wondering what to expect out of my new exhaust setup in the making? drop ? increase? most likey not! 97 4.6 long tube pacesetters to 2 maggy high flows 2.5in tubing to cherry bomb single chamber extreme mufflers and exiting in front of rear wheels? torq increase numbers? hp?

 

Anywhere from 9 - 18 mpg. Usually, I can't keep my foot out of it - so it varies .. - ALLOT!

I haven't noticed a difference.

 

mine havnt been on long enogh for me to tell....i went on a 280 mile trip and my mileage was about 13.5-14MPG *without an EGR* the most ive ever gotten out of my truck was 16MPG and i was doign 55MPH alot. and also depends on how much you wanna hear the headers

 

right now, i'm getting about 18.5 without headers and highflow cats. i'm thinking, if you have your computer programed right, it will get better. i'm also thinking about buying the pasesetters headers long tubes, with high flow cats. i have a 26 gal tank and getting around 405 to 415 miles per tank. by the way, i have a Emco SI/DO exhaust.

 

how do u get 18MPG? i wanna get that!! the most ive ever gotten out of a tank was 325. i also have the 26 gal

 

all of my driving is interstate. not much intown. running between 75 and 80mph. its all about getting your computer just right. i found out by getting the tranny shift points shifting just right. it took some time, but i'm getting around 405 to 415 on a tank.

 

just got them installed i dont know about them on the 5.4 but man thats a fursating job on the 4.6 motor needs to be lifted 2in on the 97 dont waste your time lift it and the tranny cross member needs to removed not hard though but the engine is a pain and reinstall that start top bolt wow that is tight if you buy them just understand its do able but it aint easy cutting of the heat sheilds is also needed for o2 sensor clearance

 

didnt have to lift my 97 4.6L didnt see a reason too...yeah it woulda been nice but i got it done without takin out the starter or lifting the engine.

 

which engine you got i have the 4.6 romeo 11 bolt covers couldnt find a way to do it which out lifting it but lucky you and those powermaster starters the gear reduction makes it even harder to install sucks i cant use my stock one no more