Only the front pipe? What about the rear pipe?
During our development, we were able to sufficiently tune out the factory rasp without the added expense of replacing another section of of the factory exhaust system. Because of the simplicity, installation can take as little as 20 minutes (with the car on the lift, with proper tools).
What about the others?
For those that looking to eliminate this tone from their E46 M3s, there are a few other choices in the marketplace. However, the RE Rasp Pipe is one of the few that can truly say that performance is uninhibited by the installation of this item. Other "muffler style" designs that use one piece units to try to achieve the same result as our product do so by lowering the cost of the item (it is cheaper to use one muffler than using two, regardless of size). These do have negative effects, as seen in comparable products used in daily drivers.
Flexible and Compatible
Regardless of the exhaust system you choose, the RE Rasp Pipe will do its job in removing the raspy tone.
Note: This is designed to replace the factory US pipe. European versions have catalytic converters in this pipe. Removal of factory installed emissions equipment is not legal in the US.