DTR Design B-Series 4-2-1 street header CRX EF lean k series DTR Design (imported)304 stainless B-series

DTR Design (imported)304 stainless  B-series 4-2-1  two step header 44mm - 48mm to 50mm secondary with a standard 64mm donut gasket exit

multi piece

304 Stainless using laser cut flange and stainless steel spring hardware

multi step 44mm - 48mm header

Available for B18-B20 and high output B20 (54mm secondary) 4-2-1 design is great for midrange and top end power with maximum ground clearance for street driven longevity

DTR Design B-Series 4-2-1 street header CRX EF lean k series DTR Design (imported)304 stainless B-seriesDTR Design (imported)304 stainless B series 4 2 1 two step header 44mm 48mm to 50mm secondary with a standard 64mm donut gasket exit. Available for B18 B20 and high output B20 (54mm secondary) 4 2 1 design is great for midrange and top end power with maximum ground clearance for street driven longevity. AC PS compatible