Patrol 4500 - 4200 Full Steel Headers Product Specifications and Features: Headers + Downpipe 6 months warranty. Made of 304 stainless steel and full TIG welding. Hazzer in the downpipe prevents leakage. Available in 3-inch size, suitable for stock. Compatible with Nissan 4500 or 4200 engines. Manual and automatic transmission. Fits Station Wagon and Short Wheelbase.