E46 Fanatics Forum banner
Status
Not open for further replies.

M3 Exhaust Guide

3 reading
83K views 4 replies 17 participants last post by  BMWE46M3GTVLN  
#1 · (Edited)
I've been fascinated (or at times disappointed) with the various exhaust options available for the E46 M3, and at times obsess over the various details of the construction of the available systems. However, through this I was able to learn a lot about the available exhaust components for the E46 and figure this would help others when choosing a solution for their car. This actually took a lot longer than I anticipated, but it should have a fairly up to date list of exhausts made for the E46 M3.

Feel free to let me know if there are any I missed. I can also add video links to it (with everyones help!).

A few tips for those who are not up to date with the lingo or don't know the layout of the stock exhaust system.

The M3 exhaust is laid out in the following pathway:
Headers - Section 1 - Section 2 - Section 3

It's designed by Arvin-Meritor and their white paper can be seen here:
http://www.unofficialbmw.com/images/BMW_M3_Exhaust_System.pdf

Headers:
US cars came with the 200-cell cats built into the header contain 1 EGT bung, 2 pre cat and 2 post cat sensor bungs.
Euro cars came with headers without cats built into them. The factory cats are located in section 1.

Section 1:
This is the section immediately after the headers, and consists of a pair of parallel S-pipes.
US cars came with only one resonator.
Euro cars came with 200-cell catalytic converters and EGT bungs built into section 1. CSL euro cats are lighter due to thinner piping for weight saving purposes.

Section 2:
Longer portion of the mid section that connects to the muffler. There is a factory H-Pipe crossover in the beginning of this section, and a tiny straight through resonator halfway down on this section.

Section 3:
This is the actual muffler, including tips. The stock muffler weighs 56lbs and the CSL is claimed to be lighter 5-10lbs lighter. The muffler is not valved internally and is a very good flowing muffler. It features perforated tubes and one crossover chamber.

Table Of Contents:
  • [*]Headers
    [*]Section 1
    [*]Section 2
    [*]Section 1 & 2 Combo
    [*]Section 3 - Muffler

Headers

US Factory Headers
Price: Seen these go for as low as $100.
Notes: Removal and/or further downstream relocation of catalytic converters improves sound and power.
Image


Euro/CSL Headers
Price: $550 - $750
Notes: Guaranteed perfect fit. Doesn't gain the most power, doesn't gain the least but you won't run into fitment issues as it's OE. Same design as US headers, with maybe slightly longer primaries.
Image


Achilles Equal Length Headers
Price: Custom
Notes: Truly equal length, but look to be one of the best made headers for the S54.
Image


Active Autowerke Headers
Price: $1295
Notes: Polished. AA is several generations into this now. I'm not too familiar with the past ones, but I think they are on generation 4 or 5 now.
Image


aFe Twisted Steel Headers
Price: $1495
Notes: This is a rather recent release. Looks promising.
Image


Agency Power Headers
Price: $900 - $1200 new and $500 - 650 used
Notes:
Image


Bimmerworld 'PaceSetter' Headers
Price: $590
Notes: Made for BW by Jet-Hot. Comes ceramic coated.
Image


BMW PTG Race Headers
Price: $3500
Notes: Inconnel and oversized. No one on this forum has installed this to my knowledge.
Image


ebay Headers/JVT/M3ANONE
Price: $100 - $600
Notes: Ebay headers are a hit or miss. M3ANONE headers are eBay headers modified by a forum member to fit correctly. He also coats them. JVT are slightly better than non-brand ebay headers, but are still ebay headers which are a hit or miss in general.
MEANONE
Image

JVT
Image


CPI Single Step Headers
Price: $1195
Notes: This is one of the most recent E46 M3 performance product releases.
Image


Epic Motorsports Headers
Price: $1999
Image


Evosport Headers
Price: $1400
Notes: Coated.
Image


Friedrich Headers
Price: $1700
Notes: Odd header design from Europe. Can be found on the German ebay site.
Image


Dixis Spirit Headers
Price: $3000 - $10,000+
Notes: Full titanium and Inconnel are also available.
Image


Kromer Kraft Headers
Price: Unknown
Notes: Mysterious custom header that is claimed to be used in this video, to achieve the sound.
Custom M3 Headers - YouTube
Image

