Manufactured from highest quality T304 grade stainless steel
Mandrel bent and fully TIG welded for strength and durability
Free flowing catalyst replacement to get the most from the B58 engine
Designed to improve power and torque across the entire RPM range
4.5' bore to maximise exhaust flow
 
 
 
 
 
4.5' Exhaust Decat Downpipe compatible with BMW 4 Series F32 F36 440i B58 16-19
replaces the restrictive catalyst with a free flowing pipe
improving power and torque across the RPM range. Our 4.5' Exhaust Decat Downpipe is a great cost-effective way of releasing more power from your 440i.
Manufactured from highest quality T304 grade stainless steel
Mandrel bent and fully TIG welded for strength and durability
Mandrel bent and fully TIG welded for strength and durability
Mandrel bent and fully TIG welded for strength and durability
Free flowing catalyst replacement to get the most from the B58 engine
New

Gravity 4.5 Exhaust Decat Downpipe – BMW 5 Series G30 540i B58 16-18

£210.99 inc VAT (£175.83 + VAT)

Manufactured from highest quality T304 grade stainless steel
Mandrel bent and fully TIG welded for strength and durability
Free flowing catalyst replacement to get the most from the B58 engine
Designed to improve power and torque across the entire RPM range
4.5′ bore to maximise exhaust flow

 

 
4.5′ Exhaust Decat Downpipe compatible with BMW 5 Series G30 540i B58 16-18, replaces the restrictive catalyst with a free flowing pipe, improving power and torque across the RPM range. Our 4.5′ Exhaust Decat Downpipe is a great cost-effective way of releasing more power from your 540i.

Available to order

Fpr Gravity Performance, JapSpeed and Direnza products this is not guarenteed stock availibility and is available to order on demand

Estimated delivery by 02/06/2026

SKU: Gravity/GPED046A-BM5 Category: Brand:

More Information

Product Information

  • BMW 5 Series G30 / G31 540i B58 2016-2018 models

Fitments

  • Manufactured from highest quality T304 grade stainless steel
  • Mandrel bent and fully TIG welded for strength and durability
  • Free flowing catalyst replacement to get the most from the B58 engine
  • Designed to improve power and torque across the entire RPM range
  • 4.5″ bore to maximise exhaust flow

 


 

4.5″ Exhaust Decat Downpipe compatible with BMW 5 Series G30 540i B58 16-18, replaces the restrictive catalyst with a free flowing pipe, improving power and torque across the RPM range. Our 4.5″ Exhaust Decat Downpipe is a great cost-effective way of releasing more power from your 540i.

Weight 3.5 kg
Sensor Ports

2

Flexi-Joint

1

Length (mm)

620

Pipe Bore 1 (mm)

110mm – 76mm

Tech Specs

Specification

Category Downpipes
Brand Gravity
MPN

GPED046A-BM5

Ratings