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THE-Cast High Flow exhaust manifolds for Audi RS4 2,7 T / S4 / A6 4B

THE Manifolds were designed for maximum performance.

The design of the entire manifold from the cylinder head to the turbocharger was to generate the maximum gas flow.

The positioning of the turbocharger is as OEM so are Plug & Play.

Manifold inlet runners: 38,4 mm
Manifold outlet to turbo: 44,3mm ( Matched for TTE CNC porting turbo hot side outlet)

The advantage is not just its construction but also in the chosen material.

THE manifolds are made of cast steel 1.4848 and differ significantly from cast-iron D5S. The main differences between the two materials lie in durability

Maximum use temperature (temperature in air):
1.4848: 1.100 ° C
D5S: about 950 ° C(BorgWarner Turbine housings)

Tensile strength:
1.4848 min. 450N/mm ²
D5S: 370N/mm ²

Elongation:
1.4848: A10 (%) = 8
D5S: A5 (%) = 10

Hardness (HB):
1.4848: 160-220
D5S: 130-170

THE-Manifolds were designed and are manufactured in Europe.