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
 
 
 
 
Our 4.5' Exhaust Decat Downpipe compatible with BMW 3 Series 340i B58 15-19 is the perfect way to release more power from the B58 engine. With a more free flowing pipe than OEM
 
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
New

Gravity 4.5 Exhaust Decat Downpipe – BMW 1 Series F20 M140i B58 16-19

RRP: £229.99

£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

 

 
Our 4.5′ Exhaust Decat Downpipe compatible with BMW 1 Series F20 M140i B58 16-19, manufactured from T304 Stainless Steel for maximum durability and strength, produces instant power gains across the rev range. this 4.5′ Exhaust Decat Downpipe improves gas flow, thus improving throttle response and torque as a result.

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 05/06/2026

SKU: Gravity/GPED046A Category: Brand:

More Information

Product Information

  • BMW 1 Series M140i B58 2015+ 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

 


 

Our 4.5″ Exhaust Decat Downpipe compatible with BMW 1 Series F20 M140i B58 16-19, manufactured from T304 Stainless Steel for maximum durability and strength, produces instant power gains across the rev range. this 4.5″ Exhaust Decat Downpipe improves gas flow, thus improving throttle response and torque as a result.

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

Ratings