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MOST POPULAR: V6 COOLANT VENT LINE BYPASS KIT - COOLANT LEAK PREVENTION/ REPAIR

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Porsche 992 GT3 Free Flow Headers

Name: Porsche 992 GT3 Free Flow Headers
Brand: Valvetronic Designs
SKU: POR.992.GT3.FFH.BR
Price: 1619.00 USD
Availability: InStock

$1,619.00 USD

~~$1,799.00 USD~~ $1,619.00 USD

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Let customers speak for us

from 81 reviews

Ordered part 15/02/26 ,received 20/02/26. The ordering (Josh/Radhaus) and delivery (DHL) was very efficient and extremely quick .The Radhaus Coolant Vent Line took 40 Minutes to fit and fitted like a glove, Many thanks for your efficient service and advice. Porsche Macan S now running smoothly.

John Scoulelis ( South Africa )

02/28/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

Part came fast, very good quality. Would be nice to have some clamps come with it instead of tie straps at that price, but still a good way to fix your coolant leak for a lot less time/money

Anonymous

02/09/2026

OUT OF STOCK ORDER: RADHAUS 958 CAYENNE Coolant Vent Line Bypass Kit (2015-2018 3.6 V6 CAYENNE S / CAYENNE GTS)

Just received my latest purchase from Radhaus and I’m seriously impressed. The product itself is awesome—high quality and exactly as described. The mailing service was top-notch: fast, reliable, and well communicated. Packaging was done very professionally, clearly with care and attention to detail. Overall, an excellent buying experience. Highly recommended.

Anonymous

02/09/2026

RADHAUS

good stuff

Anonymous

02/09/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

Good service and super friendly

Arthur Duurkoop

02/09/2026

RADHAUS

This X pipe is agame changer for me! The sound better and lower and vibration in my car is gone, I don’t have to drive it in sport mode anymore. Also a lot more response and power. I have downpipes and dit not know what to do. This is the solution!

Arthur Duurkoop

02/09/2026

RADHAUS X-Pipe for Porsche Macan (V6 Models)

The is a great alternative to a very expensive OEM repair. It's not the factory part cost that's the problem, it's the labor and this kit makes for a much easier install.

JCH

02/02/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

I want to thank Josh for all of the help he provided me with regarding product delivery. Both FedEx & UPS were a challenge to deal with due to the late January 2026 snow storm and Josh worked it out to get me my Porsche parts. He is very professional and extremely responsive to emails.
Thank you for the great coolant bypass solution and thank you for your amazing customer service.

Eric (From Connecticut)

Eric from Connecticut

01/29/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

Great service and fast shipping - received overnight. Product is excellent quality and looks to be an easy install. Product like this should have been used by OEM manufacturer instead of cheap plastic that could not stand up to heat and other weather and vehicle conditions. Thanks again!!

Razor95b

01/29/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

Saved two labor hours labor on coolant line repair. Thank you for the making sure the overnight shipment got out so we were able to get back on the road ASAP!

Anonymous

01/29/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

Amazing company, amazing products. Super fast response and shipping to get my Macan back on the road. Thank you

Adam Dossas

01/27/2026

RADHAUS 95B.1 MACAN Coolant Vent Line Bypass Kit (2015-2018 MACAN S / GTS/ Turbo)

This was easily the best online shopping experience I’ve had in years. Not only were the wheels and tires exactly as pictured/described, but Josh patiently answered all my questions and kept me apprised of the progress of the the shipping process.
Josh and RADHAUS specialize in Porsche Macan items, so if you need replacement items for your Porsche, then Josh is your guy.

Sam

01/23/2026

OEM Porsche Macan 20” Turbo Wheels - Choose your Color, Tire Options

Radhaus is the best Porsche Macan performance parts vendor hands down. Fabrication is professional and well done, and service is unparalleled. Josh is always there to answer questions very quickly.

Raul Santiago

01/17/2026

RADHAUS

Best Porsche Macan performance parts vendor and fabricator out there. Service is phenomenal. Highly recommended

Raul Santiago

01/17/2026

RADHAUS Performance Intercooler for 95B.1 (2015-2018) Porsche Macan S / GTS / Turbo

10/10 customer service!! Super fast shipping!! Josh is a legend!

Ryan

01/12/2026

RADHAUS

Return Policy: 1.) All wheels / wheel & tire sets are final-sale, and cannot be returned. This includes refinished and non-refinished wheel sets. 2.) Made-to-order and non pre-fabricated parts including but not limited to: intercoolers and exhaust products, are final-sale and cannot be returned. 3.) All used/pre-owned parts are final-sale, and cannot be returned. 4.) Brand new, stocked items may be returned within 30 days of original purchase, subject to a 10% restocking fee. Returned items must be unused, never installed, and in original new condition for a return to be accepted. Though most items are considered final-sale, we will make every reasonable effort to rectify the situation if you are not satisfied with your purchase. Please email us at SALES@RADHAUSWHEELS.COM with any questions or concerns.

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Porsche 992 GT3 Free Flow Headers

Porsche 992 GT3 Free Flow Headers

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