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Discussion Starter #1
Weird question...On an `03 4.8L, what is the size of the stock throttle body? And what would upgrading it to an 80mm BBK do for it? I came across one that is in perfect condition for a decent price. Just wondering. Right now only other mods are Magnaflow catback and intake. Maybe a tune later this year.
 

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the stock TB is just fine on teh 4.8, its teh saem sized unit as is used on the 6.0L GEN 3 engines.

peace
Hog
 

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HOT AIR BALLOON OWNER
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Unless it's really cheap, skip it. Mine was sub $100.
 

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The suspension changer
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does a tb really help out? I was looking into one bbk one for my 5.3L but will it help much at all?
 

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HOT AIR BALLOON OWNER
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does a tb really help out? I was looking into one bbk one for my 5.3L but will it help much at all?


Not really, you need some big power to make it useful.
 
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