2017-2018 GM DURAMAX V8-6.6L / AFE 46-20334-B BladeRunner Intercooler Tubes Hot and Cold Side * Please call for availability 2017-2018 GM DURAMAX V8-6.6L / AFE 46-20334-B BladeRunner Intercooler Tubes Hot and Cold Side Outflows factory I/C tubes by up to 38% for improved performance TIG-welded, 3" & 3 1/2" mandrel-bent aluminum tubing for... MSRP: Was: Now: $630.00 Add to Cart The item has been added