I have a 2001 PT LTD and have just replaced the air filter with an Airraid unit (low restriction). Does anyone have an idea if removing the stock muffler and replacing it with a lower restriction muffler would help performance?
My car is an automatic and for the most part I am quite happy with it's performance. It's a little pokey off the line but in the 35-70 range it has more than enough zip for my needs. Wouldn't mind a moderate rumble coming from the exhaust though.
