INDUSTRIES FIRST INTERLOCKING BORGWARNER S400 DOWNPIPE FLANGE, NO MORE WILL YOU HAVE TO WORRY ABOUT A LEAKING HARD TO LINE UP DOWNPIPE, WE DESIGNED THIS FLANGE EXTRA THICK TO ENSURE IT DOES NOT WARP WHILE WELDING, THESE FLANGES ARE MADE RIGHT HERE IN THE USA AT OUR FACILITY WITH AMERICAN SOURCED MATERIAL
