When selecting a cat back exhaust for a Honda Civic Si, performance, sound, and build quality are key factors. The Invidia N1 Titanium Tip stands out as the best overall choice for its balanced performance and durability. For those seeking a more budget-friendly upgrade, the DNA MOTORING CBE-HC02SI-BT offers solid value, though it may sacrifice some longevity. Conversely, the PM Performotor 4″ Burnt Tip caters to enthusiasts looking for a bold sound and style. Buyers often face a tradeoff between quality and cost, or between aggressive sound and daily drivability. Continue reading for a detailed breakdown of each option to help you find the perfect fit.
Complete the kit
Key Takeaways
- The Invidia N1 Titanium Tip excels in durability and sound quality, making it a top pick for enthusiasts.
- Budget options like DNA MOTORING provide decent performance but may lack long-term durability.
- Material quality varies widely; titanium tips tend to last longer and resist corrosion better.
- Sound profile preferences are subjective; some models deliver a deep growl, others a milder tone.
- Installation complexity differs; most systems are straightforward but check compatibility and mounting points.
| Invidia N1 Cat-Back Exhaust System with Titanium Tip for Honda Civic Si Sedan |  | Best Overall for Style and Performance | Piping diameter: 70 millimeter | Package Dimensions: 29.718 H x 152.4 L x 48.768 W centimeters | Package Weight: 42.35 pounds | VIEW ON AMAZON | See Our Full Breakdown |
| DNA MOTORING CBE-HC02SI-BT Muffler CatBack Exhaust System for 2002-2005 Honda Civic Si/SiR Hatchback EP3 |  | Best for Power and Aggressive Sound | Compatibility: 2002-2005 Honda Civic Si/SiR Hatchback EP3 | Material: High Quality Stainless Steel | Construction: Mandrel-Bent, TIG welded CNC flange | VIEW ON AMAZON | See Our Full Breakdown |
| Invidia N1 Titanium Tip Cat-Back Exhaust System for Honda Civic Si Sedan |  | Best for Performance and Sound Upgrade | Fitment: 2006-2011 Honda Civic Si Sedan | Pipe size: 76mm (3 inches) | Tip size: 101mm (4 inches) | VIEW ON AMAZON | See Our Full Breakdown |
| PM Performotor 4″ Burnt Tip Muffler Stainless Catback Exhaust for 2006-2011 Honda Civic |  | Best for Deep Sound and Aesthetic Flair | Compatibility: 2006-2011 Honda Civic 1.8L (excluding Si) | Tip Diameter: 4 inches | Inlet Diameter: 2.25 inches | VIEW ON AMAZON | See Our Full Breakdown |
| DNA MOTORING CBE-HC06EX Stainless Steel Cat Back Exhaust System for 2006-2011 Honda Civic EX 1.8L |  | Best for Power and Deep Sound in a Complete Kit | Brand: DNA MOTORING | Model Number: CBE-HC06EX | Material: T-304 Stainless Steel | VIEW ON AMAZON | See Our Full Breakdown |
| Invidia N1 Titanium Tip Cat-Back Exhaust System for Honda Civic Si Coupe |  | Best Overall for Style and Flow | Fitment: 2012-Up Honda Civic Si Coupe | Pipe size: 76mm (3 inches) | Tip size: 101mm (4 inches) | VIEW ON AMAZON | See Our Full Breakdown |
| DNA MOTORING CBE-HC06SI Stainless Steel Cat Back Exhaust System for 2006-2011 Honda Civic Si FG2 Coupe |  | Best for Performance Gains and Deep Sound | Fitment: 2006-2011 Honda Civic Si FG2 Coupe | Material: T-304 Stainless Steel | Construction: TIG welded CNC flange | VIEW ON AMAZON | See Our Full Breakdown |
| cat back exhaust for honda civic si | Material |
|---|---|
| Invidia N1 Cat-Back Exhaust Sy | — |
| DNA MOTORING CBE-HC02SI-BT Muf | High Quality Stainless Steel |
| Invidia N1 Titanium Tip Cat-Ba | SUS304 stainless steel |
| PM Performotor 4" Burnt Tip Mu | — |
| DNA MOTORING CBE-HC06EX Stainl | T-304 Stainless Steel |
| Invidia N1 Titanium Tip Cat-Ba | SUS304 stainless steel |
| DNA MOTORING CBE-HC06SI Stainl | T-304 Stainless Steel |
More Details on Our Top Picks
Invidia N1 Cat-Back Exhaust System with Titanium Tip for Honda Civic Si Sedan
This Invidia N1 system stands out for its high-quality titanium tip, which offers excellent durability and a sporty look. Designed specifically for the Honda Civic Si Sedan, it provides a noticeable performance boost compared to stock exhausts. While it excels in appearance and build quality, the limited information on sound output and the heavy package weight suggest that installation may be more complex and less straightforward for novices. Compared with the Invidia N1 Titanium Tip for Coupe, this version is tailored to sedans, making it a versatile upgrade for that body style.
