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A high-performance redesign of the OEM manifolds, these Evolution Exhaust manifolds eliminate the bottlenecks in the path between the engine and turbochargers for enahnced throttle response, faster turbo spool-up and higher top end power capability.
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This set of Wagner Tuning Cast Evolution
Exhaust Manifolds for the B5 generation Audi S4/RS4 is a
high-performance redesign of the OEM exhaust manifolds. This redesign
eliminates the "log" style header design that reduced the exhaust
gas-flow to a power-robbing bottleneck. Wagner Tuning's engineers have
extensively reworked the OEM design to remove the restrictions
altogether in a 3-into-1 merged collector design, allowing exhaust gases
to travel unrestricted from the engine to the turbochargers.
The enhanced design of these exhaust
manifolds gives your S4 or RS4 the added benefits of increased throttle
response, faster turbo-spool up and improves top end performance
allowing for an overall higher power output than without the manifolds.
Manufactured using a style called
Investment Casting (Lost Wax), Wagner Tuning is able to achieve a very
finely detailed structure in their casting, and this is the same method
used by VAG to produce their OEM TFSI manifolds and turbocharger exhaust
Note: The Driver's Side
Downpipe requires some adjustment for fitment or Wagner can supply their
own downpipe to suit.
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