Stage 3 DNA Airbox Kit

DNA Filters Ltd, in association www.xt660.com proudly announce the official release of the High Performance

DNA Stage-3 Air Box Kit AK-Y6E07-S3 specially designed for the

Yamaha XT 660 X/R 2004’ – 2009’


This new BoltOn High Performance kit, from DNA, feaures:

  • Extreme air flow 111,9 CFM @ 1,5 Inches of water

  • + 40% more than the popular DNA Stage 2 application!

  • + 140,49% more than the stock air box & filter!

  • 98-99% filtering efficiency for maximum engine protection

  • Unique DNA air filter with built in venturi designed to smoothen out the air flow

  • Dyno proven +8 HP more power from the standard engine (with Powercommander or Race slip on’s)

  • Dyno proven +14 HP more power from a highly modified 700cc engine

  • Specially designed rubber velocity stack, increases and spreads torque over a wider rpm range, with the possibility to alter the tuned length for custom applications

  • All standard parts bolt on or attach to the S3 Air box (Battery, ECU, Rectifier, Temperature sensor, Idle circuit, AIS circuit, Crank case vent, Rear wheel mud flap)

  • Specially designed aluminium adapter that can be modified to adapt big bore throttle bodies

  • Designed to be used in rainy weather (Att. Not to be completely submerged in water)

  • Unique design of side covers & frame allows unrestricted air flow and catches the eye!

  • Shipped ready to install, includes installation info, 2 Powercommander Maps, dyno Graphs, and air flow Graphs

  • Limited production unit with individual Serial Number.

Part No. to order:  AK-Y6E07-S3
Application:             Yamaha XT660 X/R 2004’-2009’
Price:                        445€  + €25 package and posting

Designed and Manufactured in Greece by DNA Filters Ltd.
DNA Filters Ltd.
Head Office: 61, Vithinias str.
184 50 Nikea, Athens, Greece
T: (+30) 210 49 26 278
F: (+30) 210 49 26 279
www.dnafilters.com

Additional fitting instructions and comments from Kev


I must say I am impressed with the outcome; this mod delivers the power all the way across the whole rev range. This mod has exceeded my expectations. I will get it on the dyno as soon as I can get a booking.

I have found there are some small changes to the XT660 frame dimensions, in concern to the mounting points of the XT660X/R air boxes. To overcome the difference in dimensions, the intake pipe has been designed to be adjustable. It can be adjusted by means of fitting spacers between the intake hose & the frame of the air box, in order to shift the DNA air box housing backwards or forwards to line up it‘s mounting bolts.

I have added 2 PDF files. One is the installation instructions of the DNA stage 3 Air Box & the other is if you have a problem with the mounting bolts not lining up & what to do.

A bit of info for the technically minded

DNA stage 3 Filter size, 110mm long, 380mm circumference tapering to 300mm circumference. ID of filters outlet is 74mm tapering to 49mm at the throttle body. The intake pipe has been lengthened from 80mm to 160mm. The standard resonator has been removed. The DNA air box is heavier by 400grams from the standard XT660 air box. My dyno results to come

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