No choke points or bottle necks. All components are high quality 304 stainless. Tubing is made of. 065 304 stainless.
2-1 VBand Merge Collector 3.5" to 3" .065 304 stainless tig welded turbo exhaust
2-1 VBand Merge Collector 2.5" to 3" .065 304 stainless tig welded turbo exhaust
2-1 VBand Merge Collector 3" to 4" .075 304 stainless tig weld turbo exhaust
