Rogue Engineering E46 M3 Rasp Pipe - Rogue Engineering specializes in high performance upgrades for BMWs.

Rogue Engineering is proud to introduce our E46 M3 Rasp Pipe, the sensible way of getting rid of that nasty factory exhaust rasp. Finally, you can truly enjoy the sound of your M3 without the annoying, Honda Civic-buzzing-like rasp of the exhaust at the higher RPMs found in US-model E46 M3s.

Recent Testimonials from Rogue Engineering Customers

Thank you!

Had I known how fantastic your Rasp eliminator worked, I would have bought it a year ago when I purchased my M3 used from Southpointe BMW. When I pointed out the noise, like a heat shield lose or broken, the service writer said (with a straight face) oh, they all do that.

I had the pipe install this AM, took a picture, since I probably won't see the work of art again, and took it out for a test drive. You know the feeling when you've been sick, get use to it, then wake up and feel great, or when you have splinter in your hand (just a tiny thing) but how you go ahhhhhh when it's out. THAT is the feeling I had this AM when I drove my NEW M3 to work. Now, later the next step. Xpipe soon.

Thanks again for a great product and service.

Tom Bannon, Sarasota, FL

I received the Rasp Pipe last Monday, installed it myself in a couple of hours and ……voila! The rasp is gone! I really like the sound that the engine makes with the rasp removed (i.e. the way an engine should sound!). This is a great product. I am a mechanical engineer with a graduate degree in materials engineering, so I have some sense for the science that has gone into developing this technology. I must admit, I was a little skeptical before trying it, but not any more. Thanks for delivering a perfect solution to my M3 rasp problem at a fair price.

Craig Monahan, The Woodlands, TX

High Quality Materials, Factory Like Fit
The RE Rasp Pipe is made to fit exactly like factory. Features of the unit include:

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.