Are MagnaFlow Mufflers Compatible with the Exhaust on a 1995 Ford F-150 4x4 with 5.8 Liter V8

Updated 03/06/2012 | Published 03/02/2012

Question:

I have a 1995 Ford 150, 4X4 5.8 L vin H I would like to know what muffler I should decide to buy. I want a magnaflow. My inlet and outlet are 2-1/2in.Striaght through. My question is a concern of back pressure. Are these mufflers going to interfere with manufacture specs?

asked by: Clifford T

Expert Reply:

The MagnaFlow mufflers will reduce back pressure and free up your exhaust system to flow better, creating more horsepower and torque, but will not reduce the back pressure enough to affect the OEM specs and cause an O2 sensor to throw a fault code.

Your vehicle only requires about 2 to 3 lbs of back pressure to function correctly and staying with the original inlet and outlet diameters at the muffler will not affect manufacturer specs.

The only time you would be in danger of creating too much flow is if you were to drastically increase the size of the complete exhaust system from the exhaust manifolds all the way out to the tailpipe.

When selecting a muffler you will need to select the correct length and make sure the overall dimensions of the muffler are not too large for installation on your truck. I have provided a link to all of the 2-1/2 inch inlet and outlet mufflers for you to select from.

expert reply by: Robert G