True duals
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Joined: Jun 2005
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True duals
Just to let some of you know I have an 01 F150 Supercrew 5.4l . And I ran true duals 2.25 straight pipes left the cats in and lost major low end power. It was better in the winter but as soon as it warmed up to around 70 degress it sucked. Also a word to the wise I talked to a muffler shop that owned a supercrew and they cut out the cats and ran duals on it. When I talked to the guy he recommended that not to do it because he burned out the pcm at a cost of $700.00.
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Joined: Jan 2005
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From: Fort Worth,Tx
Originally Posted by possium8
Just to let some of you know I have an 01 F150 Supercrew 5.4l . And I ran true duals 2.25 straight pipes left the cats in and lost major low end power. It was better in the winter but as soon as it warmed up to around 70 degress it sucked. Also a word to the wise I talked to a muffler shop that owned a supercrew and they cut out the cats and ran duals on it. When I talked to the guy he recommended that not to do it because he burned out the pcm at a cost of $700.00.
he burned out his PCM thats bull and yes going to true duals with a free flowing muffler u will loose low end but will gain more top end. but keeping ur cat in is good thing for holding ur compression