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Old 10-19-2020, 06:34 PM   #21
55blacktie
Senior Member
 
Join Date: Aug 2020
Posts: 442
Default Re: Heater no hot air from Heater?

The Tbird's frame's X-member limits the size of the mufflers. The stock inlet is 2"/outlet 1 3/4." A case length of 14", OAL 19", width 7.850", and 4.125" thickness will fit the original location. Although 55s don't have resonators, you could add them.
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