Re: What muffler offset are you running? I plan on Spintechs. True duels with side e
78 has a walker true dual kit,now with tails removed,after the cherry bombs.
79 has custom bent duals,with and H pipe to flowmasters.
both cleaned out manifolds to pipes @ 2.25, out before the rear tires....
lol I'm sure the neighbours know when I leave.
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John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
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