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Some nice info on this site about custom mufflers, anyone have any ideas how to mod the TRD (mine is comming installed from the factory) -> just change ot the mufflers? Not looking for more sounds, just a few extra hp.
Correct. They are just basic single in / single out replacement stock mufflers that the shop uses for passenger vehicles so I am sure they have baffles in them and are not straight thru. The TRD is straight thru with holes inside to allow the sound for the two sides to balance.Thanks for the info! When you say stock-type I assume you men the mufflers were not 'straight through' pipes?