HJS ECE Downpipe with 300 cells sportcatalyst for the BMW 1 and 3-series models with N55B30A engines wtih E5 emission class
Downpipes are dimensionally involved in the points of draft and performance.
They are the "link" between the exhaust probe and the exhaust system.
The catalyst developed by the HJS Tuning experts has gone through all stages of development. Made from dome thermosol encased, now available a high tech tuning product for BMW riders.
The significantly reduced exhaust backpressure of the HJS tuning catalyst is not only for reduced temperatures in the turbocharger, but also for a significantly better response of the engine.
Of course, a performance and torque improvement is to be checked exactly. In addition, the metal carrier used provides even for a sonorous sound.
With the ECE approval, a booking in the vehicle documents is required, nor is the manufacturer's warranty changed because the test is performed on a foreign part.
Suitable for the following E5 models:
Model Type KW
M135i xDrive F21/1K2 235
M135i xDrive F20/1K4 235
335i Limousine F30/3L 225
335i xDrive Limousine F30/3L 225
335i Touring F31/3K 225
335i Touring F31/3K 240