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i got 2 1/4 with flowmaster 40... Sounds sick
ive got a 79 toy 20r headman header no cat and 2.25 with a flowy and with the 31in tires it got around 10-12.5 mpg depending on how much i got into it i dunno what its gunna get now with the 33in tires i havent got a chance to drive it yet im wating on a draglink that was also when the exauset was half assed a rusted out header and the tail pipe exiting at the back side of the cab now its done right with a new header and a full exaust
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