diff --git a/src/pages/ethereum/execution/gas-profiler/SimulatePage.types.ts b/src/pages/ethereum/execution/gas-profiler/SimulatePage.types.ts
index 660c29bd4..891bfe77c 100644
--- a/src/pages/ethereum/execution/gas-profiler/SimulatePage.types.ts
+++ b/src/pages/ethereum/execution/gas-profiler/SimulatePage.types.ts
@@ -300,8 +300,21 @@ export const GAS_PARAMETER_GROUPS: GasParameterGroup[] = [
       { key: 'PC_BLS12_G2MSM_MUL_GAS', label: 'BLS12 G2MSM /Point', min: 0, max: 100000, step: 1000 },
     ],
   },
-  // NOTE: Intrinsic gas (TX_BASE, TX_CREATE, TX_DATA_ZERO, TX_DATA_NONZERO) cannot be
-  // customized - it's calculated at the protocol level before EVM execution begins.
+  {
+    name: 'Intrinsic Gas',
+    color: '#d946ef', // fuchsia
+    parameters: [
+      { key: 'TX_BASE', label: 'TX Base', min: 0, max: 100000, step: 1000 },
+      { key: 'TX_CREATE_BASE', label: 'TX Create', min: 0, max: 200000, step: 1000 },
+      { key: 'TX_DATA_ZERO', label: 'Calldata Zero', min: 0, max: 50, step: 1 },
+      { key: 'TX_DATA_NONZERO', label: 'Calldata Non-Zero', min: 0, max: 200, step: 1 },
+      { key: 'TX_ACCESS_LIST_ADDR', label: 'Access List Addr', min: 0, max: 10000, step: 100 },
+      { key: 'TX_ACCESS_LIST_KEY', label: 'Access List Key', min: 0, max: 10000, step: 100 },
+      { key: 'TX_INIT_CODE_WORD', label: 'Init Code Word', min: 0, max: 20, step: 1 },
+      { key: 'TX_FLOOR_PER_TOKEN', label: 'Floor Per Token', min: 0, max: 50, step: 1 },
+      { key: 'TX_AUTH_COST', label: 'Auth Cost', min: 0, max: 100000, step: 1000 },
+    ],
+  },
 ];
 
 /**
diff --git a/src/pages/ethereum/execution/gas-profiler/components/BlockSimulationResultsV2/BlockSimulationResultsV2.tsx b/src/pages/ethereum/execution/gas-profiler/components/BlockSimulationResultsV2/BlockSimulationResultsV2.tsx
index 65af0689c..6ad89dc60 100644
--- a/src/pages/ethereum/execution/gas-profiler/components/BlockSimulationResultsV2/BlockSimulationResultsV2.tsx
+++ b/src/pages/ethereum/execution/gas-profiler/components/BlockSimulationResultsV2/BlockSimulationResultsV2.tsx
@@ -414,7 +414,9 @@ function OpcodeRow({ op, maxGas }: { op: OpcodeRowData; maxGas: number }): JSX.E
 
   return (
     <Tooltip
-      title={op.opcode.startsWith('PC_') ? op.opcode.slice(3) : op.opcode}
+      title={
+        op.opcode.startsWith('PC_') ? op.opcode.slice(3) : op.opcode.startsWith('TX_') ? op.opcode.slice(3) : op.opcode
+      }
       width="w-auto"
       description={
         <div className="grid grid-cols-[auto_1fr] gap-x-3 gap-y-1 whitespace-nowrap">
@@ -443,7 +445,11 @@ function OpcodeRow({ op, maxGas }: { op: OpcodeRowData; maxGas: number }): JSX.E
         <div className="flex items-center gap-2">
           <div className="size-2 shrink-0 rounded-full" style={{ backgroundColor: op.categoryColor }} />
           <span className="font-mono text-xs font-semibold text-foreground">
-            {op.opcode.startsWith('PC_') ? op.opcode.slice(3) : op.opcode}
+            {op.opcode.startsWith('PC_')
+              ? op.opcode.slice(3)
+              : op.opcode.startsWith('TX_')
+                ? op.opcode.slice(3)
+                : op.opcode}
           </span>
           {hasCountChange && (
             <span className="font-mono text-[11px] text-muted tabular-nums">
@@ -553,7 +559,8 @@ function OpcodeBreakdownSection({
                 <div className="size-2.5 rounded-full" style={{ backgroundColor: cat.color }} />
                 <span className="text-xs font-semibold text-foreground">{cat.name}</span>
                 <span className="text-xs text-muted">
-                  ({cat.opcodes.length} {cat.name === 'Precompiles' ? 'contract' : 'opcode'}
+                  ({cat.opcodes.length}{' '}
+                  {cat.name === 'Precompiles' ? 'contract' : cat.name === 'Intrinsic Gas' ? 'parameter' : 'opcode'}
                   {cat.opcodes.length !== 1 ? 's' : ''})
                 </span>
                 <div className="flex-1" />
diff --git a/src/pages/ethereum/execution/gas-profiler/components/GasScheduleDrawer/GasScheduleDrawer.tsx b/src/pages/ethereum/execution/gas-profiler/components/GasScheduleDrawer/GasScheduleDrawer.tsx
index 904176bf2..b2053c823 100644
--- a/src/pages/ethereum/execution/gas-profiler/components/GasScheduleDrawer/GasScheduleDrawer.tsx
+++ b/src/pages/ethereum/execution/gas-profiler/components/GasScheduleDrawer/GasScheduleDrawer.tsx
@@ -9,6 +9,7 @@ import { getOpcodeCategory, CATEGORY_COLORS } from '../../utils/opcodeUtils';
 
