1 3/4 are good with AFR's, but on mild motors I owuld stick to the 1 5/8's. Now on the install, yes you have to undo the motor mounts, and the steering shaft. hope this helps.
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StAnGaHoLiC!!!
1995 GT
S-Trimmed 306, with H/C/I, and some other stuff. It just sounds fast.
My Car
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