Depends on how long you plan to keep the car. 5-10 years.. then aluminized is probably fine.
http://engr.ucsb.edu/~warped/junk/Adrians_V6Celica_out_060304.MOV
Theres my 1MZ with two magnaflow mufflers and 2.5" piping.
http://engr.ucsb.edu/~warped/junk/Adrians_V6Celica_out_060304.MOV
Theres my 1MZ with two magnaflow mufflers and 2.5" piping.