Product DescriptionLooney Tuned Dual Exhaust for the YFZ 450 98dbs wide open & 93dbs w/ quiet cores. All while pumping out gains of 7hp on bottom 8hp through the mid and 12hp peak! The pipes are purge tig welded out of 304 stainless and the silencers constructed of 6061 aluminum with billet end caps. Kit includes: 3 piece stainless steel header set. 2 silencers with spark arrestors. Recovery bottle relocating braket and jet kit. Complete installation instructions. |