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Performance Filter - EA888 TSI / TDI Engine

$49.00
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The Double Apex Performance Air Filter will increase your engine's performance by reducing intake restriction and allowing the turbo to breathe easier, without sacrificing filtration.

This reusable filter is manufactured to Double Apex specifications by industry leading manufacturer Green Filter USA and proven by our in-house test data. Green Filter supplies the same synthetic oiled, woven cotton fabric filter technology to top racing organizations, including Saleen, Mazdaspeed, Chip Ganassi Racing and the IMSA Porsche GT3 Cup Challenge. It is also used by Mopar in their factory warranty backed performance intakes and filters. 


This Fits: 

Year Make Model Engine Type Notes
2013 Audi A3 2.0L Diesel US
2003-2012 Audi A3 2.0L Diesel All
2013 Audi A3 2.0L F/I US
2009-2012 Audi A3 2.0L F/I All
2004-2010 Audi A3 1.9L Diesel All
2003 Audi A3 1.9L Diesel All (from May 2003)
2006-2012 Audi A3 1.8L F/I All
2009-2012 Audi A3 1.6L Diesel All
2012-2015 Audi Q3 2.0L Diesel All
2011-2015 Audi Q3 2.0L F/I All
2015 Audi Q3 Quattro 2.0L F/I All
2014 Audi TT 2.0L Diesel All
2008-2012 Audi TT 2.0L Diesel All
2010-2014 Audi TT 2.0L F/I All
2008-2014 Audi TT 1.8L F/I All
2014 Audi TT Quattro 2.0L F/I All
2013 Audi TT Quattro 2.0L F/I All non-US
2009-2012 Audi TT Quattro 2.0L F/I All
2013-2015 VW Beetle 2.0L Diesel All
2012-2014 VW Beetle 2.0L F/I All
2011 VW Beetle 2.0L F/I All (from October 2011)
2011-2014 VW Beetle 1.6L Diesel All
2012-2014 VW Beetle 1.4L F/I All
2011 VW Beetle 1.4L F/I All (from October 2011)
2012-2015 VW CC 2.0L Diesel All
2009-2015 VW CC 2.0L F/I All
2012-2014 VW CC 1.8L F/I All
2012-2015 VW CC 1.4L F/I All
2006-2015 VW Eos 2.0L Diesel All
2009-2015 VW Eos 2.0L F/I All
2008-2015 VW Eos 1.4L F/I 160 BHP
2010-2014 VW Golf 2.0L Diesel US
2004-2014 VW Golf Plus 2.0L Diesel All
2005-2009 VW Golf Plus 1.9L Diesel All
2009-2014 VW Golf Plus 1.6L Diesel All
2010-2014 VW Golf Plus 1.4L F/I 160 BHP
2006-2009 VW Golf Plus 1.4L F/I 140/170 BHP
2008-2009 VW Golf V 2.0L Diesel All
2003-2007 VW Golf V 2.0L Diesel All (except 75 BHP)
2003-2009 VW Golf V 1.9L Diesel All
2006-2009 VW Golf V 1.4L F/I 140/170 BHP
2005 VW Golf V 1.4L F/I 140/170 BHP Turbo
2008-2013 VW Golf VI 2.0L Diesel All
2011-2013 VW Golf VI 2.0L F/I 211 BHP
2010 VW Golf VI 2.0L F/I All (except 270 BHP)
2008-2009 VW Golf VI 2.0L F/I 211 BHP
2009-2013 VW Golf VI 1.8L F/I All
2009-2013 VW Golf VI 1.6L Diesel All
2008-2013 VW Golf VI 1.4L F/I 160 BHP
2009-2014 VW GTI 2.0L F/I All
2009-2014 VW Jetta 2.0L Diesel All
2008-2010 VW Jetta 2.0L F/I All
2006 VW Jetta 1.9L Diesel All
2005 VW Jetta 1.9L Diesel BRM engine code
2014 VW Jetta 1.8L F/I All
2012-2014 VW Jetta GLI 2.0L F/I All
2009-2010 VW Jetta GLI 2.0L F/I All
2005-2015 VW Jetta V 2.0L Diesel All
2012-2013 VW Jetta V 2.0L F/I All
2010-2011 VW Jetta V 2.0L F/I TSI
2005-2009 VW Jetta V 1.9L Diesel All
2009-2014 VW Jetta V 1.6L Diesel All
2011-2014 VW Jetta V 1.4L F/I 160 BHP
2010 VW Jetta V 1.4L F/I 140/160/170 BHP
2006-2009 VW Jetta V 1.4L F/I All
2006-2015 VW Passat 2.0L Diesel All
2005 VW Passat 2.0L Diesel 3C model
2009-2015 VW Passat 2.0L F/I All
2008 VW Passat 2.0L F/I CCTA engine code
2006-2009 VW Passat 1.9L Diesel All
2005 VW Passat 1.9L Diesel 3C model
2007-2015 VW Passat 1.8L F/I All
2009-2014 VW Passat 1.6L Diesel All
2013-2014 VW Passat 1.4L F/I 150/160 BHP
2012 VW Passat 1.4L F/I 150 BHP
2011 VW Passat 1.4L F/I 150/160 BHP
2009-2010 VW Passat 1.4L F/I 150 BHP
2008-2012 VW Passat CC 2.0L Diesel All
2008-2010 VW Passat CC 2.0L F/I All
2008-2012 VW Passat CC 1.8L F/I All
2007-2015 VW Tiguan 2.0L Diesel All
2010-2015 VW Tiguan 2.0L F/I All
2009 VW Tiguan 2.0L F/I Turbo
2007-2008 VW Tiguan 2.0L F/I All
2012-2015 VW Tiguan 1.4L F/I 160 BHP
2010-2011 VW Tiguan 1.4L F/I 150 BHP
2007-2009 VW Tiguan 1.4L F/I All