A better picture is below, but it's for an S5x engine. However, design is for the most part similar.
Image


Macht Schnell Performance Headers
Price: $1195
Notes: Coated.
Image


Turner Equal Length Stepped Header
Price: N/A
Notes: I think it's been discontinued as it's no longer on their site.
Image


Race Marquee Systems 'RMS' Headers
Price: Used around $1100
Notes: Huge oversized 2.5", large primaries, comes with reducer to adapt to stock section 1. Designed mainly for FI applications.
Image


RD Sport Headers
Price: $2500
Image


Schmiedmann Headers
Price: $695 (shipped from Europe)
Notes:Made in Europe, similar to RD Sport design.
Image


Sound of Speed Headers
Price: $1400
Notes: Made in Italy.
Image


Status Gruppe Headers
Price: $810
Notes: Made in the USA.
Image


*Supersprint is a little confusing because they have two piping sizes for their headers and section 1 counterparts. Stock diameter is 2.25" (adequate for most, even for low boost FI and compatible with stock headers and section 1) and their oversized increases the headers to 2.5" along with a matching 2.5" section 1.
Supersprint Stainless Steel Headers
Price: ~ $1800 new and $800 - $1200 used.
Notes: Stock replacement, works with stock section 1.
Image


Supersprint Stepped Headers Version 1
Price: ~ $2800 new and $1200 - $1500 used.
Notes: The V1 is Supersprint's first stepped header design in the oversized 2.5 diameter tubing. This requires a oversized section 1 to mate to it. SS makes a 2.5" section 1 with optional hi-flow cats.
Image


Supersprint Stepped Headers Version 2
Price: ~ $2800 new and $1200 - $1500 used.
Notes: The V2 was made after enthusiasts requested that the same stepped header was to be made in a 2.25" setup, which allowed it to be compatible with the stock section 1, and many other options.
Image


Here is a comparison between the two. Top: V2 w/ Supersprint Race Cats. Bottom: V1 w/ Supersprint S-Pipes.
Image


VAC by Fabspeed
Price: $1095
Image

Image


Continued.
 
#2 ·
Section 1

CPI RTX
Price: $460
Notes: Dual-round straight through resonators, with a H-crossover.
Image


CPI RTX w/ HFC
Price: $860
Notes: Comes with 200 or 400 cell HFC.
Image


CPI RTX w/ AA HFC
Price: $1200
Notes: Comes with ultra 100-Cell Active Autowerke HFC, with a H-crossover.
Image


CPI Euro Style Resonated w/HFC
Price: $880
Notes: Euro style with 200-cell HFC. No crossover, same configuration as OE Euro/CSL style but with a pair of resonators.
Image


CPI Euro Style w/HFC
Price: $1500
Notes: Euro style with HJS certified HFC. No crossover, same configuration as OE Euro/CSL style.
Image


Meisterschaft Section 1 Unresonated
Price: $200-300
Notes: Not to be confused with Eisenmann. This is made by GTHAUS, uncertain if still available new.
Image


OEM+
Price: $60 - $300
Notes: It's common to add a second resonator to the US section 1, to get the same result as the resonated aftermarket section 1's. Make sure the ID is 2.25".
Image


Rogue Engineering Rasp Pipe
Price: $500
Notes: Uses two skinny bottle style resonators.
Image


Status Gruppe Tuning Resonated
Price: $330
Notes: Utilizes two individual, round, 2-piece resonators.
Image


Status Gruppe Tuning Un-resonated
Price: $280
Notes:
Image


Status Gruppe Tuning HFC
Price: $630
Notes: 200-cell, 400-cell, and 400-cell CA compliant available.
Image


Supersprint Section 1 V1
Price: $580
Notes: Meant to mate to SS Stepped V1 2.5" headers. Uses slip on connectors between headers/section 1.
Image


Supersprint Section 1 V1 w/HFC
Price: $2300
NoteS: Meant to mate to SS Stepped V1 2.5" headers. 200-cell HFC.
Image


Supersprint Section 1
Price: $580
Notes: Compatible with stock headers and stock section 2.
Image


Supersprint Section 1 w/HFC
Price: $2300
Notes: Compatible with stock header diameter and stock section 2. 200-cell HFC.
Image


