Our Gravity Performance 2.5″ Exhaust Decat Downpipe
compatible with Vauxhall Astra G / H / MK4 / MK5 / Zafira A / B GSI / SRI / VXR 2.0T
is made from high quality Stainless Steel
this Decat Downpipe will unlock more power from your Z20. By allowing gas to flow freely through the exhaust
our 2.5″ Exhaust Decat Downpipe improves both power and throttle response.
Mandrel bent and fully TIG welded for strength and durability
Free flowing catalyst replacement to get the most from the Z20 engines
Designed to improve power and torque across the entire RPM range
Manufactured from high quality T304 grade stainless steel
Mandrel bent and fully TIG welded for strength and durability
New

Gravity Exhaust Precat & Decat Downpipe – Vauxhall Astra G / H / MK4 / MK5 / Zafira A / B GSI / SRI / VXR 2.0T 16V 02-10

£183.99 inc VAT (£153.33 + VAT)

Our Gravity Performance 2.5″ Exhaust Decat Downpipe, compatible with Vauxhall Astra G / H / MK4 / MK5 / Zafira A / B GSI / SRI / VXR 2.0T, is made from high quality Stainless Steel, this Decat Downpipe will unlock more power from your Z20. By allowing gas to flow freely through the exhaust, our 2.5″ Exhaust Decat Downpipe improves both power and throttle response.

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 Z20 engines
Designed to improve power and torque across the entire RPM range

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 01/05/2026

SKU: Gravity/ZZ01735B Category: Brand:

More Information

Product Information

  • Vauxhall Astra VXR 2.0L 16V Turbo 2005+ models
  • Vauxhall Astra Mk5 SRI 2.0L Turbo 2005+ models
  • Vauxhall Astra Mk4 GSI Turbo Hatchback 2002+ models
  • Vauxhall Zafira GSI Turbo 2002+ models
  • Vauxhall Zafira VXR Turbo 2005+ models

Fitments

  • 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 Z20 engines
  • Designed to improve power and torque across the entire RPM range
Weight 7 kg
Dimensions 123 cm
Length (mm)

1370

Pipe Bore 1 (mm)

61

Sensor Ports

2

Bolts

3 x Studs

Gaskets

1 x Gasket

Tech Specs

Specification

Category Downpipes
Brand Gravity
MPN

ZZ01735B

Ratings