Yeah...that's a mod. That'd make it at least Stage 2, which absolutely requires proper tuning to run. And you have no way to see if the car was tuned...
Tell them that they should fix it at least to factory spec. If they can't then they shouldn't be in business and you will certainly post your reviews...
Computers, Drawing, School, Work and love talking about Subaru's
Biography:
Enlisted in the Marines in 2005. Medically(Honorable) Discharge 2007
Got my Computer Science degree in 2010 and now i work for T-Mobile Corp in Frisco, TX