Terrafirma - Down Pipe - Stainless Steel - De Cat - TD5

Terrafirma - Down Pipe - De Cat - TD5

The Terrafirma TD5 de-cat down pipe is engineered to boost performance and fuel economy in diesel engines fitted to Defender 90, Defender 110, Defender 130, and Discovery 2 models (1998-2007). This direct-fit component eliminates the need for modification while bypassing the restrictive catalytic converter, instantly freeing up exhaust flow. Pair it with the Terrafirma silencer replacement pipe to remove the factory centre silencer and unlock a more aggressive exhaust note alongside enhanced throttle response and efficiency. Constructed from 1.5mm 409 stainless steel, these pipes deliver superior longevity compared to original equipment. Grade 409 ferritic stainless steel is specifically formulated for automotive exhaust applications, offering excellent bendability and weldability without the vibration-induced cracking common to other stainless grades. The material resists atmospheric and exhaust corrosion effectively, though light surface patina may develop over time—a natural protective layer that does not compromise durability. Avoid costly catalytic converter replacement by upgrading to this proven performance solution.

Download Install Instructions

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Fits Defender 90 | Defender 110 | Defender 130 | Discovery 2

Usually ships in 1-2 weeks