Stainless Long Tube Header Fitment For 78 to 86 Chevy Monte Carlo Metric Street Stock 305 CID By OBXRS

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 Manufacturers 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 1.75 Port Shape Oval Port ID 1.7  Collector 3.0 Outlet 3.0 Main Piping Size NA O2 Bung 0 EGR 0 Air Injection 0  Flange Thickness .40