★★★★★ 5
Good
Love this product, take it daily
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Reviewed in the United States on May 30, 2026
Fabspeed Porsche 981 Boxster/Cayman Maxflo Performance Exhaust System (2013-2016)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Fabspeed Porsche 981 Boxster/Cayman Maxflo Performance Exhaust System (2013-2016)SKU: POR. 981. MAXP Fabspeed Porsche 981 Boxster Cayman Maxflo Performance Exhaust System (2013 2016) This Fabspeed Maxflo Performance Exhaust System fits 2013 2016 Porsche 981 Boxster Cayman and GT4 models. It balances sound power and drivability for street or light track use with dyno proven gains of 16 HP crank 13 whp at 6300 RPM and 13 ft lbs torque at 4000 RPM. Constructed from T304 stainless steel this cat back system saves 9 lbs over OEM
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- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 1470 reviews
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Product Reviews
★★★★★ 5
Worth the money
It the first thing I drink in the morning
Taste is good, easy to use, keeps my body happy.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Metamucil with a fiz!
Great product. Does what it’s supposed to do.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Competitive pricing
Works as advertised
Name brand item
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Reviewed in the United States on May 5, 2026
★★★★★ 1
Their other flavors without fizz are great...but not this one (My honest opinion).
Now I know why this one was so cheap! The taste was not pleasing to me at all... I threw it away. However, I do love their other lines, with the berry flavor being the best! Orange is good too but to obtain the best flavor, 2 spoons are required (for me anyways). Also, the berry flavor (while only taking 1 spoon) is even better tasting if you add a little lemon juice to it. Finally, I read that adding lemon juice to water helps to prevent kidney stones! Who knew! This is a good product but I think they went to far trying to add "fizz".... the effect was negative while the previous products are great!
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Reviewed in the United States on October 26, 2025
