Local customer needed a poorly vehicle sorting out. This one was down on power..... and for me to find out why. This is a 2001 Vw T4 2.5 tdi 102bhp model. As the first dyno graph shows it’s well down on power and torque with just 84bhp and 196nm. So after some data logging on our maha rolling road, we see that the maf reading is way out. Check the maf and the air box and air filter...... boom, air filter is dripping wet from a damaged air box. Second graph shows after new air filter fitted and box repaired. But still low bhp and torque, another data log shows maf reading is still way out.!! New genuine maf and boom, there she is. 133bhp and 317nm. Customer drove home and sent a message saying far better than he thought and is buzzing 😜😍💋✅✅ #pptuningexhaust #pendleperformance #vwt4tuning #vwt4tuning😎😎😎 #onlythebest #awesone (at Pp Tuning - Pendle Performance Dyno agent.) https://www.instagram.com/p/CKfJR1Os3Pk/?igshid=stgt9lnmj0m9