Section 2

Agency Power Section 2
Price: $400
Notes: Replaces stock section 2, 2.25", eliminates factory cross-over and factory resonator. This piece is true dual all the way through.
Image


CPI X-Stream Section 2
Price: $430
Notes: Similar design to Supersprint X-Pipe, Rogue Engineering and Status Gruppe, but with 3.25" diameter piping.
Image


JIC Titanium
Price: $900
Notes: Dual titanium section 2. No resonators or crossover, true dual.
Image


Larini Section 2 Pipe Resonated
Price: $400 - $500
Notes: Small resonator, similar in size to SS Resonated X-Pipe. Also 3" center section.
Image


Meisterschaft Section 2
Price: $400 - $800
Notes: Stainless steel and titanium versions available. Fairly rare piece to come across. Made by GTHAUS and possibly discontinued.
Image


Rogue Engineering w/optional EVC
Price: $600 (+$300 for EVC)
Notes: Same concept as SS, SGT, and CPI but with optional electronic cutout, right before the muffler. Also uses 3" diameter piping.
Image


Sound of Speed Section 2 X-Pipe
Price: $680
Notes: X-Pipe crossover, no resonators on this unit.
Image


Supersprint Section 2 X-Pipe
Price: $570
Notes:Single 3" pipe configuration with two y-merges on each end. Compatible with stock section 1 and stock muffler.
Image


Supersprint Section 2 X-Pipe w/ Resonator
Price: $800
Notes: Same as above with a single, small round resonator. Compatible with stock section 1 and stock muffler.
Image


Status Gruppe Tuning X-Pipe
Price: $425
Notes: Same design as SS, CPI, RE. 3" center section diameter. Replaces section 2.
Image


Status Gruppe Tuning X-Pipe Resonated
Price: $475
Notes: Comes with a single bottle style resonator. 3" center section diameter. Replaces section 2.
Image


Tubi
Notes: Features X-Pipe crossover vs OEM H-Pipe. Also dual bottle resonators instead of the tiny OEM resonator.
Image


Section 1 & 2 Combo
Borla Midpipe V2
Price: $800
Notes: Replaces Section 1 and 2, cannot be used individually. Factory h-pipe is replaced with x-pipe and single oval resonator with dual in, dual in straight through internals is used. The V1 did not have the x-crossover seen in the second section originally and users suffered from power loss.
Image


Borla Midpipe V2 w/HFC by CPI
Price: $1200
Notes: Same as above, but CPI adds two 200-cell HFC to the configuration.
Image


Megan Racing
Price: $420
Notes: 2.5" piping with dual resonators replaces section 1 and section 2. Appears to have no cross-over section, keeping it a true-dual setup all the way until the muffler.
Image


Continued.
 
#3 ·
Section 3 - Muffler

AC Schnitzer
Price: $600
Notes: Comes with dual "quad" tips that are in the shape of a figure 8.
Image


Active Autowerke
Price: $1350
Notes: I think they are on their 6th Version now?...AA seriously needs to just make a version they are happy with.
Image


Agency Power
Price: $1200 new and $600 - $750 used
Notes: Agency Power made two versions of their muffler. The first (discontinued) being dual oval canisters (similar to the SS Race) and the latter being the dual parallel canisters (possibly a replica of the MXP).
Image

Image


Arqray
Price: $2400
Notes: Stainless steel exhaust from Japan. Very unique construction. Available in quad tip and dual tip.
Image


Billy Boat
Price: $1200 new and $300 - $600 used.
Notes: Very low and rumbly. Fairly loud muffler.
Image


Eisenmann Street
Price: $2000 new and $700 - $900 used.
Notes: Less aggressive note. Various tip styles available.
Image


Eisenmann Race
Price: $2000 new and $700 - $900 used.
Notes: Internal muffler construction features are very similar to the E46 M3 OEM muffler. The main differences are the lack of an "section 1" which is present on the OEM muffler. Also, all internal pipes are perforated on the length that runs parallel to the muffler shell, unlike the OEM muffler which features a non-perforated for the inner two exhaust tips. Mixing chamber also appear larger. Various tip styles available.
Image


