Racing Dynamics Catted Downpipe M340 M440 **NEW PRODUCT**

[Extreme Power House]

Catted Downpipe w/HS for BMW M340I/440i XI, G series 2019 on with B58 3.0 L I6 turbo engine.
Sport cat reduces the largest restriction in your exhaust. 4 1/2" input flange with 4" mandrel bent downpipe manufactured out of 304 stainless steel, TIG welded with brushed finish. For left hand drive models only!

Features:
Straight-through design allows for maximum power and sound.
Straight-through tubing section replaces the heavy and restrictive OEM catalytic converters for maximum power and sound
Includes flex joint to reduce vibration from the engine and allows alignment during installation
Improves horsepower and torque significantly. Approximately 25 HP with a tune.
Direct bolt-on replacement for OEM primary catalytic converters
Includes 200 cell Euro 5 sport cat
With heat shield to conduct the heat away from the engine and engine compartment
Less thermal load on the turbocharger
Reduces turbo lag


Applications:
BMW 340i/ix B58 motor, G20 2019 on
BMW 440i/ix B58 motor, G20 2019 on
BMW 540i/ix B58 motor, G30 2019 on
BMW 840i/ix B58 motor, 2019 on
Toyota A90 Supra B58 motor 2019 on

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[Awales74]

Never seen a bedazzled downpipe...

"With heat shield"

Is that a wrap? Never thought you were suppose to wrap street car headers. Race cars and draggsters were ok because of limited milage and high frequency of maintanance. Will the wrap hold moisture and increase oxidation and rust?

 

[Extreme Power House]

The heat shield is extra; I like it as it makes the downpipe different than other options offered on the market.

In my opinion, the heat shield has no real downside, but realistically you won't get much benefit from it outside the track either.

 

[zrk]

the heat shield has no real downside, but realistically you won't get much benefit from it outside the track either.

Yup.

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