorrow/thursday.

http://www.youtube.com/watch?v=GRQC9jsI2Ao
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Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's
Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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Old Tue, January 6th, 2009, 11:09 PM
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Man, does that sound nice or what? Good job on that! It's got a nice note without being loud and obnoxious.

No doubt about it, Magnaflow does make a nice setup.
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Old Wed, January 7th, 2009, 04:50 PM
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Cut out my rear cats today, I'd SWEAR my truck's quieter now. What gives!? I'll post vid clips tonight!
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Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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Old Wed, January 7th, 2009, 10:13 PM
jfuller5 jfuller5 is offline
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Default Which Exhaust ??

Hey Bill, What exhaust do you reccomend for 08 F150 supercrew 5.4 for daily driver and light towing? Looking for HP and MPG but still fairly quiet. Going to get a Gryphon with your Custom 87 performance tune but think I should get exhaust first, no CAI planned. What have you seen work? Single exhaust is ok . Thanks: Jim
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Old Thu, January 8th, 2009, 09:08 AM
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Here's some new clips since I removed the rear cats yesterday afternoon

Start Up & Revs
http://www.youtube.com/watch?v=j_Wtv...eature=channel

Interior Sounds 1
http://www.youtube.com/watch?v=IysCo...eature=channel

Interior Sounds 2
http://www.youtube.com/watch?v=QDMhQ...eature=channel
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Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's
Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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Old Thu, January 8th, 2009, 09:37 AM
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Quote:
Originally Posted by jfuller5 View Post
Hey Bill, What exhaust do you reccomend for 08 F150 supercrew 5.4 for daily driver and light towing? Looking for HP and MPG but still fairly quiet. Going to get a Gryphon with your Custom 87 performance tune but think I should get exhaust first, no CAI planned. What have you seen work? Single exhaust is ok . Thanks: Jim
Corey made a great recommendation there! I know you're asking Bill, but I'll chime in too if you don't mind The first exhaust mod I made was to replace my factory muffler with a 14" SI/SO and really liked it. With your truck having only 2 cats as opposed as the 4 mine came from the factory with, you'd a bit louder than I was with the SI/SO swap. A magnaflow SI/DO would be cost effective and sound even better! I'd probably stick with a 14" or 18" certainly nothing larger if you want more sound.
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Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's
Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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Old Thu, January 8th, 2009, 10:20 AM
jfuller5 jfuller5 is offline
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Default Magnaflow SIDO

Thanks for the quick replies Corey and Dixie, sounds great but I am looking to not be too loud, what do you think. Jim
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Old Thu, January 8th, 2009, 10:33 AM
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What does removing the rear cats do to you at inspection time? I had no idea the new trucks had FOUR cats. :omg: With that much restriction, I'd bet exhaust doesn't do much for you performance wise unless you remove at least one set. GEEEZZZZ the government is killing the hot rodder....stupid government.....
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Old Thu, January 8th, 2009, 12:33 PM
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Quote:
Originally Posted by jfuller5 View Post
Thanks for the quick replies Corey and Dixie, sounds great but I am looking to not be too loud, what do you think. Jim
Can always start with a 14" SI/SO, from what you've said thus far I'd say you'd be thrilled!

As for my inspection woe, have none. Down here in South Georgia they don't only skip the "sniffer" we don't even HAVE inspections!!
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Specs: 2004 4.6L SCAB | Gryphon Programmer 87 Performance | Magnaflow True Dual Exhaust - Rear Cat Delete | S&B CAI | Summit Underdrive Pulleys | Troyer eFans (ordered) | Smittybilt Bullbar | Procomp 6" Driving Lights | UWS Toolbox | Rhino Lining | Chrome Steprails | 2.5" Leveling Kit | 265/70/R17 Goodyear Wrangler AT's
Vids: Magnaflow Startup & Revs - Interior Exhaust Sounds
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Old Thu, January 8th, 2009, 01:54 PM
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Quote:
Originally Posted by Dixie Design View Post
Down here in South Georgia they don't only skip the "sniffer" we don't even HAVE inspections!!
Well that makes it easy...I don't have it so lucky here in North Carolina. It's a fairly extensive check that includes a sniffer and hooking you up to a diagnostic computer. That's another reason I'm a little worried about having a tune in place when I get the inspection, the sniffer could be bypassed by a more efficent tune for sure, but what does that computer tell them?
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