Test Results:

We’re not interested in selling something that has no benefit or that can’t keep up with the competition. Any performance product we sell will be backed up by thorough testing and analysis. A performance air filter has a simple job, minimize restriction while still effectively cleaning the air. Our manufacturing partner Green Filter USA has already tested the filtering performance, what’s missing is application specific performance testing.

The first step was to determine if the Double Apex filter flowed better than stock and to see how it stacked up against the competition. Next we'd make sure the bench results translated to the real world.

Bench Testing

We constructed a simple flow bench using an actual air box from a VW 2.0T engine and in addition to the OE stock filter picked two popular performance filters currently on the market; an unoiled "dry" filter, and another brand oiled filter.

The test was simple. Using a variable speed fan we determined the minimum amount of power the fan needed to keep the ball afloat. Lower power, or voltage, meant a less restrictive air filter. 

Bench Test Setup
Test Subjects

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bench Test Results

The stock filter was, not surprisingly, the most restrictive of the bunch. Coming in a close second was the dry filter. This made sense considering the primary advantage of a dry filter is easier service, at the expense of performance. On the other end of the spectrum were the two oiled filters with a slight edge going to the Double Apex filter. We believe the advantage can be attributed to the superior flow characteristics of cotton fabric vs. cotton gauze and lower rubber seepage into the fabric due to the precision molding process used.

Road Testing

The best way to test an intake component on a vehicle is in real world driving conditions. Outside of a full size wind tunnel it is nearly impossible to properly simulate air flow. Most dyno fans are single speed and don’t flow a realistic amount of air.

Using a Race Capture Pro, a motorsport grade data acquisition system, we measured the intake restriction at the turbo inlet and vehicle acceleration at wide open throttle. The OE filter and Double Apex filter were tested. Results are an average of multiple tests run in two directions to account for minor elevation changes. The test vehicle was a stock 2014 Jetta GLI with a 2.0T EA888 Gen 3 engine.

Road Test Results

The air flow restriction with the Double Apex filter was significantly less than the OE paper filter. This results in lower engine pumping losses, higher turbo compressor efficiency and as a result lower intake air temperatures. Improved acceleration and power gains were seen throughout the RPM range.


Installation Instructions:

Installation should take a professional about 15 minutes and detailed instructions make the filter easy to install at home. If you need an installer recommendation in your area please contact us.

  Performance Filter Installation Instructions

 



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