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This 2bular 4-1 manifold uses a stepped primary pipe and hand-built/TIG-welded 4-1 merged collector (not pressed tin). The laser-cut, 10mm thick stainless head-flange has expansion slots cut into it to allow for the expansion of this material. I don't just copy the factory gasket for the shape of this part.
In independent testing against other after-market offerings, this 2bular design came out tops for power AND torque.
The HJS HD 200cell Sports Cat is perfect for a road-going sportscar looking to meet any emissions tests and still improve gas-flow and performance.
A new gasket is supplied for the cylinder head/manifold join.
PLEASE NOTE: I DO NOT SUPPLY THE LAMBDA SENSOR ANY MORE - TOO MANY BOSCH FAILURES.
EXPORT PRICE (No VAT charge): 1414 .00GBP
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