diff --git a/src/feeOracle.ts b/src/feeOracle.ts
index f0c29d3..6e04d64 100644
--- a/src/feeOracle.ts
+++ b/src/feeOracle.ts
@@ -46,17 +46,21 @@ export abstract class TornadoFeeOracle implements ITornadoFeeOracle {
    * Estimate gas price, gas limit and l1Fee for sidechain (if exists)
    * @param {TransactionData} [tx] Transaction data in web3 / ethers format
    * @param {TxType} [txType=other] Tornado transaction type: withdrawal by user, withdrawal by relayer or 'other'
+   * @param {number} [bumpGasLimitPercent] Gas limit bump percent to prioritize transaction (recenlty used)
+   * @param {number} [bumpGasPricePercent] Gas price bump percent to prioritize transaction (rarely used)
    * @param {LegacyGasPriceKey} [speed=fast] Preferred transaction speed, if uses legacy gas (before EIP-1559)
    * @returns {Promise<GetGasParamsRes>} Object with fields 'gasPrice', 'gasLimit' and 'l1Fee'
    */
   async getGasParams(
     tx?: TransactionData,
     txType: TxType = 'other',
+    bumpGasLimitPercent?: number,
+    bumpGasPricePercent?: number,
     speed: LegacyGasPriceKey = 'fast',
   ): Promise<GetGasParamsRes> {
     const [gasPrice, gasLimit, l1Fee] = await Promise.all([
-      this.getGasPrice(txType, speed),
-      this.getGasLimit(tx, txType),
+      this.getGasPrice(txType, speed, bumpGasPricePercent),
+      this.getGasLimit(tx, txType, bumpGasLimitPercent),
       this.fetchL1OptimismFee(tx),
     ]);
 
@@ -67,15 +71,25 @@ export abstract class TornadoFeeOracle implements ITornadoFeeOracle {
    * Estimates next block gas for signed, unsigned or incomplete Tornado transaction
    * @param {TransactionData} [tx] Transaction data in web3 / ethers format
    * @param {TxType} [txType=other] Tornado transaction type: withdrawal by user, withdrawal by relayer or 'other'
+   * @param {number} [bumpGasLimitPercent] Gas limit bump percent to prioritize transaction (recenlty used)
+   * @param {number} [bumpGasPricePercent] Gas price bump percent to prioritize transaction (rarely used)
    * @param {LegacyGasPriceKey} [speed=fast] Preferred transaction speed, if uses legacy gas (before EIP-1559)
    * @returns {Promise<HexadecimalStringifiedNumber>} Gas value in WEI (hex-format)
    */
   async getGas(
     tx?: TransactionData,
     txType: TxType = 'other',
+    bumpGasLimitPercent?: number,
+    bumpGasPricePercent?: number,
     speed: LegacyGasPriceKey = 'fast',
   ): Promise<HexadecimalStringifiedNumber> {
-    const { gasPrice, gasLimit, l1Fee } = await this.getGasParams(tx, txType, speed);
+    const { gasPrice, gasLimit, l1Fee } = await this.getGasParams(
+      tx,
+      txType,
+      bumpGasLimitPercent,
+      bumpGasPricePercent,
+      speed,
+    );
     const gas = BigNumber.from(gasPrice).mul(gasLimit).add(l1Fee);
 
     return gas.toHexString();
@@ -84,8 +98,8 @@ export abstract class TornadoFeeOracle implements ITornadoFeeOracle {
   /**
    * Estimate next block gas price
    * @param {TxType} type Tornado transaction type (to select correct default bump percent)
-   * @param {LegacyGasPriceKey} speed Preferred transaction speed, if uses legacy gas (before EIP-1559)
-   * @param {number} bumpPercent Gas bump percent to prioritize transaction
+   * @param {LegacyGasPriceKey} [speed=fast] Preferred transaction speed, if uses legacy gas (before EIP-1559)
+   * @param {number} [bumpPercent=0] Gas bump percent to prioritize transaction
    * @returns {Promise<GasPriceParams>} Estimated gas price info in WEI (hexed) - legacy object with gasPrice property or
    * EIP-1559 object with maxFeePerGas and maxPriorityFeePerGas properties
    */
diff --git a/src/types.ts b/src/types.ts
index fc77731..3457859 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -35,8 +35,20 @@ export interface TransactionData {
 }
 
 export interface ITornadoFeeOracle {
-  getGasParams: (tx?: TransactionData, txType?: TxType, speed?: LegacyGasPriceKey) => Promise<GetGasParamsRes>;
-  getGas: (tx?: TransactionData, type?: TxType) => Promise<HexadecimalStringifiedNumber>;
+  getGasParams: (
+    tx?: TransactionData,
+    txType?: TxType,
+    bumpGasLimitPercent?: number,
+    bumpGasPricePercent?: number,
+    speed?: LegacyGasPriceKey,
+  ) => Promise<GetGasParamsRes>;
+  getGas: (
+    tx?: TransactionData,
+    type?: TxType,
+    bumpGasLimitPercent?: number,
+    bumpGasPricePercent?: number,
+    speed?: LegacyGasPriceKey,
+  ) => Promise<HexadecimalStringifiedNumber>;
   getGasPriceParams: (type?: TxType, speed?: LegacyGasPriceKey, bumpPercent?: number) => Promise<GasPriceParams>;
   getGasPrice: (
     type?: TxType,