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.
-
★★★★★ ★★★★★
-
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 213 reviewsSo far the product has been great and lives up to the advertisement. There is an immediate difference in throttle response and mpg. I am very satisfied other than the instructions were not quite accurate on the location of one of the sensors. A video of installation would be a plus due to the access to the turbo pressure sensor which will cause some extended time to install (better have small hands) and to remove when taking your vehicle for warranty service at the dealer. It was was worth the effort though.

Well packed, quick shipping too!

fit perfectly, preforms outstandingly

Great quality
![2016-2024 Infiniti Q50 [3.0t] Cat Back Exhaust System w/ Polished Tips - 504451](https://cdn.shopify.com/s/files/1/0144/4275/8230/files/504451_IMG_002_2016_UP_Infiniti_Q50_70x70.jpg?v=1705431382)
Excellent quality and fitment.
Can’t say about adding any power just yet, need to drive it more.
Bottom line, Very pleased
![2011-2017 Chrysler 300/ Dodge Challenger/ Charger Air Intake - (Enclosed Air Box w/ Oil FIlter) [5.7L] - EVO5100C](https://cdn.shopify.com/s/files/1/0144/4275/8230/products/evo5100_g_1_70x70.jpg?v=1571724029)
Super easy install. Paired it with mid muffler delete, afe intakes. And 93 octane
Sounds like a steamroller. Super fun in manual mode.

So pleased with the quality of this product!
![2016-2024 Infiniti Q50 [3.0t] Cat Back Exhaust System w/ Polished Tips - 504451](https://cdn.shopify.com/s/files/1/0144/4275/8230/files/504451_IMG_002_2016_UP_Infiniti_Q50_70x70.jpg?v=1705431382)
After replacing two radiators, I decided to go aftermarket. Stillen has a good reputation. The replacement radiator was on sale (always a bonus). The radiator fit although the fan shroud needed to be trimmed. I knew that going in. I haven't driven it far, nor are we in the hot weather/stalled in traffic zone, but I have every expectation the radiator will perform as advertised. A purchase with no regrets.

Fits perfect holds up amazing great materials
![2016-2018 Nissan Altima Front Splitter [Matte Black] - KB13152](https://cdn.shopify.com/s/files/1/0144/4275/8230/products/kb13152-altima-splitter_70x70.jpg?v=1571723257)
Awesome quality good fitment and instructions.

I was in the market for a cold air intake for my 2011 hyundai elantra to give it a little more h.p due to the high mileage (300k). As we all know in 2025 there's a million websites to order/ buy things however, Stillen had the best price out of everyone! Thanks again for your professionalism, best price, and fast shipping! Definitely will order/ purchase from Stillen again! 5 star 🌟!

Great product and performs as promised.

I've got increased power, better throttle response, and I'm saving another 5mpg, I would encourage anyone to do this. Only recommendation would be to improve the documentation on accessing the turbo pressure sensor, it took me a half an to identify.

I recently purchased this item for my 2022 Powerboost and it was very easy to install and set up. Instructions were straight forward and once I set my tunes to fit my driving style I noticed a 2-3 mpg gain on eco mode and even shaved a half second off my 0-60 time. I have 33’s and a 3” lift on my Powerboost but I am certain I would be in the 4’s with the TruControl no problem. You will definitely notice the torque and hp gains!!

Install was a breeze, took me 5 minutes. Definitely noticed a pick up in throttle response and turbo spool. Would highly recommend for anyone wanting a simple upgrade that actually works.
