Xcalibur Diesel Performance LLC

- Overview
- Intro
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- Location
- Reviews
- +1 423-273-3316
- xcaliburdieselengines.com
- 3694 US-19E Suite #2, Elizabethton, TN 37643, USA
Operating Hours
Xcalibur Diesel Performance LLC Introduce
Xcalibur Diesel Performance LLC, located at 3694 US-19E Suite #2, Elizabethton, TN 37643, USA, operates as a highly specialized auto repair station, focusing exclusively on diesel engines and performance modifications. Unlike general auto repair shops, Xcalibur Diesel Performance caters to a specific niche within the automotive industry, serving owners of diesel trucks and vehicles who require expert diagnostics, repair, and high-performance engine building. For those in the Elizabethton area and beyond who own diesel vehicles, Xcalibur Diesel Performance LLC can be reached at (423) 273-3316 or via mobile at +1 423-273-3316.
The environment at Xcalibur Diesel Performance LLC would be distinctly engineered for precision diesel work. This typically involves a meticulously clean and organized shop floor, equipped with specialized tools and machinery unique to diesel engine diagnosis, repair, and especially, building. This includes heavy-duty lifts capable of handling large trucks, specialized diagnostic software for various diesel platforms (e.g., Duramax, Cummins, Power Stroke), and dedicated bays for engine disassembly, assembly, and testing. There might be areas for machining engine components or for dynamometer testing to verify performance gains after modifications. While a customer waiting area would likely be available, the emphasis is heavily placed on the technical capabilities of the shop and the craftsmanship involved in complex diesel engine work. The atmosphere likely reflects a high level of technical expertise and a passion for diesel performance, appealing directly to discerning diesel owners and enthusiasts.
The services offered by Xcalibur Diesel Performance LLC are highly specialized and comprehensive within the realm of diesel vehicles. These commonly include:
- Diesel Engine Diagnostics: Utilizing advanced diagnostic tools and software to accurately pinpoint issues within complex diesel engine systems, including fuel injection problems, turbocharger issues, DPF (Diesel Particulate Filter) problems, and more.
- Diesel Engine Repair: Comprehensive repair services for all major diesel engine components, addressing common issues found in Duramax, Cummins, and Power Stroke engines. This can range from minor repairs to significant component replacements.
- Custom Diesel Engine Building: This is a core specialization, involving the complete assembly or reassembly of high-performance diesel engines from the ground up. This includes selecting and installing upgraded internal components (e.g., pistons, rods, camshafts), strengthening critical failure points, and ensuring precise tolerances for maximum power and reliability.
- Diesel Performance Upgrades: Installation of aftermarket performance parts such as larger turbochargers, upgraded fuel injectors, performance exhaust systems, air intakes, and intercoolers to enhance horsepower, torque, and overall vehicle performance.
- Diesel Tuning and Calibration: Custom programming of the engine's control module (ECM) to optimize fuel delivery, turbocharger boost, and other parameters for improved performance, fuel economy, or specific towing needs.
- Transmission Upgrades: Often, performance diesel engines require upgraded transmissions to handle increased power and torque, so the shop may also offer services related to heavy-duty transmission builds or upgrades.
- General Diesel Maintenance: Although focused on performance, they would also handle essential maintenance specific to diesel vehicles, such as fuel filter replacements, oil changes with diesel-specific oils, and glow plug services.
A significant feature of Xcalibur Diesel Performance LLC is its deep specialization and expertise in diesel engine building and performance, particularly as highlighted by customer reviews for "Jeremy." This implies a mastery of the intricate mechanics and electronics of diesel engines, allowing them to not only fix problems but also to engineer engines for extreme performance and durability. The ability to identify and "attack every failure point" during an engine build is a critical feature, demonstrating a commitment to long-term reliability even under high-stress conditions. Transparency and honesty, especially regarding parts selection and cost management, are also standout features. The reviews emphasize that they help customers avoid "hyped up parts that I really didn't need," saving money and building trust. Excellent customer communication, including promptly returning calls and answering all questions, is another valuable feature that contributes significantly to customer satisfaction in a complex field like diesel performance. The craftsmanship involved in building a "beast" of an engine, described as a "piece of machinery," speaks to the quality and precision of their work, distinguishing them as "master craftsman engine builders."
