M135i (F20/21) PWG Powervalve Turbo Back System
Tags: BMW, turbo back system, N55, M135i
M135i (F20/21) PWG Powervalve Turbo Back System
Available Options
Due to the uniqueness of our products and the way in which they are manufactured, there may at times be a production delay of up to 4 weeks from the initial purchase date.
If you would prefer to pay a deposit at this stage please contact us for details on how to arrange that as an alternative, with the balance payable on the shipping date.
The Powervalve REV III Turbo-back (with 100 Cell Cat) SPORT exhaust for the M135i N55 (Pneumatic Waste Gate Variant), provides you with a perfectly balanced sports tone both externally and internally above the stock exhaust note when the car is running off boost (Cruising and driving sedately). However, as you are no doubt already aware if you are looking to create the best possible audible thrill...
Powervalve offers a unique perspective on exhaust technology, providing the driver with the option of two distinct natures. When the car is pottering around or cruising the sound is at once uplifted and noticeable yet controlled and non-intrusive. However, once the car is driven aggressively and produces a key level of boost pressure everything changes and the sound becomes purposeful and redefined reflecting the true essence of the M135i. All of which are under the complete control of your right foot, therefore, you determine the sound minute to minute depending on your particular driving requirements. By using this unique interaction, the driver ceases to become desensitized in the way you would with a non-variable sound, leaving you looking for more time behind the wheel...
The system has a greater audible volume than the cat back offering, however, with careful design and development we have created a system that ensures that any unwanted in car frequencies are removed, leaving you with a perfect drone-free experience, together with our characterful pop and burble, free-revving sound.
The primary use for the Sport variant system with 100 cell cat is the road and or track road, as this product is fully road legal.
As with virtually all of the N55 engined vehicles, there is very little performance gain to be had from the cat-back system on its own, due to the incredibly restrictive downpipe and OEM cat. However, by opting for our unique downpipe and high flow cat the power potential will massively increase, firstly with an initial 22bhp kinetic, and then once mapped the N55 Engine can achieve in excess of 450 bhp with our full turbo-back system and 100 Cell Cat
Is my car the Pneumatic Waste Gate variant, or the Electronic Waste Gate variant?
If you look to the left side of the engine, next to the water header tank, you should see the following configuration as shown below.
If you can see the empty bracket with the bolt protruding as shown below, then you have the electronic wastegate variant, in which case navigate back to our parts list to select the appropriate part.
