seatys501
New Member
Hello all. I have a 08 180 challenger and this year i want to upgrade my impellor. Anyone know a good performance impellor that may increase top speed and where to get it and how much to expect it to be? I would like to have my mechanic install it next month. Also, are there any exhaust modifications that can be made to increase HP or give it a better sound? My mechanic mentioned removing something off of the exhaust maybe. thanks for the help.