Promotional information for a highly specialized business like Xcalibur Diesel Performance LLC would typically focus on showcasing their technical prowess and the tangible results of their work. This could include before-and-after dynamometer readings, videos of engine builds, and detailed explanations of the performance gains and reliability improvements achieved through their services. They would likely target diesel enthusiasts, truck pullers, and heavy-duty vehicle owners through specialized forums, social media groups, and perhaps local automotive events. Testimonials from satisfied customers, like those provided, would be a cornerstone of their marketing, emphasizing their honesty, knowledge, and ability to deliver exceptional results. Offering consultations to discuss custom build plans, showcasing a portfolio of completed projects, and transparently breaking down the costs associated with performance upgrades would also be effective promotional strategies. Given the investment involved in diesel performance, emphasizing their reputation for saving customers money by avoiding unnecessary parts, while still delivering top-notch performance, would be a strong selling point.
The customer reviews for Xcalibur Diesel Performance LLC are overwhelmingly positive and offer profound insights into the company's strengths, particularly those of "Jeremy." The first review states, "Jeremy was patient and worked with me getting this build started and made sure I didn't waste money on hyped up parts that I really didn't need. He saved me a few thousand so far and has answered all of my questions and returned all of my calls promptly I have heard his work is top notch. And if I am not 100% satisfied by the end of my dealings with him I will edit my review accordingly." This feedback highlights Jeremy's exceptional customer service, characterized by patience, cost-saving advice, and prompt communication. The mention of saving "a few thousand" dollars by guiding against unnecessary parts speaks volumes about their honesty and integrity, a crucial aspect in the often-expensive world of performance modifications. This builds significant trust before the build is even complete.
The second review is even more emphatic: "Jeremy is the most knowledgeable and helpful guy when it comes to building diesel engines. if you own a diesel you need to get one built here!!!!. They are master craftsman engine builders. Just get one built by them. And you'll see what im talking about. Every question answered. Came up with a game plan to build me a lly duramax. What a piece of machinery they build. Wow. They attacked every failure point!! Go xcalibur! Hard working American business!!!! Thank you again. My beast is alive! P.s.on that other kids review. Clearly he wanted to be cheap instead of reliable. Don't play if you can't pay. Diesel hobbys are worse than boats! Thank you again jeremy." This review is a powerful endorsement, calling Jeremy "the most knowledgeable and helpful guy" and the team "master craftsman engine builders." The reviewer's passionate advocacy, emphasizing that every question was answered and that Xcalibur "attacked every failure point" on their LLY Duramax build, underscores the depth of their technical expertise and dedication to reliability. The phrase "What a piece of machinery they build. Wow. My beast is alive!" conveys immense satisfaction with the final product. The defense against potential negative reviews by highlighting the cost versus reliability aspect ("Don't play if you can't pay. Diesel hobbys are worse than boats!") further solidifies the perception that Xcalibur provides high-quality, reliable work for a fair price, appealing to serious diesel enthusiasts who understand the investment required. These reviews collectively portray Xcalibur Diesel Performance LLC as a premier destination for diesel engine building and performance, where unparalleled knowledge, honest advice, superior craftsmanship, and excellent customer service lead to truly exceptional results.
Xcalibur Diesel Performance LLC Photos
Xcalibur Diesel Performance LLC Location
Xcalibur Diesel Performance LLC Customer Reviews
Jeremy was patient and worked with me getting this build started and made sure I didn't waste money on hyped up parts that I really didn't need. He saved me a few thousand so far and has answered all of my questions and returned all of my calls promptly I have heard his work is top notch. And if I am not 100% satisfied by the end of my dealings with him I will edit my review accordingly.
Mar 17, 2021 · Daniel Gulick
Jeremy is the most knowledgeable and helpful guy when it comes to building diesel engines. if you own a diesel you need to get one built here!!!!. They are master craftsman engine builders. Just get one built by them. And you'll see what im talking about. Every question answered. Came up with a game plan to build me a lly duramax. What a piece of machinery they build. Wow. They attacked every failure point!! Go xcalibur! Hard working American business!!!! Thank you again. My beast is alive! P.s.on that other kids review. Clearly he wanted to be cheap instead of reliable. Don't play if you can't pay. Diesel hobbys are worse than boats! Thank you again jeremy.
Jan 11, 2024 · Robert Haney
Ordered lml reman engine from him been over a year no issues yet at almost 21k miles
Oct 23, 2024 · Dalton Sons
Great builds and even better customer service..i highly reccomend these guys for your build
Apr 04, 2025 · Tanner Furbay
Had a 2006 Duramax motor rebuilt and installed.. This guy does great work and would recommend highly.
Feb 14, 2025 · Daniel Hatch
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