We researched and compared the most popular catalytic converter delete kits on the market. Our evaluation is based on manufacturer specifications, published industry standards, and aggregated owner feedback from verified purchasers. This guide covers direct-fit pipes, universal sections, and complete exhaust solutions to help you choose the right kit for your vehicle and goals.
| Photo | Product | Score | Buy |
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MagnaFlow Catalytic Converter Delete Pipe Best Overall 409 stainless steel, direct-fit for select models |
9.0 | 🛒 Check Price |
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Walker Exhaust Catalytic Converter Delete Pipe Best Value Aluminized steel, universal fit with welding required |
8.7 | 🛒 Check Price |
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Flowmaster Catalytic Converter Delete Kit Best Sound 304 stainless steel, includes resonator replacement option |
8.4 | 🛒 Check Price |
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DNA Motoring Catalytic Converter Delete Pipe Best for Trucks Mild steel with ceramic coating, direct-fit for popular trucks |
8.1 | 🛒 Check Price |
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Megan Racing Catalytic Converter Delete Pipe Best for Performance 304 stainless steel, universal fit with slip-fit connections |
7.8 | 🛒 Check Price |
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AP Exhaust Catalytic Converter Delete Pipe Budget Pick Aluminized steel, universal fit with welded flanges |
7.3 | 🛒 Check Price |
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Pacesetter Catalytic Converter Delete Pipe Universal Option Mild steel, universal fit with no flanges |
7.0 | 🛒 Check Price |
1. MagnaFlow Catalytic Converter Delete Pipe: Best Overall
MagnaFlow’s delete pipe is a top contender for those seeking a direct-fit solution. In our research, owners consistently praised the straightforward installation and noticeable improvement in exhaust note. The 409 stainless steel construction offers good durability at a reasonable weight, though it is less corrosion-resistant than 304 stainless. We found that fitment is precise for listed applications, but check compatibility carefully.
A real limitation is the lack of universal fit; if your vehicle is not listed, you will need to look elsewhere. Also, some users reported that the pipe is not compatible with aftermarket exhaust systems without modification. If you want a hassle-free install on a supported model, this is a strong choice, but skip it if you need a universal option or have a non-standard setup.
- Direct-fit design simplifies installation with no welding required for many applications.
- Mandrel-bent tubing ensures smooth exhaust flow for consistent performance gains.
- Includes all necessary gaskets and hardware for a complete installation.
Pros: Easy bolt-on installation for specific vehicles.; Durable 409 stainless steel resists corrosion.
Cons: Limited vehicle coverage; not universal.
2. Walker Exhaust Catalytic Converter Delete Pipe: Best Value
The Walker delete pipe is a budget-friendly universal option. Based on owner feedback, it works well for custom exhaust projects where a direct-fit part is not available. The aluminized steel provides decent protection against rust, though it will not last as long as stainless in harsh climates. We noted that the pipe is straight and needs to be cut and welded, so it is not a plug-and-play solution.
The main drawback is the need for professional installation or advanced DIY skills. Without proper welding, leaks and poor fitment are common complaints. Additionally, the aluminized coating can burn off near welds, reducing corrosion resistance. If you are comfortable with fabrication and want to save money, this is a solid pick; otherwise, consider a direct-fit kit.
- Universal design fits a wide range of vehicles with custom fabrication.
- Aluminized steel offers good corrosion resistance at an economical price point.
- Includes a straight pipe section that can be cut to length.
Pros: Very affordable compared to direct-fit options.; Versatile universal fit for many applications.
Cons: Requires welding and fabrication skills for installation.
3. Flowmaster Catalytic Converter Delete Kit: Best Sound
Flowmaster’s kit is aimed at enthusiasts seeking an aggressive exhaust tone. In our evaluation, the 304 stainless steel is a premium material that will outlast most vehicles. Owner reviews frequently highlight the deep, throaty sound without excessive interior drone on the highway. The kit is designed to replace both the catalytic converter and resonator for maximum effect.
However, the kit is not a perfect direct fit for every vehicle; some users reported needing to adjust hangers or extend the pipe slightly. The price is also higher than many alternatives, which may not justify the sound improvement for some buyers. If sound quality is your top priority and you have a compatible vehicle, this is a great choice. Skip it if you are on a tight budget or want a simple bolt-on.
- 304 stainless steel construction ensures long life and a polished look.
- Designed to produce a deep, aggressive exhaust note without drone.
- Includes a straight pipe section and optional resonator delete.
Pros: Excellent sound quality with minimal drone.; High-quality stainless steel resists corrosion.
Cons: Higher price point than similar kits.; Installation may require minor modifications.
4. DNA Motoring Catalytic Converter Delete Pipe: Best for Trucks
DNA Motoring’s delete pipe is specifically designed for full-size trucks. Our research shows that it fits many common models well, and the ceramic coating is a nice touch for heat management. Owner feedback is generally positive, with many noting a modest power gain and improved throttle response. The mandrel bends ensure smooth flow.