Pros:- High-quality titanium tip for durability and style
- Designed specifically for Honda Civic Si Sedan
- Potential performance improvement
Cons:- Limited info on sound or performance gains
- Heavy package weight may indicate complex installation
Best for: Civic Si Sedan owners seeking a stylish, durable exhaust with performance gains and a modern look.
Not ideal for: Beginners or those who prioritize ease of installation over aesthetics, as the heavy package may complicate setup.
- Piping diameter:70 millimeter
- Package Dimensions:29.718 H x 152.4 L x 48.768 W centimeters
- Package Weight:42.35 pounds
- Country of Origin:Taiwan
Our verdict“This pick is ideal for sedan owners who want a durable, stylish upgrade with performance benefits, accepting a potentially more involved install.”
DNA MOTORING CBE-HC02SI-BT Muffler CatBack Exhaust System for 2002-2005 Honda Civic Si/SiR Hatchback EP3
This DNA MOTORING system excels at increasing horsepower and torque thanks to its mandrel-bent stainless steel construction, making it a strong choice for drivers chasing performance. Its aggressive, deep exhaust tone sets it apart from milder options like the OEM or less designed systems. However, the installation may challenge those without mechanical experience, and the louder sound could be too intense for daily drivers or those seeking a quieter ride. When compared with the Invidia N1 systems, it offers more raw power and sound but may sacrifice some refinement and ease of installation.
Pros:- Increases horsepower and torque
- Durable stainless steel construction
- Produces an aggressive, deep exhaust tone
Cons:- Installation may require mechanical skill
- May increase exhaust noise beyond stock levels
Best for: Performance-focused drivers who want a deep, aggressive exhaust tone and noticeable horsepower gains.
Not ideal for: Casual or daily drivers preferring a quieter or less complex upgrade, due to increased noise and installation difficulty.
- Compatibility:2002-2005 Honda Civic Si/SiR Hatchback EP3
- Material:High Quality Stainless Steel
- Construction:Mandrel-Bent, TIG welded CNC flange
- Diameter:3.5 inches
Our verdict“This exhaust suits enthusiasts seeking raw power and a bold sound, with the tradeoff of more complex installation and increased noise.”
Invidia N1 Titanium Tip Cat-Back Exhaust System for Honda Civic Si Sedan
The Invidia N1 Titanium Tip for the 2006-2011 Civic Si Sedan offers impressive exhaust flow improvements, thanks to its stainless steel mandrel-bent piping and high-quality titanium tip. It enhances both power and sound, making it a favorite among enthusiasts looking for a noticeable upgrade. Its heavier weight, however, raises concerns about mounting support, and the specific fitment limits it to certain model years. Compared with the earlier Invidia N1 for coupe models, this version’s focus on sedans makes it a great choice for that body style but less so for others.
Pros:- Improves exhaust flow and performance
- Constructed with high-quality stainless steel
- Enhanced exhaust note and sound
Cons:- Heavy weight may require sturdy mounting
- Designed for specific model years, limiting versatility
Best for: Owners of 2006-2011 Civic Si Sedans wanting a performance boost with improved sound quality.
