Designed to fit OE and DEP front pipes. The silencers are manufactured with a polished aluminium outer canister and amild steel internal perforated core, surrounded with a high temperatureEglass packing. All silencers have been designed as a performanceenhancing product for optimum power increase, we advise this to be usedwith a DEP front pipe. Our silencers are easily repackable.made in EnglandSilencer