Dinan
Price: $1400 new, $600 - $800 used.
Notes: Single wall, satin black tips. Driver side tips are non-functional. Muffler internal construction features parallel perforated tubes, running horizontal like the muffler. Perforated tubing is a step larger in diameter for the 1/3 closest to the inlet of the muffler. No perforation on the bends of the pipe.
Image


Dixis Spirit Titanium
Price: $1500 - $2000 used.
Notes: Titanium. Aggressive, but one of the milder titanium mufflers available. Beautiful pie cuts, and strong unit despite the titanium construction.
Image


Filthy Habits Fabrication
Price: Custom
Notes: Valved exhaust with beautiful hand-made turn downs. Various sound levels available as they are made to order.
Image


Gruppe M Titanium
Price:
Notes: Titanium. Minimal sound deadening. Very close to straight pipes, slightly more refined, but still very loud.
Image


HPF Exhaust Titanium
Price: $800 - $1200
Notes: Full titanium. No resonators or mufflers. Nothing more than titanium piping and some muffler tips here.
Image


JIC Cross Titanium
Price: $4000
Notes: SS version also available for roughly $1800.
Image


JIC Cross Dual Canister Titanium
Price: $4500
Notes: One of two JIC titanium muffler designs.
Image


Kreissieg F1 Valvetronic
Price: $4500
Notes: Valve operated muffler. Essentially straight piped once the valves are open as it bypasses the muffler completely.
Image


Larini
Price: $1150 new and $900 used.
Notes: This rather rare exhaust features a unique X-merge prior to splitting off into two separate canisters. The canisters are straight through with a single chamber.
Image


Meisterschaft Stainless Steel
Price: $1600 new and $500 - 600 used.
Notes: Fairly hard piece to come by, mounting brackets had some issues.
Image


Meisterschaft Titanium
Price: $2400 new, $500 - $600 used.
Notes: Rare titanium muffler. Lower price due to bracket issue and the fact that titanium is a more complex metal to weld.
Image


Megan Racing
Price: $400
Notes: Same dual canister design as AP, SGT, and MXP. Some concern on small fitment issues with tips pointing down. Megan also makes matching Section 1 with dual resonators and a section 2, however, reviews are mixed on the mid-section.
Image


Milltek
Price:$2000 new and $800 - $1000 used.
Notes: Milltek also makes a section 2, with a long X-crossover and a medium sized oval resonator. This mates up to a stock section 1.
Image


Milltek - Large Canister
Price: $2000 new and $800 - $1200 used.
Notes: Milltek made two versions of their muffler. The large canister version also is compatible with their section 2 mid-pipe.
Image


MXP Dual Canister
Price: $800
Notes: Dual canister design also found on Agency Power and SGT. Unclear who the originator is, but all three brands seem to have good quality parts. Uncertain about eBay non-brands and their quality.
Image


MXP Single Canister
Price: $1000
Notes: Imported from Japan. Replicas exist on ebay under ztek/ssauto.
Image


OEM Muffler Modification
Price: Varies
Notes: There are tons of ways to modify the stock muffler. Some hit, some miss. Here is how the stock internals look like exposed.
Image


Scorpion
Price: $600
Notes: Recent arrival from England.
Image


Sound of Speed
Price: $1300
Notes:
Image


Status Gruppe Tuning
Price: $750
Notes: Various tip options available. Same design as Megan and Agency Power, but with better QC and possibly better muffler internals. Internals appear straight through, a la resonator style.
Image


Status Gruppe Tuning - Scorza
Price: $1100
Notes: SGT bought Scorza and their original muffler design. Improved internal rattle construction via floating piping to allow heat cycle movement. One exhaust pipe passes through the canister once, while the other receives a double-penetration for eargasm! Yeah!
Image


Supersprint Street
Price: $1700
Notes: Quietest out of the three trim levels.
Image


Supersprint Sport
Price: $1700
Notes:
Image


Supersprint Race
Price: $2000
Notes: Most aggressive out of the three SS options.
Image


RD Sport

Price:$1100
Notes: Comes with 90mm tips which is one of the largest available.
Image


Remus
Price: $1000
Notes: More recent release from Remus with some seriously sweet tips.
Image


Rogue Engineering
Price: $1200
Notes: Various tip choices available when ordering new. Also available in over-sized diameter which produces slightly lower note. Based on Dixis Spirit design. Internal canister construction features two perforated pipes all the way through, no crossover no baffles.
Image


Solid Design
Price: $1400 - $2000
Notes: Replica of Powerhouse Amuse system, also made out of full titanium.
Image


Continued.
 
