---
product_id: 717239
title: "40357 ProXS Universal Performance Muffler 2.25\" Offset Inlet / 2.25\" Center Outlet 4\" x 9.5\" Oval x 14\" Long body 19\" Overall Length Reversible Design T-304 Stainless Steel"
brand: "borla"
price: "B/.493"
currency: PAB
in_stock: true
reviews_count: 12
category: "Borla"
url: https://www.desertcart.com.pa/products/717239-40357-proxs-universal-performance-muffler-2-25-offset-inlet-2
store_origin: PA
region: Panama
---

# Compact 19" Overall Length Reversible Offset/Center Design T-304 Stainless Steel Durability 40357 ProXS Universal Performance Muffler 2.25" Offset Inlet / 2.25" Center Outlet 4" x 9.5" Oval x 14" Long body 19" Overall Length Reversible Design T-304 Stainless Steel

**Brand:** borla
**Price:** B/.493
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your ride’s growl with precision-engineered power!

## Quick Answers

- **What is this?** 40357 ProXS Universal Performance Muffler 2.25" Offset Inlet / 2.25" Center Outlet 4" x 9.5" Oval x 14" Long body 19" Overall Length Reversible Design T-304 Stainless Steel by borla
- **How much does it cost?** B/.493 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/717239-40357-proxs-universal-performance-muffler-2-25-offset-inlet-2)

## Best For

- borla enthusiasts

## Why This Product

- Trusted borla brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Oval Body Design:** 14" x 4" x 9.5" profile balances aggressive sound with space-saving form.
- • **Built to Last with T-304 Stainless Steel:** Premium corrosion resistance for enduring performance and sleek looks.
- • **Made in the USA with All-Welded Construction:** Quality craftsmanship ensures durability and a professional finish.
- • **Reversible Design for Versatile Installation:** Adaptable offset/center configuration to fit your custom setup perfectly.
- • **Precision Fit with 2.25" Offset Inlet & Center Outlet:** Engineered for seamless weld-on installation on metric-sized exhausts.

## Overview

The BORLA 40357 ProXS Universal Performance Muffler is a high-quality, T-304 stainless steel exhaust upgrade designed for trucks with 2.25" inlet/outlet tubing. Featuring a compact 19" overall length and a reversible offset/center design, it offers a deep, mellow exhaust tone that enhances low-end torque while reducing back pressure. Made in the USA with all-welded construction, this muffler delivers durable performance and a sleek, aggressive sound without overwhelming cabin noise.

## Description

Borla Pro XS Muffler; Center/Offset; 2.25 in. Center Inlet; 2.25 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in. OAL; Unnotched; T-304 Stainless Steel;

Review: Nice Sound on 2005 Tacoma Xrunner - I bought this muffler (Borla 40357) for my 2005 Toyota Tacoma Xrunner. It is 2.25' offset/center on the inlet/outlet. When I first got it out of the box, I was very surprised how heavy it was (probably 7-9 pounds). It's appears to be very well constructed and of very high quality. I ordered the 2.25' version after reading that Toyota uses metric size tubing and the 05-08 Tacomas are closer to the 2.25' diameter, while the 09+ models are closer to a 2.5' diameter. I had it installed at a local muffler shop and had it installed. He said an offset/offset inlet outlet would have fit better, but he made it work. Upon initial startup, (the rest of my exhaust is completely stock) I couldn't tell a lot of difference between the 22 inch long chambered stock muffler and this 14 inch long straight through muffler. I've put about 500 miles on it in the first 3 weeks of having it. There is some noticeable resonance in the cabin from 2300rpms to about 2700rpms when casually accelerating. When you're coasting or maintaining speed, it is nearly identical in volume to the stock muffler. On the highway, I notice a little bit of drone/resonance, but it's not bad. My truck isn't very quiet in the cab to begin with, and I've ordered some sound deadening mat to counter the road noise and small amount of resonance. In regards to sound , this muffler sounds great. It's very deep and rich, mellow under mild acceleration but really wakes up when you get on it. There is no raspy sound to it and no loud popping, just a very mellow gurgle when decelerating. In regards to performance, it feels like it has a little more low end torque, and when decelerating, I've noticed the back pressure is greatly reduced (probably half of what it was). Overall I'm very happy with my purchase and would recommend it to anyone wanting something mild, but noticeable to replace their stock muffler. Here's a link to a video of what it sounds like on a stock Tacoma. I think mine's a little quieter because it's 2.25' vs his 2.5' version (40352). https://www.youtube.com/watch?v=XU-IlLA5i_w
Review: sounds great. also installed a vibrant resonator and im not ... - as of now there are no reviews on this so i thought id share. sounds great. also installed a vibrant resonator and im not sure i needed it. its not too loud and has a deep tone. its well built and has a great warrenty too.

