diff --git a/playground/components.go b/playground/components.go
index ee70830..8bb73ac 100644
--- a/playground/components.go
+++ b/playground/components.go
@@ -168,7 +168,11 @@ type BProxy struct {
 func (f *BProxy) Run(service *Service, ctx *ExContext) {
 	peers := []string{}
 	for _, peer := range f.Peers {
-		peers = append(peers, Connect(peer, "authrpc"))
+		if strings.HasPrefix(peer, "http") {
+			peers = append(peers, peer)
+		} else {
+			peers = append(peers, Connect(peer, "authrpc"))
+		}
 	}
 	service.WithImage("ghcr.io/flashbots/bproxy").
 		WithTag("v0.0.91").
@@ -188,6 +192,7 @@ func (f *BProxy) Run(service *Service, ctx *ExContext) {
 			"--authrpc-peers", strings.Join(peers, ","),
 			"--authrpc-remove-backend-from-peers",
 			"--authrpc-use-priority-queue",
+			"--authrpc-extra-mirrored-jrpc-methods", "eth_sendRawTransaction",
 		).
 		WithArtifact("/data/jwtsecret", "jwtsecret")
 
diff --git a/playground/recipe_opstack.go b/playground/recipe_opstack.go
index d0b1a0e..8201f71 100644
--- a/playground/recipe_opstack.go
+++ b/playground/recipe_opstack.go
@@ -12,6 +12,10 @@ type OpRecipe struct {
 	// rollup-boost on the sequencer and uses this URL as the external builder.
 	externalBuilder string
 
+	// authrpcPeers is a list of additional peers to connect to the bproxy service.
+	// Each peer can be specified multiple times using the --authrpc-peer flag.
+	authrpcPeers []string
+
 	// whether to enable the latest fork isthmus and when
 	enableLatestFork *uint64
 
@@ -49,6 +53,7 @@ func (o *OpRecipe) Description() string {
 func (o *OpRecipe) Flags() *flag.FlagSet {
 	flags := flag.NewFlagSet("opstack", flag.ContinueOnError)
 	flags.StringVar(&o.externalBuilder, "external-builder", "", "External builder URL")
+	flags.StringSliceVar(&o.authrpcPeers, "authrpc-peers", []string{}, "Peers for bproxy (can be specified multiple times)")
 	flags.Var(&nullableUint64Value{&o.enableLatestFork}, "enable-latest-fork", "Enable latest fork isthmus (nil or empty = disabled, otherwise enabled at specified block)")
 	flags.Uint64Var(&o.blockTime, "block-time", defaultOpBlockTimeSeconds, "Block time to use for the rollup")
 	flags.Uint64Var(&o.batcherMaxChannelDuration, "batcher-max-channel-duration", 2, "Maximum channel duration to use for the batcher")
@@ -109,6 +114,8 @@ func (o *OpRecipe) Apply(ctx *ExContext, artifacts *Artifacts) *Manifest {
 		peers = append(peers, "flashblocks-rpc")
 	}
 
+	peers = append(peers, o.authrpcPeers...)
+
 	// Only enable bproxy if flashblocks is enabled (since flashblocks-rpc is the only service that needs it)
 	if o.flashblocks {
 		svcManager.AddService("bproxy", &BProxy{