SRS EXHAUST SYSTEMS 4-2-1 HEADER 2.5" TODA REPLICA (HONDA B-ENGINES)SRS manifold 4 2 1 2. 5 inch rvs "Toda" A "Toda" manifold for a fraction of the price on your Civic, CRX or Integra? This is possible with this SRS manifold 4 2 1 with 2. 5 inch connection, made of stainless steel. This SRS 4 2 1 manifold is a replica of the well known Toda manifolds. The 4 2 1 design gives you enough ground clearance so you do not have to be afraid to break your manifold at a speed bump. 4 2 1 = More power at low rpm Including