LOJ Conversions 300ZX LS Swap Headers are constructed of 100% USA Sourced T304 Aircraft Quality Stainless Steel, with mandrel bent 1.875” ID primaries and 3” collectors. The flanges are 3/8" thick laser cut stainless steel. The headers are TIG welded at the flanges, the inside of the ports are hand ground for maximum flow, and the flanges are machined flat after welding is complete.
The collectors feature full flow construction with internal scavenging spikes for maximum performance. The headers include new gaskets and bolts for attachment to your cylinder heads. These headers are custom made for the 300ZX engine bay and are designed to fit perfectly when using the LOJ Conversions 300ZX Engine Swap Kit!! Absolutely NO modifications to your car are required to fit these headers when using our swap kit, only a simple relocation of the clutch hardline on manual transmission swaps!
These headers carry a LIFETIME WARRANTY to the original purchaser covered by Kooks.