'- Stainless Steel Header Fitment For 90 to 96 Nissan 300ZX

Fully Stainless Steel Dual ... 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 "" Port : 1.6 Inch Collector: 2.5" Inch Outlet: 2.4" Inch Main Piping Size: None Bung: 2 : 1 Air Injection: None Flange Thickness: 3/8" Inch