I own & drive a 1.9 CDTi (100bhp, 6speed) Vivaro as I am a self employed plumber. What I am wondering is if it can be tuned to give the same power as say the 150 bhp Astra which I assume has the same engine? I know that dieseltuning.co.uk can supply a plug & play box but that only takes it to around 140bhp, but the Astra tuning box takes it to around the 190bhp mark.
Would it be too much to have 190bhp in a van
Also, what other mods can be done in regards to airbox & air intake etc to improve these?
Any help appreciated.
P.S. Already have an Irmy grille fitted