hey, i leased a 2010 audi a4 2.0t and i just installed a straight pipe going from the second resonator all the way to the exhaust and i was wondering if that will void my warranty or its not such a big deal...? thanks!

 

I would be reticent to do any type of engine mod on a leased vehicle or even a vehicle not payed for, especially a luxury vehicle. If you run into an engine issue that must be serviced, dealerships love to blame work not done by them on other mechanics or mechanic that arent trained on those type vehicles. Be careful.