Choose Options Jamo Performance Exhaust 4-1 Merge Collector (4) MSRP: $95.08 - $124.39 4-1 Merge Collector Material: 304 Stainless Steel Sizes: 4 x 1.5" ID - 3" OD, 10" OAL 4 x 1.625" ID - 3" OD, 11" OAL 4 x 1.75" ID - 3" OD, 11.5" OAL 4 x 1.875" ID - 3.5" OD, 10.75" OAL 4 x 2" ID - 3.5" OD, 11.5" OAL 4 x 2.125" ID - 4" OD,... Choose Options Compare