First of all I like to introduce my self to the forum. My name is Jay Motwani and I live in Fort Lauderdale. I have a 2005 Ford Gt White with Blue Stripes. I decided to do some minor upgrades. I selected Heffner Performance for this task. I couldn't been Happier. I have done business with many high performance shops and refuse to ship my car and wire money to have performance work done. I have found this to be a troubling relationship. My goal was to have a ford racing exhaust installed with headers, cat delete and a ford racing muffler installed. Heffner pulley Installed, Heffner tune and K&n installed. All to be complete in one day with a dyno pull at the end to see the true Hp gain. I contacted Jason with these requests. Although he stated it would be tough to complete, he has done it before. I arrived at his shop at 8:00 am. He immediately put 2 of his ford gt mechanics on the car. By 8:30 am my car was being dismantled. By lunch the whole rear end of the car was dismantled and the factory exhaust was removed. By 4pm the car was finished with the new exhaust, pulley, tune and K&n were installed. We dyno the car at about 5 pm and the car made 648 rwhp. What a difference. I arrived home by 9pm that night truley satisfied. This is a tesimony to Jason unbelieveable customer service!! I strongly recommend Jason Heffner!!!