Over $6000 to install TTI headers on 66 Barracuda

The mechanic who has done most of the work on my car and friends is charging me over $6000 for the install of TTI headers on my 66 barracuda The sad part, the work is not completed. He called and asked for a payment. This is turning into a nightmare of a experience

Don't give him a cent. You are being extorted. I recently went thru a similar situation with my wife's car. After a well worded letter to the service manager and the general manager of the dealership, today the general manager agreed to send me a check for $1,000.00, the amount I needed to keep it from going to court. Do your homework. You need not feel like you are at the mercy of an incompetent mechanic that has racked up a ridiculous bill.