This board is awesome! I'm a newbie to the board and have a question. I have a '97 f150 4x4 Lariat with a 4.6 v8. I'm looking to upgrade the factory exhaust to a cat back configuration with a Delta Flow 50 muffler. I have three questions.

1. What size should the inlet be on the muffler (what size is the factory pipe)?

2. I would like to run 2.5" pipes from the outlet but noticed that the largest outlet I can get with 2.5" inlet was 2.25". Is 2.25 sufficient for my truck?

3. The cost from the local dealer including 2.5" aluminized pipe (custom), tips, and installation is $200.00 I'm supplying the muffler. Is this a good price?

Thanks in advance guys!

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Thanks.
- Jay

 

1. 2.5" stock pipe.

2. (2)x 2.25" = perfect for the stock or slightly modified 4.6. Get some nice 3" tips so it looks manly.

3. $200 sounds good. Get all the joints welded or at least tack welded to eliminate squeaks, creaks, leaks, and rattles.

The DF 50 will be quiet inside, with a subtle rumble outside - it won't rattle the neighbor's windows. There are lots of ideas and opinions on exhaust systems - just do a search on Gobson, Flowmaster, and Ravin' and you will see what I mean! Good luck.

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Howie's Effie
Amazon Green 2000 F150 XLT 5.4L 4x4 ORP Supercab Flareside
Captains Chairs, Electronic Shift, Rear Slider, Keyless Entry, Cab Steps, 3.55 L/S
Mods: Superchip, FIPK, Flowmaster Force II, Scorpion Spray in Liner, fogs + hibeams (thanks FedExPilot)

Wife's New Ride: 2001 Mustang GT Convertible!
True Blue with Tan Top and Tan Leather.

 

Thanks Howie! I am now prepared to make a decision!

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Thanks.
- Jay