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Rogue Engineering Dual Muffler Exhaust

Author : Jed Posted on : 28/10/2004
Model : BMW, 3 - Series (E36) 1991-99 Category : Exhaust - Muffler
Source : http://www.team-bar.com/
 
Previous to my current Rogue Engineering Exhaust, I had 2 different catbacks on my car-a stock 95 M3 exhaust and a M3 Borla exhaust. The M3 exhaust was a nice improvement over the stock 325i exhaust, freeing up top end breathing-definitely a nice complement to my intake. The sound was a welcomed deeper growl, but still at stock dbs (after all, it's still OEM!). However, weight is the enemy and this exhaust was a hefty one, weighing in at 45 lbs. Cosmetically speaking, it does not look that great without the M Technic rear valence of the M3-the bottom of the exhaust was quite large-giving it a "pregnant" look. The staggered tips also protruded from the rear. Both of which are normally masked by the M3 valence. Fortunately, I came across a Borla exhaust from a 1995 M3 with only 30K miles on it. Very light exhaust indeed at 22 lbs (weighed at Rogue Engineering). With stainless steel construction, compact design and the classic chambered Borla tips, this was definitely the next exhaust to go on the car. The top end was definitely improved over the M3 exhaust with a bit of a loss of bottom end torque. The gears wound out quicker at the top and there was more pull towards redline. The sound? I could easily trip off car alarms with the exhaust. It had a deeper idle and at WOT the thing screamed. Great exhaust, but there was a new toy to be had....off to New Jersey to Rogue Engineering!

DMS. What does that mean? Dual Muffler Exhaust. Still confused? Inspired by the design of the McLaren F1, this exhaust system is comprised of 2 mufflers running from the catalytic convertor, maintaining the separation and velocity of gases as they exit.

Now that you know what DMS means, you're probably wondering how does it look, perform and sound? It's a very unique looking exhaust with the separate exhaust cans. The finish was impeccable, with very clean TIG welds making for a smooth surface. The 20 minute installation was done at RE, and it fit perfectly. After putting my car back down off the rack, Ben Liaw handed me the keys "take it out and tell me what you think". After Ben warned me about cops that hang out near their garage, I promptly ignored him and opened it up.

Exhausts are just for sound right? They're just for looks, right? Not at all. I was surprised at the performance of my new mod. You might be thinking-"it's all in his head", well, on the way to the shop, I was driving very aggressively to get the full measure of the Borla exhaust, to see what the Rogue could do. Compared to the Borla, there was definitely more top end punch and better throttle response. What made me most curious was that there was no loss of bottom end-it was comparable to the Borla, if anything it was a little stronger. 325's are not known for their bottom end torque and bottom end changes are somewhat noticable. As good as the Borla was, the top end pull was much better with the Rogue Engineering DMS.

The sound of the DMS. Wow. Very deep. Very throaty. It is an aggressive sounding exhaust with a deep tone and growl. Even upon start up, the car lets you know it is awake. For some, this exhaust may be too loud for everyday driving. Within the cabin, from idle to about 3K rpms, the exhaust is quite loud-with 2K rpms having the loudest resonance. From 3K to 4K, the sound starts to mellow a bit and a pull to redline from 4K results in a aggressive race-like wail. Cruising? If you are not going full throttle, from 3K and up, the car sounds much quieter, much closer to stock than my Borla. I hear my intake more than the exhaust at that point.

The previous description was from the inside of the car. The outside? I definitely catch a lot of attention, both good (other enthusiasts) and bad (soccer moms and the elderly). Car alarms get tripped off. Small furry woodland creatures scurry away in fear. Okay, so maybe it's not that bad (Tri-Flos do that). I swapped cars with my friend so we could each try out the other. I followed him in his 2002 330Ci, known to be a well insulated car, and noticed how aggressive the car sounded. Keep in mind, I LOVE the sound of the car and have gotten compliments on it. However, some people may not. If you are a family man, a businessman (who takes out clients), or a hen-pecked husband using the car as a daily driver, you probably should think twice about this exhaust.

Drawbacks? At 29lbs, this is not the lightest aftermarket exhaust, but given the current offerings, this is by no means considered heavy either. Sound, as previously mentioned, can either be a drawback or a plus, depending on your situation.

I qualify my recommendation to those looking for an aggressive exhaust and don't mind turning up the automotive soundtrack while getting a performance benefit. If you meet the critieria just mentioned, then Rogue Engineering's Dual Muffler Exhaust should definitely be at the top of your shopping list. With an excellent fit and finish, this catback system is well worth the money.

Price: $659

-Jed

For more information, please visit:

www.rogueengineering.com
 

References

  • http://www.team-bar.com/
    •  


    An Exhausting Experience
    Model : BMW, 3 - Series (E36) 1991-99, 318ti Category : Exhaust - Muffler
    ... at the back of the cat just a little and then the clamp in front of the muffler. Back and forth, back and forth. This is when I first noticed the problem. The system wasn't lined up quite straight with the cat and was forcing it to the left, almost against the left side of the driveshaft tunnel. At the same time, the exhaust tip was hard against the right side of the cutout in the rear ... (more)
    Posted : 29 April 2004 Author : John Harbolt
     
    BMW Muffler Replacement
    Model : BMW, 3 - Series (E36) 1991-99 Category : Exhaust - Muffler
    ... first step is to raise the car off of the ground and elevate the rear on jack stands. See the Pelican Parts Technical Article on Jacking Up for more details. Then, using two wrenches, simply disconnect the bolts on either side of the muffler flanges. With a few taps of a hammer, the flanges should separate from the muffler (Figure 4). The donut gaskets that seal the muffler to the rest of the ... (more)
    Posted : 18 May 2005  
     
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