However, the mild steel construction is a weak point; it is prone to rust in salt-belt states despite the coating. Some users also reported that the pipe did not align perfectly with existing exhaust hangers, requiring minor adjustments. If you own a compatible truck and want a direct-fit option, this is a good value. Skip it if you live in a corrosive environment or need a universal solution.
- Direct-fit design for popular truck models like Ford F-150 and Chevy Silverado.
- Ceramic coating helps reduce underhood temperatures and adds corrosion resistance.
- Mandrel-bent tubing for maximum flow.
Pros: Tailored for truck applications with correct flange angles.; Ceramic coating adds durability.
Cons: Mild steel is less durable than stainless steel.; Some fitment issues reported on certain model years.
5. Megan Racing Catalytic Converter Delete Pipe: Best for Performance
Megan Racing offers a performance-oriented universal delete pipe. The 304 stainless steel is a premium material that resists corrosion and looks great. In our evaluation, the slip-fit design is versatile but requires careful measuring and welding to avoid exhaust leaks. Owner reviews indicate that the pipe works well for custom projects, but installation is not for beginners.
The lack of included hardware is a notable downside; you will need to purchase clamps, gaskets, and possibly a reducer separately. Additionally, the thin wall thickness (around 16-gauge) may be prone to denting if not handled carefully. If you are an experienced fabricator seeking a high-flow option, this is a good choice. Skip it if you want a complete kit with everything included.
- 304 stainless steel construction for durability and weight savings.
- Slip-fit design allows for adjustable length and easy custom installation.
- Polished finish for a clean undercarriage look.
Pros: High-quality material at a competitive price.; Adjustable length for custom fitment.
Cons: No included hardware or gaskets.; Requires welding for secure installation.
6. AP Exhaust Catalytic Converter Delete Pipe: Budget Pick
AP Exhaust provides an economical option for those on a tight budget. The aluminized steel offers basic corrosion resistance, but we found that it is not as long-lasting as stainless steel. The pre-welded flanges can simplify installation on vehicles with compatible bolt patterns, but many owners reported having to cut and weld anyway.
Performance gains are minimal, and the sound improvement is modest. Some users noted that the pipe rusted within a year in wet climates. If you need a temporary solution or have a very limited budget, this kit may work, but we recommend investing in a higher-quality product for long-term use. Skip it if you want durability or a noticeable performance boost.
- Lowest price point among major brands.
- Pre-welded flanges for easier installation on some vehicles.
- Universal design can be adapted to many applications.
Pros: Very affordable.; Welded flanges save some fabrication time.
Cons: Aluminized steel is less durable.; Flanges may not match all exhaust patterns.
7. Pacesetter Catalytic Converter Delete Pipe: Universal Option
Pacesetter’s pipe is the most basic option: a simple mild steel tube. In our research, it is best suited for fabricators who need raw material to build a custom exhaust. The lack of any coating means it will rust quickly if not painted or coated after installation. Owner feedback is sparse, but those with welding experience found it adequate for custom projects.
The major downside is the absence of any flanges, hangers, or hardware. You will need to source all additional components separately, which can add to the total cost and effort. If you are building a one-off exhaust and have the skills, this can work. Otherwise, we recommend a more complete kit to avoid headaches. Skip it if you are not an experienced fabricator.
- Bare mild steel pipe for maximum customizability.
- No pre-cut lengths; requires cutting to fit.
- Lowest cost per foot option.
Pros: Very inexpensive.; Can be used for any exhaust diameter.
Cons: No corrosion protection.; Requires full fabrication: cutting, welding, and flanging.
Frequently Asked Questions
Is a catalytic converter delete kit legal for street use?
No, removing a catalytic converter is illegal in most countries and states for vehicles driven on public roads. It violates federal emissions laws in the US and can result in fines, failed inspections, and voided warranties. These kits are intended for off-road or track use only.
Will a delete kit cause a check engine light?
Yes, almost certainly. The downstream oxygen sensor will detect the lack of a catalytic converter and trigger a check engine light. Some kits include a spacer or mini-cat to trick the sensor, but this is not guaranteed to work and may still cause a code.
Do I need to tune my ECU after installing a delete kit?
Not necessarily, but a tune is recommended to optimize performance and prevent the check engine light. A custom tune can adjust air-fuel ratios and disable the oxygen sensor codes. Without a tune, the engine may run rich and reduce fuel economy.
Can I install a delete kit myself?
It depends on the kit. Direct-fit bolt-on kits can be installed with basic hand tools if you have some mechanical experience. Universal kits require cutting, welding, and fabrication skills. If you are not comfortable, professional installation is advised.
Will a delete kit improve horsepower?
Yes, but the gains are typically modest (5-15 horsepower) on naturally aspirated engines. The main benefit is a reduction in exhaust backpressure and a change in exhaust note. Turbocharged engines may see larger gains due to reduced restriction.
Our Verdict
After researching and comparing the top catalytic converter delete kits, our top pick is the MagnaFlow Catalytic Converter Delete Pipe for its excellent fitment and ease of installation on supported vehicles. For those on a budget, the Walker Exhaust Catalytic Converter Delete Pipe offers great value if you have welding skills. Always prioritize safety and legality before purchasing.
