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Description
Borla 11898 - Axle-Back Exhaust System S-Type Lexus IS250/IS350Axle Back systems are popular performance parts for customers looking for a louder than stock rumble while accelerating. Like a BORLA(R) Cat Back exhaust system, BORLA(R) Axle Back exhaust systems use engine specific (not universal) mufflers that are designed, tested, and optimized specifically for a particular year, make, and model vehicle. On certain vehicles we offer more than one sound level for the discriminating driver. BORLA(R) Axle Back
Axle Back systems are popular performance parts for customers looking for a louder-than-stock rumble while accelerating. Like a BORLA(R) Cat-Back™ exhaust system, BORLA(R) Axle Back exhaust systems use engine-specific (not universal) mufflers that are designed, tested, and optimized specifically for a particular year, make, and model vehicle. On certain vehicles we offer more than one sound level for the discriminating driver. BORLA(R) Axle Back systems replace the factory rear mufflers and exhaust pipe improving overall sound And performance on your truck, SUV, or car. Welded tips are standard on most systems.
2014-2017 Vehicles have oval openings in real valance. 2018-2022 Vehicles have rectangle openings. BORLA(r) system features 4.25" x 3.5" oval polished T-304 stainless steel tips. BORLA(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA(r) stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Exhaust System Kit; S-Type Axle Back System; T-304 Stainless Steel; With Mufflers; 2-1/4 Inch Pipe Diameter; Dual Exhaust With Dual Exit; Split Rear Exit; With Polished Oval Rolled Angle-Cut Polished T-304 Stainless Steel Tips
Features & Benefits
- Less Restrictive Aftermarket Exhaust System That Will Improve The Sound Level Both Inside The Cabin And Exterior
- Uses Engine-Specific Mufflers That Are Designed, Tested, And Optimized Specifically For A Particular Year, Make, And Model Vehicle
- Replaces The Factory Rear Mufflers And Exhaust Pipe With An Improvement In Overall Sound And Performance To Your Truck, SUV, Or Car
- Require No Cutting Of The Factory System
- Precision Fit : Computer-Controlled Design And Fitment Testing Ensure Easy Bolt-On Installations
- Aggressive "S-Type" Sound Under Acceleration, No Drone At Highway Speeds
- Limited Million Mile Warranty
Attributes
- Sound Level: Aggressive/ Loud
- Type: Axle-Back
- Exhaust Type: Dual
- Outlet Type: Dual
- Exit Position: Split Rear Exit
- Material: Stainless Steel
- Diameter (IN): 2-1/4 Inch
- Includes Muffler: Yes
- Muffler Brand: Borla Brand
- Includes Exhaust Tip: Yes
- Exhaust Tip Style: 4-1/4 Inch X 3-1/2 Inch Oval Angle-Cut
- Exhaust Tip Material: Stainless Steel
- Muffler Quantity: 2
- Includes Exhaust Pipe Muffler Delete: No
- Muffler Configuration: Single Inlet, Single Outlet
- Includes Hardware: No
- Required Welding: Yes
- Estimated Install Time (Hours): 1.5
Specifications:
| Description_ASM | 2014-2022 Lexus IS 250/ IS 350 2.5L V6/ 3.5L V6 Automatic/ Manual Transmission Rear Wheel Drive/ All Wheel Drive 4 Door. |
| Description_DEF | Exhaust System Kit |
| Description_DES | Axle-Back Exhaust System - S-Type |
| Description_EXT | S-Type Axle-Back Exhaust System 2014-2022 Lexus IS 250/ IS 350 2.5L/ 3.5L.V6 Automatic/ Manual Transmission Rear Wheel Drive/ All Wheel Drive 4 Door. |
| Description_INV | BORLA(r) Axle-Back System |
| Description_MKT | 2014-2017 Vehicles have oval openings in real valance. 2018-2022 Vehicles have rectangle openings. BORLA(r) system features 4.25" x 3.5" oval polished T-304 stainless steel tips. BORLA(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA(r) stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. |
| Description_SHO | Axle-Back System |
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4.6 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Great Depth, Beautiful Edition.
Format: Hardcover
The deluxe hardcover is gorgeous, with art on the inside of the cover and diagrams and footnotes galore. I will say the footnotes get pretty deep, almost as many of them as there is "normal" text. But very, very well done deluxe anniversary edition. The content blows me away, and like Heiser says, I'll never read my Bible the same way again. Wouldn't recommend this book to most people, as sometimes I had to go back and re-read a passage, or got done with a footnote that was several paragraphs long and had to remember what the text was talking about before I got sidetracked by the footnote. But very glad I read it, very glad I own it. Also comes with a free digital download (though locked to their free app, Logos).
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Reviewed in the United States on March 8, 2026
★★★★★ 5
The best book so far from Dr. Michael Heiser!! A MUST-HAVE!!
Format: Paperback
This book is a must have! Dr. Michael Heiser was a great scholar that gave truth to all he taught. His book is really filled with good in depth information where you get more understanding with what you read from Scripture. It gives great detail explanation of many topics and references to where you can look into Scripture. There's many footnotes in it as well from him. He has many different books written and I think this is his best. So YES this is a must have and you should get "The Unseen Realm" from Dr. Michael Heiser.
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Outstanding Book, Read Best with Careful Right Division
Format: Hardcover
Verified Purchase. I bought this book for myself and, after reading it, also purchased copies for several family members and friends. The Unseen Realm is one of the most thought-provoking and eye-opening biblical studies I’ve encountered. Michael Heiser does an excellent job restoring the supernatural worldview of Scripture and shedding light on passages that are often overlooked or misunderstood.
From an Acts 9 Mid-Acts Dispensational perspective, however, the book is best read with discernment. The narrative frequently treats Acts 2 (Pentecost) as a major turning point in God’s program for the nations. Mid-Acts theology understands Acts 2 as still part of Israel’s prophetic kingdom program, with the distinct revelation of the Church, the Body of Christ, revealed later through the apostle Paul.
In addition, the book’s strong emphasis on a unified, canon-wide storyline can blur the important Prophecy vs. Mystery distinction, particularly the uniquely Pauline revelation of the unprophesied mystery of the Body of Christ.
Finally, while not teaching baptismal regeneration, the book affirms water baptism as meaningful for believers today, which differs from the Mid-Acts conviction that the Church participates only in the one baptism of the Spirit (1 Cor. 12:13).
Overall, this is an excellent and enriching book that I gladly recommend — provided it is read with careful right division and Pauline distinctives firmly in place.
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Reviewed in the United States on February 4, 2026
★★★★★ 5
This book will change how you view the Bible in context (in a very good way).
Format: Hardcover, Format: Hardcover
When I first stumbled upon Dr. Heiser’s work, I didn’t know just how much I was going to enjoy it. In the Unseen Realm, Dr. Heiser lays out the best exegetical and hermeneutical case I’ve seen for understanding the Bible, especially those hard to understand passages that are littered throughout. This book has helped me take my biblical understanding to another level. It’s also one of the best researched books I’ve come across in any subject (60 pages of bibliography). Not only can you read this and enjoy a new level of understanding, but it can also become a reference book that you use again and again. I’m now going to read his other books because this was fantastic. God bless you all.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Required Reading for Serious-about-Scripture Christians
Format: Hardcover
A must-have, must-read for anyone interested in what Scripture's authors believed and communicated in the writings. Eye opening, gripping, and serves as an outstanding introduction or supplemental to the ancient context of Scripture for understanding it's teaching today. Absent are surface level feel-good platitudes. This book is for someone who wants meat. I highly recommend this book and Michael Heiser's other books.
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Reviewed in the United States on March 6, 2026