GSC P-D Porsche 991 Turbo Conical Spring Set

GSC P-D Porsche 991 Turbo Conical Spring Set

Marsoni

M251S

$490.88

Get it in 3 business days with 1 day shipping. Friday, May 29

GSC P-D Porsche 991 Turbo Conical Spring SetSKU: 5094 GSC P D Porsche 991 Turbo Conical Spring Set 2014 2019 GSC Power Division Porsche 991 Turbo Conical Spring Set GSC5094 equips 2014 2019 Porsche 911 Turbo Turbo S and GT2 RS models with precision engineered valve springs. These conical springs deliver 180 lbs seat pressure at 1. 90mm and 520 lbs open pressure at 11. 00mm for stable valve motion at high RPM. The lightweight design cuts valvetrain mass to enable faster revs and consistent power

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Fast: 2-3 business days
Express: 1-2 business days

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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.
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I recently replaced my old cabin air filter with this one, and the difference was noticeable right away. Installation was quick and straightforward took less than 10 minutes with no special tools needed. What I appreciate most is the air quality improvement. The airflow feels stronger, and there’s a clear reduction in dust, odors, and outside pollution entering the cabin. If you’re looking for an easy, affordable upgrade that actually makes a difference in everyday driving comfort, this cabin filter is definitely worth it.

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Reviewed in the United States on November 19, 2025

Verified Purchase

Benjamin Argabright

West Palm Beach, US

★★★★★ 5

My wife says its shiny and pretty!

Fits my 2005 Escape perfect. Works great!

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Reviewed in the United States on April 12, 2026

Verified Purchase

Takota Lenfest

Los Angeles, US

★★★★★ 5

100%

This was definitely a great purchase! I put it in my moms truck and it works great no issues at all

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Reviewed in the United States on November 26, 2025

Verified Purchase

Austin Birge

Waukegan, US

★★★★★ 5

OE quality part!

Great product! A-Premium always comes in clutch with the affordable parts that are built well ! Fit perfectly on my 2011 Ford Escape 3.0. Only took me 20 minutes to install.

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Reviewed in the United States on April 13, 2026