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Flowmaster Flow FX Muffler and Fitment

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Old Jan 1, 2025 | 10:23 AM
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Smykster's Avatar
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Car: 1991 RS 305TBI
Flowmaster Flow FX Muffler and Fitment

Has anyone used the "newer" Flowmaster Flow FX mufflers on their 3rd gens? They sound really good.

I have a 91 RS 305tbi. Looks like my stock exhaust piping should be 2.25in going into the muffler and 2.25 going out. Would this muffler fit in that case? It has 2.25 inlet and 2.25 outlet.
https://www.flowmastermufflers.com/p...rs/parts/71235

The muffler itself is about 4 inches shorter in length than the stock one. Does anyone foresee fitment issues?
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