diff --git a/config/charts/inferencepool/README.md b/config/charts/inferencepool/README.md
index 769b964fa..013a1f2b3 100644
--- a/config/charts/inferencepool/README.md
+++ b/config/charts/inferencepool/README.md
@@ -247,6 +247,22 @@ The following table list the configurable parameters of the chart.
 | `inferenceExtension.tracing.otelExporterEndpoint`          | OpenTelemetry collector endpoint.                                                                                                                                                                                                                  |
 | `inferenceExtension.tracing.sampling.sampler`              | The trace sampler to use. Currently, only `parentbased_traceidratio` is supported. This sampler respects the parent span’s sampling decision when present, and applies the configured ratio for root spans.                                        |
 | `inferenceExtension.tracing.sampling.samplerArg`           | Sampler-specific argument. For `parentbased_traceidratio`, this defines the base sampling rate for new traces (root spans), as a float string in the range [0.0, 1.0]. For example, "0.1" enables 10% sampling.                                    |
+| `inferenceExtension.volumes`                               | List of volumes to mount in the EPP deployment as free-form YAML. Optional.                                                                                                                                                                       |
+| `inferenceExtension.volumeMounts`                          | List of volume mounts for the EPP container as free-form YAML. Optional.                                                                                                                                                                          |
+| `inferenceExtension.sidecar.enabled`                       | Enables or disables the sidecar container in the EPP deployment. Defaults to `false`.                                                                                                                                                             |
+| `inferenceExtension.sidecar.name`                          | Name of the sidecar container. Required when the sidecar is enabled.                                                                                                                                                                              |
+| `inferenceExtension.sidecar.image`                         | Image for the sidecar container. Required when the sidecar is enabled.                                                                                                                                                                            |
+| `inferenceExtension.sidecar.imagePullPolicy`               | Image pull policy for the sidecar container. Possible values: `Always`, `IfNotPresent`, or `Never`. Defaults to `IfNotPresent`.                                                                                                                  |
+| `inferenceExtension.sidecar.command`                       | Command to run in the sidecar container as a single string. Optional.                                                                                                                                                                             |
+| `inferenceExtension.sidecar.args`                          | Arguments to pass to the command in the sidecar container as a list of strings. Optional.                                                                                                                                                         |
+| `inferenceExtension.sidecar.env`                           | Environment variables to set in the sidecar container as free-form YAML. Optional.                                                                                                                                                                |
+| `inferenceExtension.sidecar.ports`                         | List of ports to expose for the sidecar container. Optional.                                                                                                                                                                                      |
+| `inferenceExtension.sidecar.livenessProbe`                 | Liveness probe configuration for the sidecar container. Optional.                                                                                                                                                                                 |
+| `inferenceExtension.sidecar.readinessProbe`                | Readiness probe configuration for the sidecar container. Optional.                                                                                                                                                                                |
+| `inferenceExtension.sidecar.resources`                     | Resource limits and requests for the sidecar container. Optional.                                                                                                                                                                                 |
+| `inferenceExtension.sidecar.volumeMounts`                  | List of volume mounts for the sidecar container. Optional.                                                                                                                                                                                        |
+| `inferenceExtension.sidecar.volumes`                       | List of volumes for the sidecar container. Optional.                                                                                                                                                                                              |
+| `inferenceExtension.sidecar.configMapData`                 | Custom key-value pairs to be included in a ConfigMap created for the sidecar container. Only used when `inferenceExtension.sidecar.enabled` is `true`. Optional.                                                                                           |
 | `provider.name`                                            | Name of the Inference Gateway implementation being used. Possible values: [`none`, `gke`, or `istio`]. Defaults to `none`.                                                                                                                         |
 | `provider.gke.autopilot`                                   | Set to `true` if the cluster is a GKE Autopilot cluster. This is only used if `provider.name` is `gke`. Defaults to `false`.                                                                                                                       |
 
diff --git a/config/charts/inferencepool/templates/epp-config.yaml b/config/charts/inferencepool/templates/epp-config.yaml
index e082db793..f34d5cf21 100644
--- a/config/charts/inferencepool/templates/epp-config.yaml
+++ b/config/charts/inferencepool/templates/epp-config.yaml
@@ -64,14 +64,14 @@ data:
   {{- end }}
   
 ---
-{{- if .Values.inferenceExtension.sidecar.enabled }}
+{{- if and .Values.inferenceExtension.sidecar.enabled .Values.inferenceExtension.sidecar.configMapData }}
 apiVersion: v1
 kind: ConfigMap
 metadata:
-  name: {{ .Values.inferenceExtension.sidecar.configMap.name }}
+  name: {{ include "gateway-api-inference-extension.name" . }}-sidecar
   namespace: {{ .Release.Namespace }}
 data:
-  {{- .Values.inferenceExtension.sidecar.configMap.data | toYaml | nindent 2 }}
+  {{- .Values.inferenceExtension.sidecar.configMapData | toYaml | nindent 2 }}
 {{- end }}
 ---
 {{- if .Values.inferenceExtension.latencyPredictor.enabled }}
diff --git a/config/charts/inferencepool/templates/epp-deployment.yaml b/config/charts/inferencepool/templates/epp-deployment.yaml
index f792874f2..b58c3b782 100644
--- a/config/charts/inferencepool/templates/epp-deployment.yaml
+++ b/config/charts/inferencepool/templates/epp-deployment.yaml
@@ -182,8 +182,14 @@ spec:
         volumeMounts:
         - name: plugins-config-volume
           mountPath: "/config"
+        {{- if .Values.inferenceExtension.volumeMounts }}
+        {{- toYaml .Values.inferenceExtension.volumeMounts | nindent 8 }}
+        {{- end }}
       {{- include "gateway-api-inference-extension.latencyPredictor.containers" . | nindent 6 }}
       volumes:
+      {{- if .Values.inferenceExtension.volumes }}
+      {{- toYaml .Values.inferenceExtension.volumes | nindent 6 }}
+      {{- end }}
       {{- if .Values.inferenceExtension.sidecar.volumes }}
       {{- tpl (toYaml .Values.inferenceExtension.sidecar.volumes) $ | nindent 6 }}
       {{- end }}