Upgrade stage up to 165 Hp for the 1.7 CDTI engine found in Opel Astra. 

Stage 1 upgrade, is presented below.

Stock engine specs:    

Capacity: 1686cc                           
bore x stroke: 79 x 86 (mm)
Compression ratio: 18:1
Turbocharger: Garrett GTB15V

Power: 110 & 130hp
Torque: 260 & 300Nm

Stage 1: 

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Power: 165hp
Torque: 350Nm

 

Stage 1 - DPF OFF:

Engine upgrades:

-DPF Filter remove
-Stage 1 & DPF Removal Software upgrade

Engine performance:

Power: 172hp
Torque: 360Nm

Software upgrades:

Boost control is achieved using the OEM ECU and N75 valve.