aFe Twisted Steel 409 Stainless Steel Shorty Header (48-44003) 18090 An aftermarket exhaust system is

An aftermarket exhaust system is one of the simplest modifications you can make to your vehicle that will add both power and personality to your ride

High Quality 1-Piece Sealed Housing w/Aux

Standard compressors are rated for 150 psi to match all Air Lift tank ratings

CARB EO applies to A4 model years 2009-2012 only

aFe Twisted Steel 409 Stainless Steel Shorty Header (48-44003) 18090 An aftermarket exhaust system isTwisted Steel 409 SS Mid Length Tube Exhaust Headers by aFe. Primary Tubing Diameter: 1. 75". Header Style: Mid Length Tube. The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. These headers are 100% TIG