shit man.. it all goes both ways... Ive had people get there car tuned at MSP and then get tuned at IE and make better numbers... soo idk
Also i when i had the four door, I TRIED to get my car tuned at MSP. 2 hours into it he said "its leaning out, and i cant get it to tune rite" so all in all i payed him 280 for a FULL tune.. drove home with NO tune.. Later went to IE and got tuned with NO problems and made 170hp with it