OBX Stainless Steel Header Fitment For 1993-2001 Nissan Altima 2.4L K24DE

T304 Fully Stainless Steel Dual T.I.G. welded construction for stronger hold  Accessories in photo are included  No installation instruction included in this kit, we recommend professional installation Manufacturer's Limited Lifetime warranty against manufacturer defects (Must fill out and return warranty card with a copy of the receipt and within 30 days of purchase date) Primaries: 1.7 Inch Port Shape: Normal "O" Port ID: 1.6 Inch Collector: 2.3" Inch Outlet: 1.9" Inch Main Piping Size: 2.0" Inch O2 Bung: 2 EGR: None Air Injection: None Flange Thickness: 3/8" Inch