## Features

- T-304 Stainless Steel
- Weld On Installation
- All Welded Construction
- Made In USA
- Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0060EI8SQ |
| Best Sellers Rank | #263,242 in Automotive ( See Top 100 in Automotive ) #67 in Automotive Performance Exhaust Mufflers #213 in Automotive Replacement Exhaust Mufflers |
| Brand | Borla |
| Configuration | Offset/Center |
| Customer Reviews | 4.8 4.8 out of 5 stars (58) |
| Date First Available | December 17, 2008 |
| Exterior | Painted |
| Global Trade Identification Number | 00808422403573 |
| Inlet Connection Size | 2.25 Inches |
| Is Discontinued By Manufacturer | No |
| Item model number | 40357 |
| Manufacturer | BORLA |
| Manufacturer Part Number | 40357 |
| Material | Stainless Steel |
| Model | BORLA 40357 |
| OEM Part Number | BDLS40357 |
| Shape | Oval |
| UPC | 808422403573 |
| Vehicle Service Type | Truck |

## Product Details

- **Brand:** Borla
- **Configuration:** Offset/Center
- **Material:** Stainless Steel
- **Shape:** Oval
- **Vehicle Service Type:** Truck

## Images

![40357 ProXS Universal Performance Muffler 2.25" Offset Inlet / 2.25" Center Outlet 4" x 9.5" Oval x 14" Long body 19" Overall Length Reversible Design T-304 Stainless Steel - Image 1](https://m.media-amazon.com/images/I/51vXeJgAR1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice Sound on 2005 Tacoma Xrunner
*by M***R on December 25, 2015*

I bought this muffler (Borla 40357) for my 2005 Toyota Tacoma Xrunner. It is 2.25' offset/center on the inlet/outlet. When I first got it out of the box, I was very surprised how heavy it was (probably 7-9 pounds). It's appears to be very well constructed and of very high quality. I ordered the 2.25' version after reading that Toyota uses metric size tubing and the 05-08 Tacomas are closer to the 2.25' diameter, while the 09+ models are closer to a 2.5' diameter. I had it installed at a local muffler shop and had it installed. He said an offset/offset inlet outlet would have fit better, but he made it work. Upon initial startup, (the rest of my exhaust is completely stock) I couldn't tell a lot of difference between the 22 inch long chambered stock muffler and this 14 inch long straight through muffler. I've put about 500 miles on it in the first 3 weeks of having it. There is some noticeable resonance in the cabin from 2300rpms to about 2700rpms when casually accelerating. When you're coasting or maintaining speed, it is nearly identical in volume to the stock muffler. On the highway, I notice a little bit of drone/resonance, but it's not bad. My truck isn't very quiet in the cab to begin with, and I've ordered some sound deadening mat to counter the road noise and small amount of resonance. In regards to sound , this muffler sounds great. It's very deep and rich, mellow under mild acceleration but really wakes up when you get on it. There is no raspy sound to it and no loud popping, just a very mellow gurgle when decelerating. In regards to performance, it feels like it has a little more low end torque, and when decelerating, I've noticed the back pressure is greatly reduced (probably half of what it was). Overall I'm very happy with my purchase and would recommend it to anyone wanting something mild, but noticeable to replace their stock muffler. Here's a link to a video of what it sounds like on a stock Tacoma. I think mine's a little quieter because it's 2.25' vs his 2.5' version (40352). https://www.youtube.com/watch?v=XU-IlLA5i_w

### ⭐⭐⭐⭐⭐ sounds great. also installed a vibrant resonator and im not ...
*by A***R on November 15, 2015*

as of now there are no reviews on this so i thought id share. sounds great. also installed a vibrant resonator and im not sure i needed it. its not too loud and has a deep tone. its well built and has a great warrenty too.

### ⭐⭐⭐⭐⭐ Super nice muffler, definitely a good product!!
*by T***T on June 20, 2021*

Very good sound, low rumble at idle, throatie at higher rpms and minimum sound at cruising speed 65-70mph. Overall a very good product!!

## Frequently Bought Together

- BORLA 40357 ProXS Universal Performance Muffler 2.25" Offset Inlet / 2.25" Center Outlet 4" x 9.5" Oval x 14" Long body 19" Overall Length Reversible Design T-304 Stainless Steel
- EVIL ENERGY 2.5'' Exhaust Clamp,Lap Joint Band Clamp Stainless Steel for Pipes,Mufflers,Catalytic Converters (1, 2.5 inch)
- Walker 36516 Exhaust System Hanger

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-03-05*