Not ideal for: Owners of other Civic models or those seeking a lightweight, easy-install option, as the heavy piping may complicate installation.
- Fitment:2006-2011 Honda Civic Si Sedan
- Pipe size:76mm (3 inches)
- Tip size:101mm (4 inches)
- Material:SUS304 stainless steel
Our verdict“Best suited for sedan owners wanting a balanced upgrade of power and sound, with installation considerations in mind.”
PM Performotor 4″ Burnt Tip Muffler Stainless Catback Exhaust for 2006-2011 Honda Civic
This PM Performotor system offers a distinctive burnt tip and a deep, aggressive tone that enhances the Civic’s sporty character. Its 4-inch tip provides a bold visual statement, and mandrel bends ensure smooth exhaust flow. It’s designed for 2006-2011 Honda Civics with 1.8L engines, excluding the Si, making it a good option for non-Si models seeking an aesthetic upgrade combined with performance. The system’s louder exhaust note may not appeal to those preferring a subtler sound, and installation could be challenging without professional help. Compared with stainless steel systems like the DNA MOTORING, this one emphasizes style as much as performance.
Pros:- Durable T-304 stainless steel construction
- Aggressive deep tone enhances driving experience
- Mandrel bends for smooth exhaust flow
Cons:- Does not fit Si models
- May require professional installation
Best for: Owners of non-Si Civics wanting an aggressive look and sound, prioritizing aesthetics and a deep tone.
Not ideal for: Drivers of Si models or those preferring a quieter, more refined exhaust note, due to its loud, bold tone.
- Compatibility:2006-2011 Honda Civic 1.8L (excluding Si)
- Tip Diameter:4 inches
- Inlet Diameter:2.25 inches
- Finish:Burnt Tip
Our verdict“Ideal for owners seeking a bold aesthetic and deep exhaust sound, accepting the louder tone and installation complexity.”
DNA MOTORING CBE-HC06EX Stainless Steel Cat Back Exhaust System for 2006-2011 Honda Civic EX 1.8L
This DNA MOTORING exhaust system offers a comprehensive upgrade for 2006-2011 Civic EX models, with mandrel-bent T-304 stainless steel piping that boosts horsepower and torque. Its deep, aggressive exhaust tone makes it a compelling choice for those seeking a noticeable sound upgrade. The inclusion of all hardware simplifies installation for those with some mechanical skill, but the louder exhaust might be less suitable for daily commuters or those sensitive to noise. Compared to the Invidia N1 systems, this model emphasizes raw power and affordability, making it a practical upgrade for budget-conscious enthusiasts.
Pros:- Made of high-quality stainless steel for durability
- Increases horsepower and torque
- Includes hardware for straightforward installation
Cons:- Installation may require some technical skill
- Potentially louder exhaust sound may not suit all tastes
Best for: Honda Civic EX owners wanting a performance upgrade with a deep tone and complete hardware for easier installation.
Not ideal for: Casual drivers or those wanting a subtle exhaust sound, as the system’s tone is quite aggressive and louder than stock.
- Brand:DNA MOTORING
- Model Number:CBE-HC06EX
- Material:T-304 Stainless Steel
- Compatibility:2006-2011 Honda Civic EX 1.8L
Our verdict“Perfect for owners seeking a powerful, complete exhaust upgrade with a deep tone, willing to handle a louder sound and installation process.”
Invidia N1 Titanium Tip Cat-Back Exhaust System for Honda Civic Si Coupe
This Invidia N1 Titanium Tip Cat-Back Exhaust stands out for its combination of high-quality SUS304 stainless steel and mandrel-bent piping, which ensures maximum exhaust flow and durability. Compared to the DNA MOTORING FG2 system, it offers a more refined polished finish and a sleek titanium tip that enhances the sporty look. While it requires professional installation—potentially adding to the overall cost—the polished finish and titanium tip deliver a premium aesthetic. The titanium tip may be prone to scratches, which could diminish its appearance over time. This system is an excellent choice for enthusiasts wanting a blend of style and performance, though those seeking a more budget-friendly or straightforward install might prefer other options.
