lol yall should search more often. Our headers r casted onto the block. so we just run catalytic converters on both sides of the engine and down towards a very restrictive j-pipe and then into a third cat. The options we have for our 7th gen accords, and 3rd gen TLs is the E-shift procats, which turned out to be a POS. But the successful mods for us r the ATLP Race pipe, Richies pre-cat deletes which eliminates the cats with straight pipes etc, and then a hi flow third cat, and a less restrictive j-pipe. only thing similar to headers for our v6s'.