t2 boost brotha

hey guys well i just did some major work to my car like last month. full rb exhuast fmic stance coil overs. so i go to the shop and get my coil over installed and i get a call back like we test drove the car to make sure yur alighment was coo then your car cut off. so we got it towed back to the shop they said it wont hold idol. im wondering if it is by the turbo like the filter arm is knock off a little cause that happned to me alreday but there a shop and it wouldnt be that hard to spot so wat else are 87 t2 air flowing issues? thanks guys and happy holidays