Pros:- High-quality SUS304 stainless steel ensures long-lasting durability
- Mandrel-bent piping maximizes exhaust flow for better performance
- Polished finish provides a sleek, premium look
- Titanium tip adds sporty aesthetics
Cons:- Professional installation recommended, increasing total cost
- Titanium tip may scratch easily, affecting appearance over time
Best for: Civic Si owners prioritizing aesthetics and smooth flow, willing to invest in premium materials and professional installation
Not ideal for: DIY enthusiasts or budget-conscious buyers who prefer simpler, more affordable setups that require less maintenance
- Fitment:2012-Up Honda Civic Si Coupe
- Pipe size:76mm (3 inches)
- Tip size:101mm (4 inches)
- Material:SUS304 stainless steel
- Finish:Polished
- Construction:Mandrel-bent piping
- Tip:Single Titanium
Our verdict“This pick is ideal for those seeking a high-end, visually striking exhaust with solid flow benefits, provided they are comfortable with installation costs.”
DNA MOTORING CBE-HC06SI Stainless Steel Cat Back Exhaust System for 2006-2011 Honda Civic Si FG2 Coupe
The DNA MOTORING CBE-HC06SI system is tailored for owners of the 2006-2011 Honda Civic Si FG2 Coupe who want tangible power improvements alongside a deep, aggressive exhaust tone. Its T-304 stainless steel and TIG-welded CNC flange ensure excellent durability and corrosion resistance, similar to the Invidia N1 but with a focus on performance gains. Unlike the Invidia N1 Titanium Tip, it does not emphasize visual flair but compensates with a notable horsepower boost of 15-25 HP and torque increases. Installation can be tricky for those without mechanical skills, and actual gains depend on other mods—so it’s best suited for experienced tuners. If you’re after a performance-oriented exhaust that enhances sound and power, this system hits the mark, but it’s less refined in appearance than premium options like the Invidia N1 Titanium.
Pros:- Durable T-304 stainless steel construction resists corrosion
- Increases horsepower and torque by 15-25 HP
- Provides a deep, aggressive exhaust tone
- TIG welded CNC flange for a reliable seal
Cons:- Installation may require advanced mechanical skills
- Performance gains vary depending on other modifications
Best for: Experienced enthusiasts seeking a performance upgrade with aggressive sound and significant power gains
Not ideal for: Casual or beginner DIYers who might struggle with installation or don’t prioritize power increases
- Fitment:2006-2011 Honda Civic Si FG2 Coupe
- Material:T-304 Stainless Steel
- Construction:TIG welded CNC flange
- Performance Increase:15-25 horsepower
Our verdict“This exhaust delivers serious performance improvements and a throaty sound, making it suitable for seasoned tuners aiming for power gains.”
How We Picked
These products were selected based on a combination of performance, build quality, customer reviews, and compatibility with Honda Civic Si models. Priority was given to exhaust systems that are known to improve sound and flow without requiring extensive modifications. Durability of materials like stainless steel and titanium was a key factor, along with ease of installation and overall value. The ranking reflects a balance between premium features and affordability, ensuring options are available for different budgets and preferences.| cat back exhaust for honda civic si | Material |
|---|---|
| Invidia N1 Cat-Back Exhaust Sy | — |
| DNA MOTORING CBE-HC02SI-BT Muf | High Quality Stainless Steel |
| Invidia N1 Titanium Tip Cat-Ba | SUS304 stainless steel |
| PM Performotor 4" Burnt Tip Mu | — |
| DNA MOTORING CBE-HC06EX Stainl | T-304 Stainless Steel |
| Invidia N1 Titanium Tip Cat-Ba | SUS304 stainless steel |
| DNA MOTORING CBE-HC06SI Stainl | T-304 Stainless Steel |
Factors to Consider When Choosing Cat Back Exhaust For Honda Civic Si
Choosing the right cat back exhaust for your Honda Civic Si involves several considerations beyond just brand names. Each factor impacts how the exhaust performs, sounds, and lasts over time. Understanding these will help you avoid costly mistakes and find a setup that matches your driving style and goals.Material and Durability
Materials like stainless steel, titanium, and aluminized steel influence longevity and resistance to corrosion. Titanium tips, for example, resist discoloration and rust, making them ideal for long-term use. Cheaper materials may degrade faster, especially in harsh climates or with frequent use. Investing in higher-quality materials often costs more upfront but pays off with durability and less maintenance over time.
