BMW 7-Series G11 Downpipes – Catted & Decat Performance Exhaust Upgrades

BMW 7-Series G11 Downpipes – Unlock the True Performance of Your Luxury Sedan

The BMW 7-Series G11, produced from 2015 to 2022, represents the short-wheelbase variant of BMW’s flagship executive sedan. Combining cutting-edge technology, powerful turbocharged engines, and refined luxury, the G11 delivers exceptional comfort and performance. However, the restrictive OEM downpipes limit the full potential of its engines. Upgrading to BMW G11 performance downpipes is one of the most effective modifications to unleash hidden horsepower, improve turbo response, and achieve a deep, motorsport-inspired exhaust tone.

Why Upgrade to BMW G11 Performance Downpipes?

Stock downpipes are designed to comply with emissions and noise regulations, but this compromises exhaust flow and performance. Installing BMW 7-Series G11 downpipes offers several advantages:

• Significant horsepower and torque gains – optimized exhaust flow improves engine breathing and power output.
• Faster turbo spool – reduced turbo lag and sharper throttle response for quicker acceleration.
• Enhanced exhaust sound – catted downpipes provide a refined sporty tone, while decat downpipes deliver an aggressive, motorsport-inspired roar.
• Lower exhaust gas temperatures – better thermal management protects key components during spirited driving.
• Perfect for ECU tuning – essential for Stage 1, Stage 2, and hybrid turbo upgrades.

Types of BMW 7-Series G11 Downpipes

Our BMW G11 downpipes are available in multiple configurations to match your driving style and tuning goals:

Catted BMW G11 Downpipes

Catted downpipes feature high-flow catalytic converters, improving exhaust efficiency while maintaining emissions compliance. Perfect for daily-driven builds in regions with emissions testing.

Decat BMW G11 Downpipes

Decat downpipes remove catalytic converters entirely, providing unrestricted flow and maximum power gains. Recommended for track builds or areas without emissions restrictions.

Material Options: Stainless Steel & Titanium

The choice of material impacts durability, weight, and thermal efficiency:

• Stainless steel downpipes – cost-effective, corrosion-resistant, and ideal for most builds.
• Titanium downpipes – lightweight, heat-resistant, and engineered for motorsport-level performance.

Engine Compatibility

Our BMW 7-Series G11 performance downpipes are designed for multiple petrol, diesel, and hybrid powertrains:

• BMW G11 730i / 740i Downpipes – optimized for B48 and B58 turbocharged petrol engines.
• BMW G11 750i Downpipes – engineered for the N63 twin-turbo V8 for maximum power gains.
• BMW G11 730d / 740d Downpipes – performance solutions for six-cylinder diesel engines.
• BMW G11 750d Downpipes – designed for the triple-turbo B57 diesel powertrain.
• BMW G11 745e / 745Le Downpipes – optimized for plug-in hybrid variants.
• BMW M760Li G11 Downpipes – extreme-performance upgrades for the N74 twin-turbo V12 engine.

Performance Gains with BMW G11 Downpipes

Swapping restrictive OEM downpipes for BMW G11 performance downpipes delivers noticeable gains:

• +30–50 HP with downpipes alone.
• +60–110 HP when paired with Stage 2 ECU tuning.
• Increased torque delivery for better mid-range performance.
• Sharper throttle response and reduced turbo lag.

Choosing the Right Diameter

The optimal downpipe diameter depends on your tuning setup and performance goals:

• 2.5-inch downpipes – ideal for Stage 1 builds and lightly tuned cars.
• 3-inch downpipes – recommended for Stage 2 upgrades, hybrid turbos, and higher boost applications.
• 3.5-inch downpipes – best suited for extreme builds, especially for N63 and N74 twin-turbo engines.

All our BMW G11 downpipes are designed for direct bolt-on installation using OEM-style flanges and fittings.

Build Quality & Engineering

Every BMW G11 performance downpipe is manufactured to meet the highest quality standards:

• Mandrel-bent tubing ensures smooth, unrestricted exhaust flow.
• High-grade stainless steel or titanium construction.
• Precision TIG welding guarantees durability and leak-free performance.
• OEM-style fittings and flanges for perfect integration.

Tuning Potential

Pairing your BMW G11 downpipes with ECU remapping unlocks the platform’s full potential:

• Substantial horsepower and torque improvements.
• Optimized fueling, ignition timing, and boost strategies.
• Custom exhaust profiles based on catted or decat configurations.

Daily Driving vs Track Builds

For luxury sedans used daily, catted downpipes deliver balanced performance and emissions compliance. For dedicated performance builds, decat downpipes provide maximum flow, aggressive tone, and peak power output.

Conclusion

Upgrading to BMW 7-Series G11 performance downpipes is one of the most effective ways to improve power, turbo spool, and exhaust tone. Whether you choose catted or decat downpipes, our range guarantees premium build quality, perfect fitment, and proven performance gains. Transform your BMW G11 today.