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Do I need to tune my 21 GT for a JLT CAI?

lapdiaz

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I recently ordered a JLT cold air intake for my 2021 Mustang GT. I’m not sure if I’m REQUIRED to tune or if it’s just recommended. I do live in Phx AZ lol.

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Mspider

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It shouldn't require a tune and if it does require a tune I would return it. Crazy to lose your powertrain warranty over a intake 😂
 

Bitten in '69

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JLT states on their website which of their products require a tune, and which ones do not. Look up the model you bought.
 

Mdtaylorjr

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The jlt intake is usually a tune required intake due to the larger tube for the MAF. There are some intakes that have an insert to use so you don't have to tune. These intakes typically don't add much though on the dyno maybe 5 hp real world especially in the south might lose power on the street due to high ait and the car pulls timing.
 

SensesFail

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It shouldn't require a tune and if it does require a tune I would return it. Crazy to lose your powertrain warranty over a intake 😂
Absolutely listen to this if you want a slew of unending issues and terrible driving/stalling.
 

Bill A

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I have the JLT intake on my car and a tune is required. I tuned my car a month after I got it so adding the JLT intake wasn't an issue. I think you can get the insert so it will work without a tune.
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