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Rogue Engineering E46 M3 RASP Pipe (Ver 2.1)

Your Price: $575.00
Part Number:RE.MID.E46M3.2

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Hardware Kit
12/3/21:  Inventory has arrived and backorders have shipped.  We can count on one hand how many we have left.  No more arriving until late Spring 2022.

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.  A perfect compliment to our E46 M3 X-Pipe and El Diablo exhaust system.  


Rogue Engineering RASP Pipe (Ver 2.0) and the factory OEM Section 1


RASP Pipe (Ver 2.0) Pipe Installed

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

  • Fully mandrel bent tubing, no crimps or flattened areas.
  • V2.1 now incorporates a one-piece flange to connect to any section 2!
  • 100% T-304 stainless steel, TIG welded construction.  
  • Dual 2.5" OD pipes (stock is 2").  More flow!
  • Weighs only 15.5 lbs. (factory weighs 14.5 lbs.)
  • Will not change ground clearance
  • Will not void factory warranty
  • Will not affect emissions
  • No permanent modifications required for installation
  • Optional available hardware kit sold separately.

Version 2; Changing with the times
For many years, we have been successfully selling our V1 RASP pipe for E46 M3 owners.  So popular was that many others were trying out their own version.  However, tuning out specific exhaust sounds is more than just "stick that resonator in there" kind of development.  Sometimes it may even work, but often times, it requires tweaking for just the right sound.

As the E46 M3 approaches its 20 year anniversary (in 2021), factory OEM items like catalytic converters start to require replacement.  Whereas replacement manifolds (with catalytic converters) are expensive, some have chosen the header option.  By doing this, the exhaust sound instantly increases in volume and a RASP pipe is no longer as effective as before.  For our track customers that attend tracks with specific dB limits, this was also a concern as their track-going vehicles were blowing pass track limits.  Therefore, we had to come up with a new version.

Our V2 changed from a dual, separate resonator section to a single, muffler-style solution.  Now we have a RASP pipe that provided both more flow (2.5" pipes vs. 2" factory) but could control more sound (larger overall volume with the single muffler).


A common sight;  OEM hardware from Section 1 and Section 2

Fits 2001-2006 E46 M3.  Does NOT modify US-emission vehicles.

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