[750hp]

For the racers that are required to run their cars to a decibel limit - what type of muffler packing do you use that can stand up to a weekend of racing? My nice, deep sounding pipes almost sound like open headers since I took the car to the track and burnt up the muffler packing. The pipes run hot enough to turn gold and blue out on the track, but the worst part is when I get to the hairpin corner after the 165mph back straight. On deceleration, there are flames about 1 foot long that flow from the pipes. Looks good, but kills mufflers...

The only muffler material that I can think would work is stainless steel wool, but is this an effective material for keeping the car under track noise limits?

I plan on also using spiral inserts on the street, but removing them for the track.

Thanks for any help,

Craig