Does it have a DC 4-2-1 Sports header, Lighweight Aluminum Flywheel, Intercooler, ECU computer chip, Blowoff valve, Fuel regulator also is it supercharged? The reason why I'm asking does it already have these certain parts is because I'm upgrading my sports racing performance on my car and was wanting to buy some of the parts that I don't already have. Of all that I listed, tell me what is already in the car and what's not, so I can buy the upgrades I need for my car. Thanks.
None of the above, all of those are aftermarket parts.
I'm going to assume that your vehicle is a ZZT231 model (00-05 GTS). In stock form, it is a Naturally Aspirated 1.8L VVTL-I engine putting out 180hp. Naturally Aspirated means that it does not use Forced Induction (either turbocharger or supercharger) and would have no need for an intercooler or blowoff valve.
Time for you to join a Celica Forum, my friend, and learn from the best source of information: your fellow owners
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