#4 ·
Top Speed
Price: $250 - $600
Notes: Stainless Steel eBay replica of the Gruppe M Titanium exhaust. Hit or miss as there are various versions of it and most use low quality resonators that do not do much silencing. Essentially a straight pipe setup with minimal noise reduction.
Image


Trek Titanium
Price: $1200
Notes: Limited batch made by Southern California shop. No longer manufactured.
Image


Tubi
Price: $2500 new, $700 - $900 used.
Notes: Made in Italy. Tubi also makes exhaust systems for exotics such as Ferrari, Lamborghini, etc). A matching section 2 is also available, removing the factory H-Pipe and replacing it with a x-pipe and adding two bottleneck resonators.
Image


Complete Systems

Bimmerworld Race
Price: $1000 - $1200 new depending on resonator/options. ~$800 used.
Notes: 27lbs. Strictly for race use only. Seriously.
Image


Borla ATTAK
Price: $2200
Notes: Came out more recently than the Sport Exhaust.
Image


Borla Sport Exhaust
Price: $1200
Notes: Comes with 4xdouble walled round tips or dual oval-rolled tips.
Image

Image


Corsa (UUC)
Price: $1600
Notes:
Image


Fluid Motor Union
Price: Made to order.
Notes: These are custom, hand-made to order. This setup utilized a single 3.5" midsection, Vibrant mufflers, and custom single walled exhaust tips.
Image


Dixis Single Titanium
Price:
Notes: This is a section 2 and muffler setup made of full titanium by Dixis. Requires rear diffuser as it doesn't utilize the factory exhaust outlets.
Image

Image



Kreissieg F1 Valvetronic
Price:
Notes: Another version of the Kreissieg F1 Valvetronic that merges into a single pipe setup and replaces both the muffler and section 2.
Image


Magnaflow
Price: $1000 new and $500 - $700 used
Notes: Very interesting exhaust system. Replaces Section 1 with a single oval resonator with dual in, dual out internals, no crossover. Section 2 features a MF stamped tru-x crossover and loses the H-Pipe and mini resonator. Sound is a bit rough and raspy, especially with headers. A MF Tru-X Muffler in place of the Tru-x pipe should remedy that.
Image


Maximum PSI
Price: Made to order.
Notes: Comes as a full exhaust system with section 1, 2 and muffler. Designed for FI applications, but can be used for N/A.
Image


Powerhouse Amuse Titanium
Price: $4500+ new and $3500 used
Notes: Full titanium section 2 and muffler. Imported from Japan and extremely rare. Comes in dual/quad tip configuration. Utilizes H-crossover.
Image

Image


Unobtainium Racing
Price: Made to order.
Notes: Custom, high precision exhaust featuring a 3" single pipe midsection and a total of three low-profile, long taper resonators.
Image

Image
 
#5 ·
BMW AG Motorsport exhaust manifolds are very rare and efficient with power delivery. As almost every American E46 M3 owner knows almost anything would make power over the stock BMW NA exhaust manifolds that have the cats built into them. However factory BMW AG Motorsport race car manifolds are not for street use.

The BMW street engine is known as the S54B32 producing approximately 333HP. The BMW factory works race engine at BMW AG Motorsport division is known as the P54B32 producing 420HP and if it's the EVO P54B32 producing 435HP. This engine was delivered to the original BMW works team PTG who further modified it with a stroke 3.4 L to produce 468HP with 338 ft. pounds of torque. This power was right on the line with the torque ability of the HEWLAND 6 speed used on these factory works E46 M3 GT race cars. Did you know that BMW AG Motorsport refers to the S50B32 engine used in the late 1990's as the P50B32, this engine was also stroked to a 3.4 liter by the BMW works team PTG. While we are talking about exhaust systems the BMW works team started the side pipe exhaust trend on the BMW E36 M3GT ALMS race cars. Another fun forum fact, did you know the very first BMW E36 M3 GTR race car made its official debut in 1993 in Europe with BMW works team Schnitzer Motorsport GmbH.
 

Attachments

Status
Not open for further replies.
You have insufficient privileges to reply here.