The Terrafirma range of 'de-cat' down pipes and silencer replacement pipes are intended to improve the performance and economy of diesel Land Rovers.

Save a fortune when your catalytic converter fails by fitting a Terrafirma 'de-cat' down pipe and enhance the performance and economy by derestricting the exhaust system. UK MOT regulations suggest a maximum weight limit, above which a catalytic converter is not required. This permits replacement exhaust systems to be fitted. These pipes fit directly to the original system and require no modification. Remove the power restricting and vulnerable centre silencer and fit a Terrafirma free flowing silencer replacement pipe and enjoy the new throaty exhaust sound.

Defender/Discovery 1/Range Rover Classic

Made from 1.5mm 409 stainless steel these pipes will considerably outlast the life of the existing original system. 409 is easier to bend and weld and is not prone to cracking due to vibration like other grade of stainless steel.

Suitable for following models:

• Defender / Discovery 1 / Range Rover Classic 300tdi from 1994-1998 only

Defender 2.4 TDCI

Made from 1.5mm 409 stainless steel these pipes will considerably outlast the life of the existing original system. 409 is easier to bend and weld and is not prone to cracking due to vibration like other grade of stainless steel.

Suitable for following models:

• Defender 2.4 Tdci (TD4 2007 onwards)

Defender TD5/ Discovery 2 

Made from 1.5mm 409 stainless steel these pipes will considerably outlast the life of the existing original system. 409 is easier to bend and weld and is not prone to cracking due to vibration like other grade of stainless steel.

Suitable for following models:

• Defender TD5 / Discovery 2

Discovery 3 / Range Rover Sport 

Made from 1.5mm 409 stainless steel these pipes will considerably outlast the life of the existing original system. 409 is easier to bend and weld and is not prone to cracking due to vibration like other grade of stainless steel.

Suitable for following models:

• Discovery 3
• Range Rover Sport L320