Stillen® 504375 - Stainless Steel Cat-Back Exhaust System with Split Rear Exit

15 reviews|Item # mpn4533373798
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    • Remember to check your local or state laws regarding vehicle noise restrictions and Emission Standards.
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    $1,467.78
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    Vehicle Fitment

    Infiniti

    Specifications

    Exhaust System Type
    Cat-Back
    Exhaust Tubing Material
    Stainless Steel
    Exit Location
    Split Rear
    Exhaust System Sound
    Aggressive / Loud
    Tip Finish
    Polished
    Catalytic Converter(s) Included
    No
    Exhaust Type
    Dual
    Exit Location
    Split rear
    Hardware Included
    Yes
    Muffler Configuration
    Single inlet/Single outlet
    Muffler Finish
    Natural
    Muffler Included
    Yes
    Muffler Material
    304 stainless steel
    Muffler Quantity
    Two
    Quantity
    Sold as a kit.
    Remanufactured
    No
    System Finish
    Natural
    System Material
    304 stainless steel
    System Style
    Cat-back
    Tip Color
    Polished
    Tip Cut
    Slant
    Tip Edge Style
    Rolled edge, double-wall
    Tip Included
    Yes
    Tip Material
    304 stainless steel
    Tip Quantity
    2
    Tip Shape
    Round
    Additional Info
    19 WHP Increase (horsepower to the wheels)
    8 lbs/ft Gain Torque
    13lbs Less Than Stock Exhaust

    Features

    • Authoritative Tone Under Throttle
    • Increase of Horsepower and Torque
    • Designed to provide long-lasting service life
    • Made utilizing state-of-the-art equipment
    • Engineered to offer the ultimate in strength and reliability

    Product Details

    Stainless Steel Cat-Back Exhaust System with Split Rear Exit by Stillen®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. The Infiniti G35 Sedan gets a big boost in performance with the addition of Stillens V36 Cat-back Exhaust System. This exhaust presented the company with a dilemma. The 1st prototype yielded tremendous power but at a higher sound level than Stillen normally accept. Stillen tireless R & D team refined the G35 exhaust to deliver a system that is quieter than its predecessor yet retains all the performance gains. Increase the performance of your vehicle with the Stillen Cat Back Exhaust System. This Stillen Cat Back Exhaust System improves the sound and performance of the vehicle. Stillen pride ourselves in designing an all-new cat back exhaust system that strikes a great balance between the performance minded enthusiast and daily drivability.

    Installation

    Stillen® - Stainless Steel Cat-Back Exhaust System Installation Instructions

    After speaking with a number of G35 Sedan owners, Stillen elected to keep both systems, giving you the choice of how quiet or loud you want the system to be.
    03-06 Generation 1 - This is a louder system than Stillen G35 Coupe or 350Z systems and makes substantially more power than either of those.
    03-06 Generation 2 - New and improved - Same great power now with a quieter tone. The original system yielded tremendous power but at a higher sound level than Stillen typically look for.
    2008 Generation 2 - Developed in line with the previous Generation 2 goal, great power with a quieter tone.
    Either generation of these stainless steel cat-back exhaust systems for the G35 will increase your sedans performance up to 18-20 hp and 8 lbs. ft. of torque - at the rear wheels! Twin resonators are employed.
    These are a 100% Stainless Steel system with dual path piping and a single muffler system that uses Stillens distinctive X pipe to promote exhaust scavenging as well as balancing pressure.
    With only 4 pieces to install this system weighs 13 lbs. less than the stock exhaust and offers a precise fit on any Sedan trim level. Polished pieces include the twin resonators & muffler while twin polished Stainless tips finish off the system for a great look.

    Power is the primary purpose of the Stillen Exhaust System on your car. However, sound is a close second. With an authoritative growl that has become easily recognized at the Stillen trademark sound. This exhaust is mild at low RPM and comes alive when pressed into the higher RPM ranges. The free flowing mufflers keep the sound down when you want to be civilized but let you be heard when you want to let loose.

