1 of 2
1 of 2
With twice the diaphram area and spring pressure of the stock wastegate; BigHead keeps the valve seated longer; raising peak boost significantly. Delivers precise boost control; improves Duramax; Cummins; Power Stroke acceleration.
The legacy and technological leadership of Gale Banks Engineering in the diesel aftermarket is unquestioned. With its long history of breakthrough innovations (many patented!) in high performance gas and diesel engine development—including turbocharging and drive train—Banks has no rival. Time and again, Banks has proven its design, engineering and manufacturing prowess in whole vehicle development/modification, including Project Sidewinder, Banks/GMC Syclone and the big block twin-turbo Pontiac Firebird.
Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.