Sound Profile and Volume
Exhaust sound is highly subjective. Some buyers prefer a deep, aggressive tone that turns heads, while others want a milder sound suitable for daily driving. Most systems specify whether they are designed for louder or more refined sound, but it’s wise to consider your local noise regulations as well. Remember, a louder exhaust can be exhilarating but may also attract unwanted attention or complaints.
Performance Gains
Not all cat back exhausts deliver noticeable power improvements; some focus mainly on sound and aesthetics. Look for systems that mention increased airflow or reduced backpressure if performance is your goal. Keep in mind that gains are often marginal without other supporting modifications. Reading customer reviews can reveal real-world benefits or drawbacks specific to your Civic Si model.
Installation and Compatibility
Ease of installation varies; some systems are bolt-on, while others may require welding or additional parts. Confirm that the exhaust system is compatible with your specific Civic Si model year and body style. A system designed for a different trim or generation may not fit perfectly or could require adapters, increasing complexity and cost. If DIY installation is a priority, look for options with detailed instructions and straightforward mounting hardware.
Price and Value
Higher-priced exhausts often feature premium materials and more refined sound profiles, but may not be necessary for every driver. Conversely, budget options can provide a noticeable upgrade at a lower cost but might lack longevity and sound quality. Balancing your budget with your expectations for performance and durability will help you choose an exhaust that offers the best return on investment.
Frequently Asked Questions
Will installing a cat back exhaust improve my Civic Si’s horsepower?
Installing a cat back exhaust can provide a slight increase in horsepower by reducing backpressure and improving exhaust flow, but the gains are often modest without additional modifications. For most Civic Si owners, the primary benefits are a more aggressive sound and a sportier appearance. If maximum performance is your goal, consider pairing the exhaust with other upgrades like a cold air intake or ECU tuning.
Is a titanium tip exhaust worth the extra cost?
Titanium tips are more expensive but offer superior resistance to rust and discoloration, maintaining their appearance longer. They also tend to be lighter, which can marginally improve overall weight reduction. If longevity and aesthetics are priorities, investing in titanium makes sense; however, for budget-conscious buyers, stainless steel still provides good durability at a lower price.
Will a louder exhaust cause me to fail emissions tests?
In most areas, the noise level of your exhaust isn’t a factor in emissions testing, which focuses on pollutants. However, some aftermarket systems may alter the emissions profile if they change the exhaust flow significantly. Always check local regulations before upgrading, and consider whether a loud exhaust might attract unwanted attention or violate noise ordinances.
Can I install a cat back exhaust myself, or do I need a mechanic?
Many cat back exhaust systems are designed for straightforward bolt-on installation, making them suitable for DIY enthusiasts with basic tools. However, some models may require additional hardware or welding, especially if modifications are needed to fit your specific Civic Si model. If you’re unsure or lack experience, consulting a professional can save time and prevent installation errors.
How do I choose between different sound profiles?
Sound preference varies widely; some exhausts produce a deep, rumbling tone, while others might be more subdued. Listening to sound clips or attending local car meets can help you gauge what suits your style. Remember, louder exhausts can be exciting but may also lead to noise restrictions or complaints, so consider your daily driving environment before making a choice.
Conclusion
For most Civic Si owners seeking a balanced upgrade, the Invidia N1 Titanium Tip offers a great mix of durability, sound, and performance, making it the best overall choice. Budget-conscious buyers will appreciate the DNA MOTORING CBE-HC02SI-BT for its affordability, though it may not last as long. Enthusiasts craving a premium look and sound might prefer the PM Performotor 4″ Burnt Tip for its bold styling. Beginners or those looking for a straightforward install should focus on systems with clear instructions and compatible hardware. Ultimately, your choice depends on your priorities for sound, durability, and budget.
