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Daytona Twin Tec Twin Tuner II EFI Fuel & Ignition Controller

(3 reviews)

Item: 384044

$224.87 – $267.29

Select Your Vehicle - Fitment Guaranteed

Daytona Twin Tec Twin Tuner II EFI Fuel & Ignition Controller


  • Twin Tuner II has all the features of the original Twin Tuner and also includes ignition timing control capability
  • Easily adjusts the OEM Delphi fuel-injection and ignition to match the requirements of performance parts including high-compression pistons/heads, camshafts, free-flowing exhausts, and low-restriction air filters add 30% or subtract 20% fuel and retard spark timing up to 10 Degree
  • You can use the mode and up/down push button switches to make fuel trim adjustments in the rpm and throttle position ranges required by most applications; the fuel trim value is displayed on a bright daylight readable LED display
  • The Twin Tuner also has an advanced mode, using the optional USB Interface and PC Link Tuner software to make precise fuel adjustments and allows independent adjustments to the front and rear cylinders
  • May be compatible with other controller maps
  • Easy plug-in installation and setup, with no splicing, cutting, crimping or bulky interconnections
  • Compact size only 4" long x 2" wide x 1/2" tall
  • Compatible with Twin Scan II+ Tuning Aid install the Twin Scan II+ and ride the bike, then copy the air/fuel ratio corrections calculated by the Twin Scan II+ into the PC Link Tuner software
  • Made in the USA
Specification Details
Country of Origin USA
EFI Type Delphi
Engine Type Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLHR Road King 2001-2013
  • FLHRC Road King Classic 2007-2013
  • FLHRCI Road King Classic 2001-2006
  • FLHRI Road King 2001-2006
  • FLHRS Road King Custom 2004-2007
  • FLHRSI Road King Custom 2004-2006
  • FLHT Electra Glide Standard 2001-2007
  • FLHTC Electra Glide Classic 2001-2005, 2007-2013
  • FLHTCI Electra Glide Classic 2001-2006
  • FLHTCU Ultra Classic Electra Glide 2001-2013
  • FLHTCUI Ultra Classic Electra Glide 2001-2006
  • FLHTCUTG Tri Glide Ultra Classic 2009-2013
  • FLHTI Electra Glide Standard 2003-2006
  • FLHTK Electra Glide Ultra Limited 2010-2013
  • FLHX Street Glide 2006-2013
  • FLHXI Street Glide 2006
  • FLHXXX Street Glide Trike 2010-2011
  • FLST Heritage Softail 2006
  • FLSTC Heritage Softail Classic 2001-2011
  • FLSTCI Heritage Softail Classic 2001-2006
  • FLSTF Softail Fat Boy 2001-2011
  • FLSTFB Softail Fat Boy Lo 2010-2011
  • FLSTFI Softail Fat Boy 2001-2006
  • FLSTI Heritage Softail 2006
  • FLSTN Softail Deluxe 2005-2011
  • FLSTNI Softail Deluxe 2005-2006
  • FLSTS Heritage Springer Softail 2001-2003
  • FLSTSB Softail Cross Bones 2008-2011
  • FLSTSC Softail Springer Classic 2005-2007
  • FLSTSCI Softail Springer Classic 2005-2006
  • FLSTSI Heritage Springer Softail 2001-2003
  • FLTR Road Glide 2001-2004, 2007-2009
  • FLTRI Road Glide 2001-2006
  • FLTRU Road Glide Ultra 2011-2013
  • FLTRX Road Glide Custom 2010-2013
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXD Dyna Super Glide 2001-2005, 2007-2010
  • FXDB Dyna Street Bob 2007-2011
  • FXDBI Dyna Street Bob 2006
  • FXDC Dyna Super Glide Custom 2005, 2007-2011
  • FXDCI Dyna Super Glide Custom 2005-2006
  • FXDF Dyna Fat Bob 2008-2011
  • FXDI Dyna Super Glide 2004-2006
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDL Dyna Low Rider 2001-2005, 2007-2009
  • FXDLI Dyna Low Rider 2004-2006
  • FXDWG Dyna Wide Glide 2001-2005, 2007-2008, 2010-2011
  • FXDWGI Dyna Wide Glide 2004-2006
  • FXDX Dyna Super Glide Sport 2001-2005
  • FXDXI Dyna Super Glide Sport 2004-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXS Softail Blackline 2011
  • FXST Softail Standard 2001-2009
  • FXSTB Softail Night Train 2001-2009
  • FXSTBI Softail Night Train 2001-2006
  • FXSTC Softail Custom 2007-2010
  • FXSTD Softail Deuce 2001-2007
  • FXSTDI Softail Deuce 2001-2006
  • FXSTI Softail Standard 2001-2006
  • FXSTS Springer Softail 2001-2006
  • FXSTSI Springer Softail 2001-2006

Customer Reviews

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Great tuner for all 36 pin Delphi H-D ECMs

By   on  Verified Purchaser

Good instructions, easy to wire-in. Excellent customer support from Daytona Twin Tec. I set recommended programming from included chart and solved my lean condition. After I install the S&S 509 cams I'll take her to The Dyno guys for a tune. Well worth the money & time. Great alternative to more expensive tuners. Will work on any Harley Davidson 36 pin Delphi ECM. Tuning accessories available to tune yourself. 2002 Softail Deuce EFI


Twin tech 2

By   on  Verified Purchaser

I ordered the daytona twin tech 2 not realizing I couldn't use it. I already have a power vision 4 on my bike.


Power Upgrade

By   on  Verified Purchaser

Super easy to install with great instructions. Cleared up all the issues I had with my 2005 Road King after my 103 inch upgrade to my twin cam. Running like a dream. Parts Giant has the right parts for the right price.


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