ZZP 3" Exhaust Cone Insert Sound Reducer Other-Platforms To use the oversized valves

To use the oversized valves you will need to have the valve seat cut larger to take advantage of the larger diameter valves

can be found here

critical clearances

Every other company or brand needs to be drilled in

ZZP 3" Exhaust Cone Insert Sound Reducer Other-Platforms To use the oversized valvesThis cone insert can be fitted inside your existing exhaust to bring down the volume without the need for extra resonators or mufflers. This insert fits directly into your exhaust, these slip fit in but you'll want to either use the integrated M8 nut or tack weld them in. One cone will typically result in a 1 3 dB reduction of volume. 100% T 304 stainless steel construction Compact size fits all racing applications Ultra lightweight less that 1 2 lb.