PPE Engine Firewall Insulator 01-07 GM 6.6L Duramax YUK-BK-GM11.5 the unit is flowed and

the unit is flowed and rated at a minimum of 2

IMPORTANT NOTE: Automatic Transmissions - For best retarding results use a TowLoc

and is built with longevity in mind

more positive shifts

this perfect solution is a must have for any big rig

PPE Engine Firewall Insulator 01-07 GM 6.6L Duramax YUK-BK-GM11.5 the unit is flowed andUpgrade the look of your engine compartment and get rid of your tattered, falling apart, engine compartment insulation with this kit from PPE. Create a barrier between you and the heat on your 2001 2007 Duramax diesel engine with this custom fit replacement. This functional upgrade features merrowed stainless steel wire edging for long lasting performance and grommets for an OEM fit. The ceramic fiber interior is sandwiched between the tightly woven