i had the thermal r&d...i liked it alot becuase the sound was deep and not soo raspy..had a different sound from all the other cars..but performance wise..not much a difference
the exhaust comes in a full cat back but im cheap and just bought the muffler..had it custom piped after the resonator..i got rid of it cause my neighbor liked the muffler so much i sold it to him..
i didnt even knew Thermal made a cat back for the celica GTS....my friend has it on his prelude and it sounds sick, idk if on the celica, if there would be any change in sound... its very deep, and is loud down low, and is lower then most exhausts up top.....u can hear vtec rip
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