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Does a k&n filter or cold air intake throw any codes or cause any running conditions? What about tines such as Trifecta's? looking for upgrades that don't cause issues with emmisions inspection, running condition issues and that don't show up when readers etc are hooked to the OBD port during inspection or service
 

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First, don't put on a K&N oiled filter. They let too much crud through and can score the engine and turbocharger without providing any more power. Performance tunes address the various codes that would be thrown as a result of parameter changes. The current best tune is from Bad News Racing.
 

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As far as performance, your best bet is a tune. The intake is really just going to give you turbo noise. I had the K&N Filter with no tune for over a year, no codes. Then I got the tune with the Injen Dry Filter from BNR, still no issues. The 2 best from what I have read would be the K&N SRI with the Injen Filter, I suggest looking for a used K&N Intake or the MFAB one that costs more, but is the best quality with an “air straightener”. (Suggested by many as the stock one has a honeycomb straightener built into it). Sadly, with the storms in Florida right now BNR is closed until further notice. So there is a wait currently. I suggest looking for a used handheld in the meantime.
 

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I do not think there is a wait for MFAB's intake though, just the tunes.
 

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By far the best tune currently available is from BNR. You can get it here: BNR Tune 2011-2016 Limited Chevrolet Cruze 1.4L Turbo

As for intakes, they're mostly cosmetic and allow you to hear the turbo sounds more. I would stay far away from K&N filters. Their intake is alright, when used with an Injen EA nanofiber filter, but K&N filters pass 47x more fine dust than OEM cellulose filters and clog to restriction with only 1/3 the amount of dirt. They also have a tendency to foul up the MAF sensor. They need to be cleaned very often to provide any performance gain, which drives up the cost and maintenance of the filters in addition to the risk of over-oiling, and can cause turbo dusting issues. There's really no reason to use one unless you have a purpose built track car and every last horsepower counts.

Pass on the K&N and get an AEM intake instead: Chevrolet Cruze 1.4T AEM Cold Air Intake for 2011-2016 Limited

If you want to spend more money, BNR also has an upgraded turbo and ignition coil, but you're getting into more heavy modifications at that point. Have you considered any suspension or chassis upgrades? The UR upper strut mount braces are very nice and make a big difference.

Chevrolet Cruze, 2011-2016 Limited, Ultra Racing Front Strut Bar
Chevrolet Cruze, 2011-2016 Limited, Ultra Racing Rear Lower Bar
 

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By far the best tune currently available is from BNR. You can get it here: BNR Tune 2011-2016 Limited Chevrolet Cruze 1.4L Turbo

As for intakes, they're mostly cosmetic and allow you to hear the turbo sounds more. I would stay far away from K&N filters. Their intake is alright, when used with an Injen EA nanofiber filter, but K&N filters pass 47x more fine dust than OEM cellulose filters and clog to restriction with only 1/3 the amount of dirt. They also have a tendency to foul up the MAF sensor. They need to be cleaned very often to provide any performance gain, which drives up the cost and maintenance of the filters in addition to the risk of over-oiling, and can cause turbo dusting issues. There's really no reason to use one unless you have a purpose built track car and every last horsepower counts.

Pass on the K&N and get an AEM intake instead: Chevrolet Cruze 1.4T AEM Cold Air Intake for 2011-2016 Limited

If you want to spend more money, BNR also has an upgraded turbo and ignition coil, but you're getting into more heavy modifications at that point. Have you considered any suspension or chassis upgrades? The UR upper strut mount braces are very nice and make a big difference.

Chevrolet Cruze, 2011-2016 Limited, Ultra Racing Front Strut Bar
Chevrolet Cruze, 2011-2016 Limited, Ultra Racing Rear Lower Bar
Be advised, I ordered a Tune, for my 4th Cruze, today, and received an email from BNR that they would be evacuating, tomorrow for Irma. So, there may be a slight delay.


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