2004 Subaru Impreza Motor Builds Upgrades

Manley Economical H Beam Steel Connecting Rod - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

Darton Iron Dry Sleeves - Subaru EJ25 Models (inc. 2004-2021 STI)

King Crankshaft Main Bearings SUBARU EJ20/EJ22/EJ25 - 2002-2014 Subaru WRX / 2004-2021 STI

IAG Performance V2 Competition Series EJ Timing Belt Tensioner - 2015-2021 Subaru STI

Subaru OEM Head Gasket - 2004-2006 Subaru STI

Kelford Stage 1 Performance Camshafts - 2002-2014 Subaru WRX / 2004-2021 STI

IAG Performance 750 Closed Deck Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

IAG 550 Street Cylinder Heads Package - S20 Heads (Includes Cams & Lifters + Chamber Mods)(EJ20 Heads On 2.5L Block Only) - 2002-2005 Subaru WRX

Manley Performance Pro Series Turbo Tuff I-Beam Connecting Rod Set - Subaru Models (inc. 2002-2005 Subaru WRX / 2004-2021 Subaru STI)

Company23 Small Idler Longer Pulley Bolt - Subaru DOHC EJ Turbo Models (inc. 2015-2021 STI / 2004-2012 Forester / 2003-2014 Impreza)

Subaru OEM Forged Crankshaft - 2002-2005 Subaru WRX

IAG 550 Street Cylinder Heads Package - S20 Heads (Includes Cams & Lifters / No Chamber Mods) - 2002-2005 Subaru WRX

Kelford High Lift Racing Cam Set - 2002-2014 Subaru WRX / 2004-2021 STI

Brian Crower Stage 3 280 Camshafts - 2004-2007 Subaru STI

IAG Performance 550 Short Block Includes: Case Halves - Subaru Models (Inc. 2002-2014 Subaru WRX / 2004-2021 STI / 2004-2013 Forester)

Kelford Stage 3 Performance Camshafts - 2002-2014 Subaru WRX / 2004-2021 STI

GSC Power-Division Camshafts S1 - 2004-2007 Subaru STI

Manley Performance Platinum Series Piston Set 99.55mm 8.5:1 - Subaru Models (inc. 2006-2014 Subaru WRX / 2004-2021 Subaru STI)

Kelford High Performance Spring and Retainer Set - Subaru Models (inc. 2002-2014 WRX / 2004-2021 STI)

PERRIN Lightweight Crank Pulley - Black - Subaru Models (inc. 2015-2021 STI / 1998-2012 Forester / 1993-2014 Impreza / 1993-2009 Legacy)