 /** Category ordering for display */
 const CATEGORY_ORDER = [
+  'Intrinsic Gas',
   'Storage',
   'Transient Storage',
   'Contract',
@@ -325,7 +326,7 @@ export function GasScheduleDrawer({
                         <MagnifyingGlassIcon className="size-4 text-muted" />
                         <input
                           type="text"
-                          placeholder="Search opcodes..."
+                          placeholder="Search..."
                           value={searchQuery}
                           onChange={e => setSearchQuery(e.target.value)}
                           className="w-full border-0 bg-transparent text-sm text-foreground placeholder:text-muted focus:ring-0 focus:outline-hidden"
diff --git a/src/pages/ethereum/execution/gas-profiler/utils/opcodeUtils.ts b/src/pages/ethereum/execution/gas-profiler/utils/opcodeUtils.ts
index 33375e6af..27dcd23c2 100644
--- a/src/pages/ethereum/execution/gas-profiler/utils/opcodeUtils.ts
+++ b/src/pages/ethereum/execution/gas-profiler/utils/opcodeUtils.ts
@@ -141,6 +141,7 @@ export const CATEGORY_COLORS: Record<string, string> = {
   'Precompiles (Fixed)': '#10b981', // emerald
   'Precompiles (Variable)': '#059669', // emerald-600
   Precompiles: '#10b981', // emerald - used for opcode breakdown chart
+  'Intrinsic Gas': '#d946ef', // fuchsia
   Other: '#9ca3af', // gray-400
 };
 
@@ -190,6 +191,11 @@ export function isGasParameter(name: string): boolean {
     return true;
   }
 
+  // Intrinsic gas parameters (TX_BASE, TX_DATA_ZERO, etc.)
+  if (name.startsWith('TX_')) {
+    return true;
+  }
+
   // Known standalone parameters (not opcodes)
   const standaloneParameters = [
     'MEMORY', // Memory expansion cost
@@ -214,6 +220,9 @@ export function getOpcodeCategory(opcode: string): string {
   // Direct lookup first
   if (OPCODE_CATEGORIES[opcode]) return OPCODE_CATEGORIES[opcode];
 
+  // Intrinsic gas entries (TX_BASE, TX_DATA_ZERO, etc.)
+  if (opcode.startsWith('TX_')) return 'Intrinsic Gas';
+
   // Precompile gas entries (PC_SHA256, PC_ECREC, etc.)
   if (opcode.startsWith('PC_')) return 'Precompiles';
 
@@ -276,6 +285,7 @@ const HEX_TO_TAILWIND: Record<string, { bg: string; hover: string }> = {
   '#0ea5e9': { bg: 'bg-sky-500', hover: 'hover:bg-sky-400' },
   '#10b981': { bg: 'bg-emerald-500', hover: 'hover:bg-emerald-400' },
   '#059669': { bg: 'bg-emerald-600', hover: 'hover:bg-emerald-500' },
+  '#d946ef': { bg: 'bg-fuchsia-500', hover: 'hover:bg-fuchsia-400' },
   '#9ca3af': { bg: 'bg-gray-400', hover: 'hover:bg-gray-300' },
 };