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Designed for swapping LS-based V8 engines (LS1, LS2, LS3, LS6, LS7, etc.) into older cars and truck
Full length pipe layout for power gain at mid to high RPM
Fully mandrel bent tubes made of 16-gauge (1.5mm thickness) 304 stainless steel
Head flange laser-cut from 3/8-inch (9.5mm) thick steel plates and flattened by hydraulic press; with chrome coating
Polished surface for extra resistance against rusting; all joints TIG welded for great resistance against cracking and wearing
FITMENT NOTES - NOT DIRECT FIT for stock applications - Will NOT fit LS4 engines - Will NOT work on 4WD/4x4 models - Will NOT install with factory column shift linkage - May require special motor mounts for clearance - May require angled spark plug boots for tight clearance - If using larger 4L80E or older THM 350/400 automatic transmissions the bellhousing ears may need to be trimmed for proper clearance TECH SPECS Header Type.........................Long Tube / Full-length Primaries Diameter...............1-3/4 in. (45mm) Collector Diameter................3 in. (76mm) Head Flange Thickness........3/8 in. (9.5mm) Pipe Thickness.....................16-gauge (1.5mm) Material.................................304 Stainless Steel Finish..................................Polished