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Stillen® 504350D - Stainless Steel Cat-Back Exhaust System with Split Rear Exit

15 reviews|Item # mpn4533373519
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$1,383.43
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Vehicle Fitment

Nissan

Specifications

Exhaust System Type
Cat-Back
Exhaust Tubing Material
Stainless Steel
Exit Location
Split Rear
Exhaust System Sound
Aggressive / Loud
Tip Finish
Polished
Tip Type
Double Wall
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
Increase of 16 HP and 14 ft/lbs On the Dyno

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. Enjoy improved performance, sound and even MPG with the Stillen exhaust for Nissan 350Z! It features mandrel bent piping for a smooth flow. It also features a stainless steel construction for long life. If youre looking to upgrade, this is the exhaust for you!16 RWHP Gain! With years of experience working with VQ35 engines, the Stillen team was able to utilize that knowledge to find hidden power in the Nissan 350Z factory exhaust. The Stillen cat-back exhaust system provides net gains of up to 16 rear wheel horsepower! Aggressive, Yet Refined Nissan 350Z Exhaust While cruising, the Stillen 350Z dual exhaust allows you to enjoy a calm, mellow sound. However, during hard acceleration, you will enjoy that aggressive tone that Stillen is known for with no annoying drone. Stainless Steel Construction the Stillen 504350D stainless steel exhaust not only looks good, but is made to last. This aftermarket exhaust for Nissan 350Z is made of polished stainless steel. It also features 4.5" of polished 304 stainless steel dual wall tips and polished mufflers. 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

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 InstructionsMade In USAStillen Authorized Dealer
Brand:
Stillen
Part Number:
504350D
UPC:
600700002863

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
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
3 of 5
Catback Exaust
Not very loud as it’s rating on the website.
Posted by Tyarn (Henrico, VA) / September 27, 20222008 Infiniti G35
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

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