Gravity Performance decats instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our decats are designed to be direct replacements for the OEM catalytic converter
ensuring smooth installation every time.
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 B48 engine
Designed to improve power and torque across the entire RPM range
Decibel Readings:
Stock Valves Closed: 67.2
Stock Valves Open: 66.1
New

Gravity Exhaust Decat Downpipe – BMW 1 Series F20 120i 125i B48 15-19

RRP: £194.99

£177.99 inc VAT (£148.33 + VAT)

Gravity Performance decats instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our decats are designed to be direct replacements for the OEM catalytic converter, ensuring smooth installation every time.

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 B48 engine
Designed to improve power and torque across the entire RPM range

Decibel Readings:
Stock Valves Closed: 67.2
Stock Valves Open: 66.1
Decat Valves Closed: 69.6
Decat Valves Open: 71.2
by Gravity

Available to order
Estimated delivery by: 25/05/2025

SKU: Gravity/EXDC143-1 Category: Brand:

More Information

Product Information

Gravity Performance decats instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our decats are designed to be direct replacements for the OEM catalytic converter, ensuring smooth installation every time.

  • 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 B48 engine
  • Designed to improve power and torque across the entire RPM range

Decibel Readings:

Stock Valves Closed: 67.2

Stock Valves Open: 66.1

Decat Valves Closed: 69.6

Decat Valves Open: 71.2

Fitments

  • BMW 1 Series F20 120i, 125i B48 2015-2019 models

Please note this decat is only suitable for facelift models with the B48 engine

Weight3.5 kg
Sensor Ports

2

Pipe Bore (mm)

88.9-76

Flexi Joint Length (mm)

100

Tech Specs

Specification

CategoryDownpipes
BrandGravity
MPN

EXDC143-1

Ratings