NGR Turbo Filter Replacement Cap - Blue (Fits 3in/2.5in Turbo Filters) K2 Industries These are universal M12x1

These are universal M12x1

prevent temperature hunting

We tested the new RBC (2006-2009 Civic Si) intake manifold (Honda Part #: 17100-RRB-A00) and were able to make 230whp and 160tq out of a completely internally stock K20A2 engine

Design: Extended with removable spike accent

Direct fit design means no cutting or welding required

NGR Turbo Filter Replacement Cap - Blue (Fits 3in/2.5in Turbo Filters) K2 Industries These are universal M12x1CUSTOM STYLE UPGRADE Give your engine bay a fresh, personalized look with the NEW NGR Turbo Filter Replacement Caps. Precision machined from 6061 aluminum, these caps deliver the same clean, high end aesthetic found on all NGR Turbo Filters. Choose from a variety of anodized colors to match your build and elevate your under hood presentation. UNIVERSAL SIZE COMPATIBILITY Designed specifically for NGR Turbo Filters, each replacement cap fits 3in, 4in,