diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index 0fc2b54e..c5660899 100755
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -3871,10 +3871,16 @@
     "fwLevelTrimMechanics": {
         "message": "Fixed Wing Level Trim"
     },
-    "d_boost_factor": {
-        "message": "D-Boost Factor"
+    "d_boost_min": {
+        "message": "D-Boost Min. Scale"
     },
-    "d_boost_factor_help": {
+    "d_boost_min_help": {
+        "message": "Defines the max allowed Dterm attenuation during stick acceleration phase. Value 1.0 mean Dterm is not attenuate. 0.5 mean it's allowed to shrink by half. Lower values result in faster response during fast stick movement."
+    },
+    "d_boost_max": {
+        "message": "D-Boost Max. Scale"
+    },
+    "d_boost_max_help": {
         "message": "Defines the maximum Dterm boost when maximum angular acceleration is reached. 1.0 means D-Boost is disabled, 2.0 means Dterm is allowed to grow by 100%. Values between 1.5 and 1.7 are usually the sweet spot."
     },
     "d_boost_max_at_acceleration": {
diff --git a/js/defaults_dialog.js b/js/defaults_dialog.js
index 08edd9bd..890fd473 100644
--- a/js/defaults_dialog.js
+++ b/js/defaults_dialog.js
@@ -214,7 +214,11 @@ helper.defaultsDialog = (function () {
                 value: 10
             },
             {
-                key: "d_boost_factor",
+                key: "d_boost_min",
+                value: 1
+            },
+            {
+                key: "d_boost_max",
                 value: 1
             },
             {
@@ -392,7 +396,11 @@ helper.defaultsDialog = (function () {
                 value: 10
             },
             {
-                key: "d_boost_factor",
+                key: "d_boost_min",
+                value: 1
+            },
+            {
+                key: "d_boost_max",
                 value: 1
             },
             {
diff --git a/tabs/pid_tuning.html b/tabs/pid_tuning.html
index daa1fe6a..b52efe32 100755
--- a/tabs/pid_tuning.html
+++ b/tabs/pid_tuning.html
@@ -338,13 +338,6 @@
             <div class="cf_column">
                 <table class="settings-table settings-table--filtering">
                     <tbody>
-                        <tr>
-                            <th data-i18n="itermRelax"></th>
-                            <td>
-                                <select data-setting="mc_iterm_relax" />
-                                <div class="helpicon cf_tip" data-i18n_title="itermRelaxHelp"></div>
-                            </td>
-                        </tr>
                         <tr>
                             <th data-i18n="itermRelaxCutoff"></th>
                             <td>
@@ -387,10 +380,17 @@
                 <table class="settings-table settings-table--filtering">
                     <tbody>
                         <tr>
-                            <th data-i18n="d_boost_factor"></th>
+                            <th data-i18n="d_boost_min"></th>
                             <td>
-                                <input data-setting="d_boost_factor" class="rate-tpa_input" />
-                                <div class="helpicon cf_tip" data-i18n_title="d_boost_factor_help"></div>
+                                <input data-setting="d_boost_min" class="rate-tpa_input" />
+                                <div class="helpicon cf_tip" data-i18n_title="d_boost_min_help"></div>
+                            </td>
+                        </tr>
+                        <tr>
+                            <th data-i18n="d_boost_max"></th>
+                            <td>
+                                <input data-setting="d_boost_max" class="rate-tpa_input" />
+                                <div class="helpicon cf_tip" data-i18n_title="d_boost_max_help"></div>
                             </td>
                         </tr>
                         <tr>