Gravity Performance decats are made to completely replace the stock catalytic converter eliminating all restrictions. Our Performance decats improve throttle response and allow for improved exhaust flow increasing power and torque.
Mandrel bent and fully TIG welded for strength and durability
Free flowing catalyst replacement to get the most from the N54 engine
Designed with flexi's to reduced strain on the exhaust system
Sold for off road and track use only
Manufactured from high 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 N54 engine
Designed with flexi's to reduced strain on the exhaust system
Sold for off road and track use only
Manufactured from high quality T304 grade stainless steel
New

Gravity Exhaust Decat Downpipes – BMW 1 Series 135i 1M E82 E88 N54 07-12

RRP: £184.99

£170.99 inc VAT (£142.49 + VAT)

Gravity Performance decats are made to completely replace the stock catalytic converter eliminating all restrictions. Our Performance decats improve throttle response and allow for improved exhaust flow increasing power and torque.

Manufactured from high 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 N54 engine
Designed with flexi’s to reduced strain on the exhaust system
Sold for off road and track use only

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 11/06/2026

SKU: Gravity/ZZ03929-LF-1 Category: Brand:

More Information

Product Information

BMW 1 Series E82 / E88 135i N54 engine 2007-2010 models
BMW 1 Series 1M E82 N54 2011-2012 models
BMW 3 Series E90 / E91 / E92 / E93 3.0l 335i N54 engine 2005-2011 models

Fitments

Gravity Performance decats are made to completely replace the stock catalytic converter eliminating all restrictions. Our Performance decats improve throttle response and allow for improved exhaust flow increasing power and torque.

  • Manufactured from high 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 N54 engine
  • Designed with flexi’s to reduced strain on the exhaust system
  • Sold for off road and track use only
Weight 5 kg
Length (mm)

440/540

Pipe Bore 1 (mm)

63

Sensor Ports

4

Tech Specs

Specification

Category Centre Sections & Resonator Deletes
Brand Gravity
MPN

ZZ03929-LF-1

Ratings