Are Underdrive Pulleys wore the money on a Mustang GT?
I was thinking of adding Steeda Underdrive Pulley's to a 1999 Mustang GT with a 4.6L V8, but they are like $200 so i was wondering if they are worth the money.
P.S. I have already added bbk L/T headers, a bbk off road H-Pipe, magnaflow magnapacks,
Yes they do free up a few ponies but I have removed them from customers car as well. They are slowing down the revolutions your accessories make. The biggest down side is that If your doing alot of quick trips your battery has a hard time being charged