I have Stillen supercharger, Z/G headers, cat-back exhaust, side skirts/curtains, and spoiler.






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Ordered a intake for my Infiniti q50S redsport from Stillen because of their R&D they do on their products so I paid a premium for it for... Read More
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Thank you Stillen! Can't speak on the negative reviews but no problems here as I recently purchased some Stillen performance parts includ... Read More
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Best performance parts money can buy for anything Nissan/Infiniti and forever the only ones I’ll continue to use in my Q50
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★★★★★ ★★★★★
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Robin Moses you are the Man!! Ty for all the help! Got my parts!! Always a pleasure too do business with you Cali boys!!
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Purchased cat-back system for my Infiniti 1 year ago. I am very happy with build quality, sound, and performance.
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★★★★★ ★★★★★
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Purchased a Cold Air Intake for my 2017 Nissan Maxima and I absolutely love it! Was debating between Stillen and K&N but hands down would... Read More
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After doing my research and shopping around, I realized that Stillen was the top choice for me. I purchased the Gen 3 Long Tube Cold Air ... Read More
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I have a 16 Q50 red sport. I have seen a mixture of positive n very negative comments about Stillen. I am looking at an air intake system... Read More
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I have Stillen supercharger, Z/G headers, cat-back exhaust, side skirts/curtains, and spoiler.
-
Ordered a intake for my Infiniti q50S redsport from Stillen because of their R&D they do on their products so I paid a premium for it for... Read More
-
Thank you Stillen! Can't speak on the negative reviews but no problems here as I recently purchased some Stillen performance parts includ... Read More
-
Best performance parts money can buy for anything Nissan/Infiniti and forever the only ones I’ll continue to use in my Q50
-
★★★★★ ★★★★★
-
Robin Moses you are the Man!! Ty for all the help! Got my parts!! Always a pleasure too do business with you Cali boys!!
-
Purchased cat-back system for my Infiniti 1 year ago. I am very happy with build quality, sound, and performance.
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★★★★★ ★★★★★
-
Purchased a Cold Air Intake for my 2017 Nissan Maxima and I absolutely love it! Was debating between Stillen and K&N but hands down would... Read More
-
After doing my research and shopping around, I realized that Stillen was the top choice for me. I purchased the Gen 3 Long Tube Cold Air ... Read More
-
I have a 16 Q50 red sport. I have seen a mixture of positive n very negative comments about Stillen. I am looking at an air intake system... Read More
-
I have Stillen supercharger, Z/G headers, cat-back exhaust, side skirts/curtains, and spoiler.
-
Ordered a intake for my Infiniti q50S redsport from Stillen because of their R&D they do on their products so I paid a premium for it for... Read More
-
Thank you Stillen! Can't speak on the negative reviews but no problems here as I recently purchased some Stillen performance parts includ... Read More
Let customers speak for us
from 275 reviewsJust what I expected, have the flexibility of disabling the device via the Bluetooth App. Noticeable difference!! Very happy!

Best in the business for cold air intakes that don’t require a tune
![2007-2008 Infiniti G35 Sedan - Dual Ultra Long Tube Air Intake Kit (Gen 3) [V35] - Dry Filter - 402849DF](https://cdn.shopify.com/s/files/1/0144/4275/8230/files/402849DF_08-09_IMG001_Infiniti_G35_Sedan_STILLEN_Dual_Hi_Flow_Ultra_Long_Tube_Gen3_Intake_Dry_v1_70x70.jpg?v=1753821483)
After doing research stillen gave the most dyno proven HP gains. So lead to me choosing them over other competitors. Have to say one of the easiest intake installs I’ve done!
After installation didn’t notice much on the sound(didn’t really test before). But the throttle response when driving is dramatically improved and nice. Can be a little jumpy but when proven HP gains it shows!

i have smashed this thing into walls repeatedly and been tboned by an suv totalling the car and it still looks perfect and fits great after pullijg the frame back out.
![2003-2004 Infiniti G35 [Sedan] Rear Valance - 103718](https://cdn.shopify.com/s/files/1/0144/4275/8230/products/103718_IMG01_2003_04_Infiniti_G35_Sedan_Rear_Valance_70x70.jpg?v=1753821458)
Got this kit installed in a little under 2 hours, thanks to the youtube.
Noticed immediate and instant gains on the low end. Fuel mileage is still TBD, but the gain in the low end was worth it. Highly recommend!

Fit perfect on a 2024 sierra. Looks awesome

Immediately felt the power difference and I was able to do longer burn outs with my truck lol. From the line it’s quick and accelerates whole lot quicker than usual

The sound is incredible. It’s quiet while idling, but nice and deep when cold starting or accelerating. Perfect for us old heads that still love the q50, but don’t want to annoy are neighbors. Not obnoxious are too loud. Stillen nailed it with this exhaust upgrade. It sounds great passing through canyons. If your car is lowered like mine, the sound feels deep and powerful. Perfect for daily driving your Q.

Fairly quite below 1.7k rpm with a low tone rumble but you could really start to hear it above 2k or if you step on the gas. I have an hour commute and it is not too loud for it to be an annoyance. Welds all look very good. Parts fit together well. I put rustoleum high heat primer and spray paint to hopefully avoid corrosion for a few extra years. Very happy with the purchase for the price.

These look great, much better than the Ti tips. Much better finish with the double wall look. The included clamps were a better finish than the clamps included with the Ti tips, but was curious why they went with the smaller diameter fastener. Looks good with the rear valance.

I’ve been running the tuner for a week now and have driven just over 1500 miles. Very happy!

Just as advertised fits perrect and is so much better to drive on than the OEM sway bar. Tons less body roll and i upgraded all the suspension along with it and its feels so tight and so nice able to corner at crazy speeds

Love the look and great material quality like oem parts
![2014-2016 Lexus IS250, IS350 Rear Diffuser [Matte Black] - KB31002MB](https://cdn.shopify.com/s/files/1/0144/4275/8230/products/lexus-rear-diffuser-mb_70x70.jpg?v=1753821414)
Easy install ! Perfect fitment ! Sound just right ! Not too loud but perfect for street use , amazing finish on mufflers ! Fast ship as well !

Definitely noticeable throttle response. Hole alignment issues have been rectified.
