BMW X7 M50i G07: the N63 V8 in the service of true luxury, the exhaust system guide

The N63: a biturbo V8 built to move the X7 with ease

The N63 is a 4.4-litre V8 boosted by two turbos placed in the centre of the V, between the two cylinder banks. In the X7 M50i, it produces 530 hp and 750 Nm, sent to all four wheels. Its massive torque, available very early, masks the car's size: the X7 accelerates with a smoothness and force more reminiscent of a large saloon than of an SUV of this size.

In an SUV designed for the silence of its occupants, the factory exhaust's mission is to make you forget the V8, and it fulfils it all too well. Without touching the mechanicals or the electronics, the Rog valved exhaust gives you back the choice. Day to day, the closed valves preserve the atmosphere of a lounge on wheels. Whenever you decide, the N63 regains the deep, broad voice of a true eight-cylinder.

How the exhaust on your BMW X7 M50i G07 is put together

An exhaust system is best understood in two parts. Here is what each one does, and what Rog replaces.

Your BMW X7 M50i G07 in figures

What an exhaust changes straight away is the sound, the engine's breathing and the weight at the rear. For more power, add an ECU remap.

Published factory and Stage 2 figures.

With or without an ECU remap, the exhaust fits and works. But it is an ECU remap at an approved tuning centre that truly unleashes your BMW X7 M50i G07, and that is what we recommend.

The N63 has a comfortable reserve, which a Stage 2 remap can exploit by working on the pressure of the two turbos, together with suitable downpipes. On a vehicle of this standing, this work deserves a rigorous tuner, and the result cannot be promised in advance; the Rog exhaust is its foundation.

Configuring your exhaust, step by step

3 choices, in the same order as the product page configurator.

1. 1

   Step 1 of 3: Material: stainless steel or titanium

   Titanium costs more than stainless steel; the price of each version is shown on the product page, in your currency.

   304 stainless steel

   Weight

   Baseline

   Sound

   Full and rounded

   Durable, corrosion-resistant, with a rounded, full sound: the most popular option.

   Titanium

   Weight

   Around 40% lighter

   Sound

   Metallic, crystal-clear

   For the same design, it weighs around 40% less than stainless steel. A more metallic note at high revs and a look all of its own, from brushed to blued.

   Both materials age well: 304 stainless steel copes with winter and salt, and titanium does not rust. Stainless steel or titanium: what really changes.

2. 2

   Step 2 of 3: Front section: downpipe and catalytic converter

   Optional: the downpipe on your BMW X7 M50i G07, with its catalytic converter. Sound rating out of 10, valves open: the factory exhaust sits at 3.

   Cat-back only

   Included

   7/10

   Factory emissions control

   Nothing changes at the front: the cat-back alone is already enough to change the car.

   200-cell sports catalytic converter

   8/10

   Road use and inspection

   The everyday compromise: emissions control is still there, and breathing improves noticeably.

   100-cell sports catalytic converter

   9/10

   Inspection: depends on local rules

   One step further: more flow, a more aggressive sound, reduced emissions control.

   Decat

   10/10

   Track use

   Everything unleashed: maximum flow and unrestrained sound, for the track.

   Sound intensity, on a scale of 0 to 10

   1. 10/10Decat downpipe + Rog cat-back
   2. 9/10100-cell sports catalytic converter + Rog cat-back
   3. 8/10200-cell sports catalytic converter + Rog cat-back
   4. 7/10Rog cat-back only, factory catalytic converter retained
   5. 3/10Factory exhaust, for comparison

   Valves open. With the valves closed, every configuration becomes discreet again.

   What about the engine warning light? With a sports cat, it can come on with some engines: the sensor placed after the catalytic converter measures a different level of emissions control from the original. It is not a mechanical failure, but a warning light should never be masked or cleared without dealing with its cause: the right answer is a catalytic converter suited to the engine, with a map by a tuner who takes it into account. The decat version, for track use only, almost always triggers it. If this happens to you, write to us and we will point you in the right direction. Passing vehicle inspection with a sports exhaust.

3. 3

   Step 3 of 3: Valves: Rog remote or factory control

   Two ways to control the valves on your BMW X7 M50i G07.

   Rog remote

   

   The simplest solution: a control unit in the boot and a remote, open or closed at the press of a button, whatever mode you are in. A question while fitting? We will get back to you.

   Factory control

   • Only for vehicles fitted with factory valves
   • Controlled by the drive modes

   Does your vehicle have factory valves? The exhaust keeps their existing control: the drive modes operate the valves, as before, with no added electronics.

   On a long journey, what matters is the absence of drone at a steady speed. With the valves closed, the exhaust keeps the cabin calm; the show is still there whenever you ask for it. More about exhaust drone.

The Rog sound signature on the X7's N63 V8

The X7's biturbo V8 has a deep, velvety tone, with the slight burble typical of eight-cylinder engines. But BMW did everything to keep it a murmur: the factory exhaust, combined with the cabin's careful insulation, relegates it to a distant rumour, well below what this engine can offer.

On this model, two characters at the same price: the straight pipe for the raw sound of your engine, unfiltered, or the resonator for a rounder and slightly softer voice. Either way, the exhaust stays fully sporty.

With the Rog exhaust and the valves open, the X7 gains an unexpected presence for a vehicle of this standing: a deep growl at start-up and a broad, steady rise under acceleration. With the valves closed, it regains the calm of a lounge, perfect for long journeys with six or seven on board.

From order to fitting

1. Configuration

   You choose the options for your BMW X7 M50i G07 and enter its VIN, found in box E of the registration document or at the base of the windscreen.

2. Check

   We confirm compatibility with your car before we build it.

3. Manufacturing

   Made to order, for your BMW X7 M50i G07.

4. Delivery

   Free, insured delivery, with tracking sent on dispatch.

5. Fitting

   Clamps and gaskets, no welding: two hours on average at the garage of your choice.

20 working days from order confirmation to delivery

Warranty

3 years, parts and workmanship, from the date of purchase

Payment

Card, PayPal or bank transfer

Installation

At the garage of your choice

What about the manufacturer's warranty? In Europe, fitting a part from another brand is not enough on its own to void it; the manufacturer has to prove the link between that part and the fault. Our article on the manufacturer's warranty.

Our recommendations for your BMW X7 M50i G07

• Daily driving

  • Stainless
  • Cat-back only
  • Rog remote

  Your BMW X7 M50i G07 stays easy to live with, the factory emissions control is retained, and you open the valves when you decide.

  View this configuration

• Fast road

  • Titanium
  • 200-cell downpipe
  • ECU remap

  For great roads: more voice and more response, while staying road-friendly.

  View this configuration

• Track

  • Titanium
  • Decat downpipe
  • Stage 2

  The most extreme configuration, for track use only.

  View this configuration

These profiles are starting points. The right choice is often made in a few messages.

BMW X7 M50i G07: your questions

Further reading

• All BMW exhaust systems
• BMW M550i N63 G30 4.4TT
• BMW X6 M50i G06 4.4TT
• BMW M5 F10 4.4TT
• Stage 2: the role of the downpipe
• How to pass vehicle inspection with a modified exhaust
• Exhaust resonator: what does it do?
• The 28 brands we cover