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Description
Fabspeed GT450 Race Performance Package - Porsche 981 Boxster Spyder | Cayman GT4Fabspeed's GT450 Race Performance Package is the final answer in 981 Cayman GT4 Boxster Spyder performance. Delivering over 400 horsepower to the wheels with easy to install bolt on upgrades, there is no better option for the GT4 or Spyder owner seeking maximum power and performance. No need to swap engines or suffer long periods of downtime during a full engine re build. Simply install the Fabspeed GT450 Package and begin outperforming the 911
Fabspeed's GT450 Race Performance Package is the final answer in 981 Cayman GT4 / Boxster Spyder performance. Delivering over 400 horsepower to the wheels with easy-to-install bolt-on upgrades, there is no better option for the GT4 or Spyder owner seeking maximum power and performance. No need to swap engines or suffer long periods of downtime during a full engine re-build. Simply install the Fabspeed GT450 Package and begin outperforming the 911 Carrera GTS the very next day!
After months of development, Fabspeed is proud to offer our complete power solution for the GT4. With a crowd of Porsche Club of America members looking on, we eclipsed the 400whp mark on our Dynojet. Our esteemed tuner has extracted power from thousands of vehicles, and has proven that the GT4 and Spyder have untapped potential when paired with our suite of performance components. Get the ultimate sound and power upgrade for your GT4 or Spyder and dominate the track or street.
Kit Includes:
- Porsche Cayman GT4 Valvetronic Exhaust System
- Porsche Cayman GT4 Race Headers
- Porsche Cayman GT4 IPD Competition Plenum Package
- Porsche Cayman GT4 BMC F1 Replacement Air Filters
- Porsche Cayman GT4 Cobb Accessport Tuner with GT450 Tune
Features:
- Fits all Porsche 981 Cayman GT4 / Boxster Spyder models (2015-2016)
- Instantly eliminates all symptoms of Carrera envy
- Side effects may include extreme euphoria and uncontrollable excitement. In some cases, users have experienced acceleration-induced tunnel vision
- Adds significant power all throughout the rev range with an additional 53 whp at 6400 RPM and over 65 ft/lbs of torque at 3600 RPM
- Choose between real matte Carbon Fiber tips or Single Wall Stainless Tips that are made in house for a racecar look
- All parts are easily installed with no cutting or welding required, bolt on and go
- The Cobb Accessport gives you easy control over tuning your GT4 or Boxster Spyder, we send all documentation for uploading the GT450 flash to your vehicle upon purchasing
- All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
- INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.2 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Super perfecto
Perfecto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 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
★★★★★ 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
★★★★★ 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
★★★★★ 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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