diff --git a/Cargo.lock b/Cargo.lock
index 40f811e3e..d236bf283 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6625,6 +6625,15 @@ version = "2.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f52b00d39961fc5b2736ea853c9cc86238e165017a493d1d5c8eac6bdc4cc273"
 
+[[package]]
+name = "memmap2"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "744133e4a0e0a658e1374cf3bf8e415c4052a15a111acd372764c55b4177d490"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.9.1"
@@ -9792,6 +9801,7 @@ dependencies = [
  "fs-err",
  "futures",
  "governor 0.10.4",
+ "memmap2",
  "monitoring",
  "prost 0.13.5",
  "reqwest",
diff --git a/crates/extractors/solana/Cargo.toml b/crates/extractors/solana/Cargo.toml
index 64a0e82ff..9f1b79666 100644
--- a/crates/extractors/solana/Cargo.toml
+++ b/crates/extractors/solana/Cargo.toml
@@ -19,6 +19,7 @@ futures.workspace = true
 fs-err.workspace = true
 governor.workspace = true
 monitoring = { path = "../../core/monitoring" }
+memmap2 = "0.9.9"
 reqwest.workspace = true
 schemars = { workspace = true, optional = true }
 serde.workspace = true
diff --git a/crates/extractors/solana/src/of1_client.rs b/crates/extractors/solana/src/of1_client.rs
index e4eb2cbe0..e5a15e4f6 100644
--- a/crates/extractors/solana/src/of1_client.rs
+++ b/crates/extractors/solana/src/of1_client.rs
@@ -280,9 +280,8 @@ pub(crate) fn stream(
             }
 
             let dest = car_directory.join(local_car_filename(epoch));
-
-            let buf_reader = match tokio::fs::File::open(&dest).await.map(tokio::io::BufReader::new) {
-                Ok(reader) => reader,
+            let file = match fs_err::File::open(dest) {
+                Ok(f) => f,
                 Err(e) => {
                     car_manager_tx
                         .send(CarManagerMessage::FileProcessed(epoch))
@@ -292,7 +291,20 @@ pub(crate) fn stream(
                     return;
                 }
             };
-            let mut node_reader = car_parser::node::NodeReader::new(buf_reader);
+            // SAFETY: The file is not modified/deleted while the mmap is in use.
+            let mmap = match unsafe { memmap2::Mmap::map(&file) } {
+                Ok(mmap) => mmap,
+                Err(e) => {
+                    car_manager_tx
+                        .send(CarManagerMessage::FileProcessed(epoch))
+                        .await
+                        .expect("receiver not dropped");
+                    yield Err(e.into());
+                    return;
+                }
+            };
+
+            let mut node_reader = car_parser::node::NodeReader::new(&mmap[..]);
 
             while let Some(block) = read_entire_block(&mut node_reader, prev_blockhash).await.transpose() {
                 let block = match block {