PPE Heat/Sound Firewall Insulator For 1999-2007 GM Sierra/Silverado/Tahoe/Yukon 2015-2021 Subaru WRX STI Radius arm drop brackets to

Radius arm drop brackets to correct caster and improve suspension geometry

Heavy duty track bar relocation bracket repositions axle correctly

The Armor Lite series delivers aggressive tone

Durable single wall construction for long-term use

PPE Heat/Sound Firewall Insulator For 1999-2007 GM Sierra/Silverado/Tahoe/Yukon 2015-2021 Subaru WRX STI Radius arm drop brackets toDiesel engines produce a lot of heat, especially in high output situations like towing, racing, and light to light driving. Time to upgrade your tattered, dirty firewall insulation with the brand new PPE Insulator Firewall. 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