aFe Twisted Steel Headers (Catted) 01-06 BMW M3 L6-3.2L S54 fits_2016-2022`Porsche`911 They provide a smooth transition

They provide a smooth transition for the air from the air intake system to the turbos with minimum restriction

and attaches with no additional hardware

47 Percent Airflow Increase Over OEM Equipment

MACH Force-Xp 2-1/2 IN 304 Stainless Steel Cat-Back Exhaust System w/ Black Tips Porsche 911 GT3 14-19 H6-3

5in to 3in 304 SS Cat-Back Exhaust w/ Black Tip

aFe Twisted Steel Headers (Catted) 01-06 BMW M3 L6-3.2L S54 fits_2016-2022`Porsche`911 They provide a smooth transitionaFe Twisted Steel Headers (Catted) 01 06 BMW M3 L6 3. 2L S54 Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in April, 1999, aFe was created to address an obvious need in the automotive aftermarket industry: a lack of choice for a high performance aftermarket air filter. We are a team of engineers, machinists, production and sales people who believe in the