SKU: 46616200360

FAST LSX Manifold 103MM Gen III LS Rect Port - Black

Sale price$596.70 Regular price$663.00
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

FAST LSX Manifold 103MM Gen III LS Rect Port - BlackFAST has developed the industrys first polymer tunnel ram style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines. Available for rectangular port LS3 and raised rectangular port LS7 engines, the FAST LSXHR FAST RAM Intake Manifold features removable stacks of various lengths, so racers can experiment with finding which combination makes the most power in their application. Its polymer construction is not

FAST has developed the industry’s first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines. Available for rectangular port LS3 and raised rectangular port LS7 engines, the FAST LSXHR FAST-RAM Intake Manifold features removable stacks of various lengths, so racers can experiment with finding which combination makes the most power in their application. Its polymer construction is not only lightweight and high strength, but also virtually eliminates power-robbing heat soak that occurs with commonly available aluminum intake manifolds. Testing has shown an average 30-horsepower gain between 5,000 and 7,500 RPM over competitor tunnel ram intake manifolds. The FAST LSXHR FAST-RAM Intake Manifold is designed specifically with boosted applications in mind and is rated for up to 45psi of continuous pressure. Compound fuel injector angle aims the spray pattern for ideal atomization, resulting in maximum power production and superior drivability. A reversible top allows for forward- or firewall-facing throttle body installations. The intake manifold also features two nitrous nozzle bosses per runner for clean and easy direct port system installations. Its 103mm throttle body opening can be port matched to 105mm.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46616200360

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4.5 ★★★★★
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Miguel
New York, US
★★★★★ 5
Super perfecto
Perfecto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
B
Boer
Houston, US
★★★★★ 5
Quick and easy to install
This review is for the INFISTAR AC85111 Cabin Air Filter. To be honest, when I saw this product I was a bit perplexed as to whether our car (Honda Odyssey) even had one! I have never replaced a cabin air filter on any car before. The mechanics might have done so during regular service, but I was not aware of it and had to do an internet search to find out where it would even be installed. Just because of my ignorance, I decided to get it and educate myself. My car actually DID have one and installation would have been a quick and easy job if I remembered to take all the heavy stuff (manuals, etc.) out of the glove box. Because I did not do it, it unhooked it on the right and I had quite a bit of trouble realigning it. If it hadn't been for that, installation would have only take a couple of minutes as it was a breeze. The new filter looks like a good quality product and will last a while. Jury is still out for me on the color though. The old filter was white, so it was easy to see the dirt it trapped. This new filter is almost dirt color which would make it harder to see how dirty it is. However, at such an affordable price, I can replace it as often as I want. I asked my mechanic about it and he said he only replaces cabin air filters if the customer requests it or if he notices a funny odor in the car.
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Reviewed in the United States on April 4, 2026
D
Deval
Birmingham, US
★★★★★ 5
Effective Cabin Air Filter – Fresh and Clean Air for My Car
I recently replaced my car’s cabin air filter with the AC85111 activated carbon filter, and I’ve noticed a clear improvement in air quality inside the vehicle. It helps keep the cabin air fresh, especially during daily commutes and long drives. The activated carbon layer does a good job of reducing dust, odors, and outside pollution, making the driving experience more comfortable. I also noticed less smell from traffic fumes and general road dust entering the car. The fit was perfect for my Honda Pilot, and installation was simple without needing any special tools. It is compatible with several Honda and Acura models, which makes it a reliable replacement option. The material feels well-made and sturdy enough for regular use, ensuring consistent airflow while filtering out impurities effectively. Considering its performance and durability, it also offers good value for money. Overall, this is a practical, easy-to-install, and reliable cabin air filter that helps maintain cleaner and fresher air inside the car.
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Reviewed in the United States on May 8, 2026
T
TJ
Whiting, US
★★★★★ 5
Good fit for our Honda Accord, quality filter
This was the perfect fit for my daughter's Honda Accord. It's a solid, budget‑friendly upgrade that fits perfectly. It only took a few minutes to install. The pleated material feels sturdy, and the activated carbon layer helps cut down on odors and everyday cabin dust.
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Reviewed in the United States on May 30, 2026
Z
Zack
Draper, US
★★★★★ 5
No more funky smell!
Have had a funky smell for a while in my car. Air fresheners just couldn't quite cover it up. I pulled the old filter out which was reallll caked up with stuff and got the new one in. Not only is the funky smell finally gone, but the HVAC is a lot quieter when on full blast, and it blows the air harder. It fit great, installation was easy, and having the smell gone makes it worth absolutely every penny.
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Reviewed in the United States on April 24, 2026

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