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04-14-2020, 12:44 AM
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Software tuning or a header+racerom
A noob question here.
What is the best way to get rid of the torque dip in the OEM 17+ BRZ. Just software tune or is it really necessary to get a header setup? Does the header actually allow you to still pass State of CA smog inspection, with say a switch back to a map that will allow for this? Or how does passing smog work? Thanks! |
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04-14-2020, 02:41 AM
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#2 |
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Wheels for Brains
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Best way? Header and a tune.
Software tune only is not enough. It can help flatten the dip a little bit and improve response, but the dip will never go away without a proper header and tune. You can reference the myriad of dyno charts and results from people throughout this forum. In California, a new car is smog exempt for 8 years, except during title transfers. Used cars are exempt for 8 years following their model year. If you ever need to smog the car, you will have to reinstall the stock header and flash the ECU back to a stock map. |
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| The Following User Says Thank You to EndlessAzure For This Useful Post: | fxo (04-14-2020) |
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04-14-2020, 10:21 AM
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If CA is california, my understanging is they are super strict on emmissions testing. And it would be virtually impossible to pass without stock tune and stock exhaust components. You best optin may be to keep car stock but just run E85 fuel and tune . Then come smog check tume flash back to petrol and petrol tune. |
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04-14-2020, 10:22 AM
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04-14-2020, 04:32 PM
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#5 | |
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04-14-2020, 08:41 PM
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To pass smog in CA, you would need both your cats to pass smog. If your aftermarket header does not have a cat (even if it did, its still a coinflip if theyre pass or not)then you gotta install your oem headers then you could pass.
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