Is 4.6L Superior to 5.4L
Senior Member
Joined: Jan 1999
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From: WINDSOR, ONTARIO, CANADA
HI!... All I know is FLOWMASTER mufflers eat A$$$$!!!!! Had them, will never go back to them. My truck lost H.P and TQ on the dyno with them. The LIGHTNING guys have already proved that the FLOWS cause the F-150's to lose power over the stock muffler. I know I did. Flowmaster is bought for it's distinctive sound, that's it. I gained back all the power I lost and then some with my MAGNAFLOW set-up. MAGNAFLOW for life. Plus the RUSTmasters rotted totally out on my truck in less than 2 years. The MAGGIES are about 5 years old now and still look new. And the droning the FLOWS gave on the highway was terrible. Never buy them again. 
Senior Member
Joined: Jan 1999
Posts: 7,030
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From: WINDSOR, ONTARIO, CANADA
HI!... This is what I have on my truck currently. Stainless steel JDM KOOKS L/T headers, Ceramic coated inside and out, All tubing is 2.5" stainless steel from BURN'S STAINLESS in California. All mandrel bends. All TIG welded. MAGNAFLOW stainless steel straight through mufflers, high flow cats, "X" pipe and 3.5" stainless steel tips. All hardware is S/S right down to the brackets and bolts.
Senior Member
Joined: Oct 2003
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From: Washington
Originally Posted by jbrew
Theres two ways first , inside your drivers door - bottom of the tag it will give you a letter code.
E = E40D
U = 4R70w
Count your pan bolts - if you have 20 = E4OD 14= 4R70w
E = E40D
U = 4R70w
Count your pan bolts - if you have 20 = E4OD 14= 4R70w
i got the good tranny dont i?
Senior Member
Joined: Jan 1999
Posts: 7,030
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From: WINDSOR, ONTARIO, CANADA
HI!... The E40-D is basically a 4R-100 with upgraded parts. Same thing with the 4R70-W, it's a AOD-E with beefier parts and upgraded electronics. 4R-100 is a ton stronger than the 4R70-W. You can build a 4R70-W to hold a ton of power though. My current one was built to hold 600RWH.P but it's experimental, so we'll see how it goes once the T-76 is installed.
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Joined: Oct 2003
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From: Washington
Originally Posted by Neal
HI!... The E40-D is basically a 4R-100 with upgraded parts. Same thing with the 4R70-W, it's a AOD-E with beefier parts and upgraded electronics. 4R-100 is a ton stronger than the 4R70-W. You can build a 4R70-W to hold a ton of power though. My current one was built to hold 600RWH.P but it's experimental, so we'll see how it goes once the T-76 is installed.
im talking stock tranny vs stock. btw the 70w holds up to the 5.4 better than the 40d correct?
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
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From: MI
Originally Posted by Klitch
which means very little to me, im not a tranny guy here.
im talking stock tranny vs stock. btw the 70w holds up to the 5.4 better than the 40d correct?
im talking stock tranny vs stock. btw the 70w holds up to the 5.4 better than the 40d correct?
No you got it backwards , but you lucked out , that trans will bolt up -- man, did u just get lucky
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Joined: Oct 2005
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From: MI
Like Neal said, the E4OD - basically the same as a 100 . The 100 is an upgraded E40D that was introduced in 99. The E4OD came in the 97 and 98's w/tow package along with a dual core rad and coolers.. You just learned something lol
You have a 70 = (STANDARD) VRS 100 = (HD)
You have a 70 = (STANDARD) VRS 100 = (HD)
Last edited by jbrew; Dec 20, 2006 at 04:51 PM.
Technical Article Contributor
Joined: Oct 2005
Posts: 25,641
Likes: 19
From: MI
Originally Posted by Neal
HI!... This is what I have on my truck currently. Stainless steel JDM KOOKS L/T headers, Ceramic coated inside and out, All tubing is 2.5" stainless steel from BURN'S STAINLESS in California. All mandrel bends. All TIG welded. MAGNAFLOW stainless steel straight through mufflers, high flow cats, "X" pipe and 3.5" stainless steel tips. All hardware is S/S right down to the brackets and bolts.
I want this for Christmas :santa:
perfect perfect perfect!!!!!!
Senior Member
Joined: Oct 2003
Posts: 4,920
Likes: 5
From: Washington
Originally Posted by jbrew
Like Neal said, the E4OD - basically the same as a 100 . The 100 is an upgraded E40D that was intoduced in 99.
You have a 70 = (STANDARD) VRS 100 = (HD)
You have a 70 = (STANDARD) VRS 100 = (HD)
