After debating to make the Thunderbird even louder I decided to have the 12″ Glasspacks removed as they were acting as resonators suppressing the sound of the Flowmaster 40 series. I took it to a shop in Lodi, CA. to have both removed and also the exhaust pipe bolts shortened and retightend. The right side was beginning to rattle during car startup. 

In addition to the work already done a crossmember pipe was fitted between the two exhaust pipes to add stability. This place did a very good job in there care and workmanship. I was impressed with the fact that they just didn’t use a saws all to cutout the needed replacement pipes but instead used the pipe cutter and machine to create the proper diameter flange fitting.