The Precision Raceworks Phenolic Spacer is made in the USA from premium fiber impregnated phenolic material.  With a Rockwell Hardness of 100 and a conductivity rating of 2.03 it is the perfect material for insulating between heat generating parts such as the cylinder head and other parts you wish to stay cool like the intake manifold.

Our 1/2" phenolic spacer not only provides a thermal insulation between the cylinder head and intake plenum.  It has also been designed to make use of factory O-Rings rather than messy gasket maker adhesive to ensure an air tight seal each and every time along with easy installation and removal.

A phenolic spacer works by reducing heat transfer from the cylinder head to the manifold which results in reduction of intake air temperature, allowing for cooler air to enter the cylinders which is more dense and reduces chance of detonation in the cylinder.

This spacer is a must for all metal performance manifolds on the market and works without stud extensions for many of the performance manifolds including all BMP intake manifolds.

Specifications

• Actual Product Weight: .65 lbs
• Engine Fitment: N54, N55, S55
• Seal Type: Factory manifold spec o-rings
• Spacer thickness: 0.5" 
• Material: Canvas Phenolic
• Package Contents:
• Qty 1 - Phenolic Spacer plate
• Qty 6 - O-ring seals

Fitment

• Bmw 135i 2007 to 2013
• Bmw 135is 2013
• Bmw 1m 2011
• Bmw 335i 2006 to 2015
• Bmw 335i Gt Xdrive 2014 to 2016
• Bmw 335i Xdrive 2009 to 2015
• Bmw 335is 2011 to 2013
• Bmw 335xi 2007 to 2008
• Bmw 435i 2014 to 2016
• Bmw 435i Gran Coupe 2015 to 2016
• Bmw 435i Xdrive 2014 to 2016
• Bmw 535i 2008 to 2017
• Bmw 535i Gt 2011 to 2017
• Bmw 535i Gt Xdrive 2011 to 2017
• Bmw 535i Xdrive 2009 to 2016
• Bmw 640i 2012 to 2018
• Bmw 640i Gran Coupe 2013 to 2017
• Bmw 640i Xdrive 2014 to 2017
• Bmw 640i Xdrive Gran Coupe 2014 to 2017
• Bmw 740i 2011 to 2015
• Bmw 740li 2011 to 2015
• Bmw 740li Xdrive 2013 to 2015
• Bmw Activehybrid 3 2013 to 2015
• Bmw M135i 2013 to 2016
• Bmw M2 2016 to 2020
• Bmw M235i 2014 to 2016
• Bmw M235i Xdrive 2015 to 2016
• Bmw M3 2015 to 2018
• Bmw M4 2015 to 2020
• Bmw X1 2013 to 2015
• Bmw X3 2011 to 2017
• Bmw X4 2015 to 2016
• Bmw X4 2017 to 2018
• Bmw X5 2011 to 2018
• Bmw X6 2008 to 2017
• Bmw Z4 2009 to 2014