ATI Performance® 705514 - PCS Simple Shift™ Transmission Harness

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Product Details

PCS Simple Shift™ Transmission Harness (705514) by ATI Performance®. Simple Shift is the latest breakthrough in electronic overdrive transmission control. No laptops or hand-held tuning devices are required to completely control shift points, shift firmness, and torque convertor lockup. All parameters are simply adjusted with easy-to-use dials on the end of the Simple Shift unit.


  • For CARB and EFI.


  • Designed to deliver trouble-free, consistent performance
  • Right for your vehicle and lifestyle
  • Made from high-quality materials for ultimate durability
  • Manufactured to meet or exceed strict quality requirements

ATI Performance Products is a family owned and operated company with over 50 years of experience in manufacturing top-grade race products, including competition transmissions, flexplates, adapter kits and internal transmission components. Located in Maryland, ATI Performance® produces a variety of true track-tested and proven products manufactured under the strictest quality control in one of the most advanced manufacturing facilities in the industry. ATI proudly holds over a dozen of U.S. Government patents.

Part Number:

Vehicle Fitment

II 2001-2004
Commercial Chassis 1994-1996
Rainier 2004-2007
Roadmaster 1994-1996
Commercial Chassis 1994-1996
Escalade 1999-2000, 2002-2006
Fleetwood 1994-1996
Astro 1993-2005
Avalanche 2002-2008
Blazer 1993-2005
Camaro 1994-2002
Caprice 1994-1996
CK Pickup 1993-1999
Colorado 2004-2012
Corvette 1994-2004
Express 1996-2015
G-Series 1993-1995
Impala 1994-1996
S-10 Blazer 1993-1994
S-10 Pickup 1993-2004
Silverado 1500 1999-2013
Silverado 2500 1999-2001
SSR 2003-2006
Suburban 1993-2009
Tahoe 1995-2009
Trailblazer 2002-2009
Canyon 2004-2012
CK Pickup 1993-1999
Envoy 1998-2000, 2002-2009
G-Series 1993-1995
Jimmy 1993-2005
Safari 1993-2005
Savana 1996-2014
Sierra 1500 1999-2013
Sierra 2500 1999-2001
Sonoma 1993-2004
Suburban 1993-1999
Typhoon 1993
Yukon 1993-2009
Yukon Denali 2001-2006, 2010
H2 2003-2007
H2 SUT 2003-2010
H3 2006-2010
H3T 2009-2010
Bravada 1993-1994, 1996-2004
Firebird 1994-2002
GTO 2004-2006
9-7X 2005-2009


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ATI Performance® 705514 - PCS Simple Shift™ Transmission Harness

Questions and Answers

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