At Rapid Transit, technician Jason Garcia positions the ’04 F-150 on his lift in preparation for installing MagnaFlow’s new side-by-side twin pipe cat-back.
Although the stock press-bent exhaust system with its big ugly muffler did its job, we were about to learn that it didn’t evacuate the exhaust gases as quickly or efficiently a the MagnaFlow cat-back, nor did it provide that wonderful sound.
Jason easily separated the “crimped” joint in the exhaust piping just before the stock muffler.
He then disconnected the factory hanger in front of the muffler.
Jason also unhitched the remaining stock hangers holding the section of exhaust piping from before the muffler to the end.

With a helping hand from a colleague, Jason freed the major section of the stock exhaust fromt eh muffler over the rear axle to the end and removed it.
Here’s a close look at the stock exhaust system (top) and the mandrel bent, still-wrapped Magnaflow cat-back.
The Magnaflow polished stainless steel straight-through, unbaffled muffler with that incredible sound jumped into place easily.
The stock hangers before and after the muffler are reused to secure the new system.
The highly polished side-by-side twin exhaust tips which exit just forward for the passenger’s side rear wheel are carefully positioned.




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