flowmaster 40 series tone change

I have Flowmaster 40s on my 383 Dart.

They sounded good to me before, then I cut in a "H" crossover. They still sound great and if anything, my Butt Dyno tells me that it's a bit quicker..also the drone at about 2000 RPM is gone.

Butt Dyno



http://kalecoauto.com/index.php?main_page=product_info&cPath=7&products_id=41