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SportTrac Discussion
Engine & Drivetrain
the best size
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<blockquote data-quote="swshawaii" data-source="post: 1041148" data-attributes="member: 67547"><p>Can't find any benefit removing catalytic converters and thought there was a federal mandate against removing them. Stock cats on Gen 1 Tracs aren't that restrictive like the huge stock muffler that's designed for silence. The 4.0L SOHC is inherently pitchy and tends to sound worse as it gets louder at above 2000 revs. Think "fart can" that will NEVER sound as deep as a V8 regardless of displacement. JMO</p></blockquote><p></p>
[QUOTE="swshawaii, post: 1041148, member: 67547"] Can't find any benefit removing catalytic converters and thought there was a federal mandate against removing them. Stock cats on Gen 1 Tracs aren't that restrictive like the huge stock muffler that's designed for silence. The 4.0L SOHC is inherently pitchy and tends to sound worse as it gets louder at above 2000 revs. Think "fart can" that will NEVER sound as deep as a V8 regardless of displacement. JMO [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
the best size
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