    Stillen® - Stainless Steel Cat-Back Exhaust System Installation InstructionsStillen® - Stainless Steel Cat-Back Exhaust System Dyno ChartMade In USAStillen Authorized Dealer
    Brand:
    Stillen
    Part Number:
    504375
    UPC:
    600700002801

    Reviews

    (15)
    Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
    /5
    1-10 of 15 Reviews
    3 of 5
    Catback Exaust
    Not very loud as it’s rating on the website.
    Stillen® - Stainless Steel Cat-Back Exhaust System with Split Rear Exit
    Posted by Tyarn (Henrico, VA) / September 27, 20222008 Infiniti G35
    5 of 5
    Perfect
    Love the sound and the look the carbon fiber added to my vehicle. Great investment very happy with this purchase.
    Posted by Randy (Salisbury, MD) / March 19, 20252023 Nissan Altima
    5 of 5
    Amazing sound upgrade!
    I had this installed on my G37 and it completely transformed the sound! At idle it's quiet but once you get on the throttle, it roars! Not too loud to be annoying, just perfect.
    Posted by Joseph (Las Vegas, NV) / September 15, 20242011 Infiniti G37
    5 of 5
    About 15 HP. Easy Install.
    I have a 2020 Maxima, 300 hp. Wanted a bit more. Toyed with the idea of getting the cat back exhaust. I did not expect much as the 2 Cats are the limiting factor in this exhaust. Product was of high quality. Welds looked good. I was too lazy to install myself so I had Midas do it for $165. Everything fit perfectly. Sound: At idle and crusing speed it has a low drone. Acceleration adds a crackling sound. Not too loud. Performance: Interesting result. The maxima has a CVT that has *fake* shift points upon maximum acceleration. The engine revs from about 5300RPM to 6100RPM and then goes back down the 5300 RPM for the next "shift". After I installed, I noticed the RPMs of the fake shift were higher. It now starts at about 5600 RPM and goes up to 6300 RPM. I assume the ECM senses less back pressure and is knows the torque band has moved into a higher RPM range and has adjusted accordingly. Enthusiasts HATE this ECM and blame it for sabotaging their performance add ons. In this case it seems to be working in concert with the Stillen exhaust. Observation: The car starts off as usual and then has increased power above 4000RPM. Is it dramatic? No. Is it noticeable? Yes. Did I put it on a dyno? No. A YouTube video shows a middle aged man explaining, installing and dyno testing his Stillen exhaust on a G37 3.2 engine. Similar to the Maxima engine. His dyno test showed 17 HP increase. he also had added a K&N air filter as I did. 15hp increase sound about right. Value: It cost about $1200 and it adds some power. Yes, it was worth it. Guys at Stillen and CarID were helpful.
    Posted by Customer / October 08, 20222020 Nissan Maxima
    2 of 5
    Sounds Good, but Defective
    So I purchased the exhaust and installed it. It sounds great, but when I installed it, the right exhaust was way off on placement. The left side sat perfectly, but the right side sat way off to the right and lower than it should. I couldn't return it for a replacement because I had installed it already, but I wouldn't have known of the issue until then. So I had to have it modified so the right exhaust can sit in the proper place it needed too. I'm not sure if it's the way the manufacturer made it, or if mine was just defective. If you want to take that chance, go ahead.
    Posted by ANYANNETE (Perris, CA) / October 04, 20202018 Infiniti Q60
    2 of 5
    Sounds Good, but Not Loud
    Sounds awesome! But only when you're within 2 feet of the rear of the car. It's an amazing deep growl, but the volume of it is very low. For advertising a max loudness I am very disappointed.
    Posted by Customer / September 13, 20202008 Nissan Altima
    5 of 5
    Amazing Product
    Love this!!
    Posted by Steven (Southington, CT) / February 06, 20202016 Nissan Altima
    5 of 5
    Great Exhaust!
    Great exhaust system for a car that has limited options for the G35x model. It was exactly what I was looking for, no drone calm under daily driving, nice tone under spirited driving. They don't provide enough gaskets or bolts to get the job done in one sitting. Include the 2 extra gaskets and 4 bolts to get the job done! Seriously, you could charge for it and it would make customers much happier!
    Posted by Jordan (Abbotsford, WI) / December 17, 20192006 Infiniti G35
    5 of 5
    Fantastic
    While having my car serviced at a local Nissan dealer I asked two experienced mechanics what exhaust sound and appearance upgrades they would recommend. Both recommended the Stillen Axle-Back Exhaust System for looks, sound, and ease of installation. I couldn't agree more now that they're on my 2016 Nissan Maxima Platinum. I've received many compliments. I also ordered the Stillen splitter and rear diffuser.
    Posted by Mark (Raleigh, NC) / October 22, 20192016 Nissan Maxima
    5 of 5
    Awesome Exhaust.
    Direct fit. Nice mellow tone at idle. Deep tone during acceleration. No drone.
    Posted by Adrian (San Jose, CA) / September 04, 20192016 Nissan Maxima

    Questions and Answers

    (0)
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!