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06-22-2013, 09:31 PM | #1 |
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an inexpensive cat-back exhaust
I just recently bought a new M3 and wanted it to sound a little meaner without spending a ton of cash.
I found CNT Racing on the web. I could not find a review but the price was so low I decided to take the risk. The system was $399 (US) shipped, and it arrived at my door about 4 days after I ordered I was skeptical but the initial inspection looked great; full polished stainless with very nice 3.5 rolled-lip quad tips. (I'm a bit old fashioned, I like polished parts) OK it looks good but how does it fit - and how does it sound? Here are some pics of the install that I did at home this afternoon. First the stock system then the CNT Racing exhaust: |
06-22-2013, 09:52 PM | #3 |
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And here is the finished project. It only took about 2 hours, the fit was pretty good, the system seems well engineered and went together pretty easily.
I did use my own stainless hardware that I had on hand because I didn't like the look of the stuff that came in the box ( just 2x m8 flange nuts and 4x m6 allen bolts and flange nuts) I was very skeptical and would have ditched the whole thing had there been anything about the system or the install that looked even a little off. But, it all went together nicely and fit great. The sound is pretty good but nothing exotic. Not too loud but I do expect a little droning at this price. I'll live with it awhile and see if it's good or if it get's to me. I'd have no problem going back to stock if I need to but so far I love it. If you want a nice cat-back exhuast that is a very good price here's a link to where I bought this CNT Racing M3 exhaust $400 bucks is hard to beat (and BTW I have no affiliation to this company or any of it's products) Last edited by flynbulldog; 06-22-2013 at 10:15 PM.. |
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06-22-2013, 10:13 PM | #5 |
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Nice find! It looks pretty good if you ask me. I have a 600 dollar megan exhaust that use to be the low price leader. It looks like you might have found a new one. How does it sound? Can you put some videos of it up?
Almost all exhausts drone. The megan drones a little between 2600-2900RPM and 1 out of 10 in drone, I would say its a 3. How would you rate the drone in that system? It looks good man. Unless its Gintani like drone, I would keep it!
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06-22-2013, 10:20 PM | #6 | |
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I've never posted a video online before, I may play with that when I get some time. But there are a few video clips from the seller on the link that I posted above. |
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06-22-2013, 10:39 PM | #7 | |
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My only issue is the tips. They stick out a bit to much for my taste. But it looks like you can hammer the connecting pipes in to combat that some. Good find man. Thanks for sharing!
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06-23-2013, 07:51 PM | #8 | |
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The tips actually stick out less than the stock tips did - that pic is a bit deceiving. Look at the pic from under the car and you can see how they fit into the bumper. I'm very happy with the fit of the pipes and the tips. (and I'm a picky SOB ) |
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06-24-2013, 01:07 AM | #10 | |
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06-24-2013, 01:29 AM | #12 |
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06-24-2013, 01:39 AM | #13 |
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Those cans are tiny for this engine. I'm guessing it pretty loud and drones or is very restrictive. You can always try to add a couple Heimholtz chambers on, like the AA exhaust has.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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06-24-2013, 11:52 AM | #14 |
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haha, well, since the pipes connect directly to the aft set of Cats (isn't that what those are after the X-pipe?) and are well forward of the rear axles I'd say they are cat back.
Last edited by flynbulldog; 06-24-2013 at 12:14 PM.. |
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06-24-2013, 11:54 AM | #15 |
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guess I didn't even need to do a review - one look at the pics and you have it figured out for us, Thanks
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06-24-2013, 11:57 AM | #16 |
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these are not my vids:
http://www.youtube.com/watch?feature...&v=MlqEStoqVaI http://www.youtube.com/watch?feature...&v=nFlwCutPMEE As you can hear it is far from the loudest system but the sound is enough to make you smile. |
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06-24-2013, 11:59 AM | #17 | |
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06-24-2013, 02:00 PM | #18 | |
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most cat backs replaced mufflers and resonators, then connect right to the cats. Which is why they are called cat backs. The m3`s exhuast is a cock block for true cat backs, but technically you do not have a cat back, but doesn't hurt to call it one. the world is getting less and less technical with what people label things now of days. |
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06-24-2013, 02:59 PM | #19 | |
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How are you liking it? To loud, to soft just right? Any drone? This is such a good deal I might just buy it.. |
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06-24-2013, 03:55 PM | #20 |
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That car makes some funny noises over what seems like bumps or bad roads. But the exhaust sounds pretty quiet, it's hard to compare over videos but I wanna say the OEM mod might be louder?
OP have you heard an OEM modded exhaust in person? Which is louder? If they are close, maybe even quieter I think i'll like it. Plus getting rid of some weight doesn't hurt. If it needs to be loader there is always a test pipe or secondary cut delete. |
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06-25-2013, 07:51 AM | #21 | |
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I'll get to drive it a bit today The thing I've read about the OEM mod is that it's quiet at idle and sounds good when you step on it with no drone down the highway. All that sounds perfect to me. The bad part is that it's not easily fixed if you don't like it. This system is not all that quiet at low RPM and I don't really know yet about the droning. The good part is that I can easily revert to stock if I don't like it. |
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06-25-2013, 08:35 AM | #22 | |
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I have the Oem. exhaust mod. replaced the 2 big perforated pipes(love it )(0 drone),done by myself v v v see post of it ,with pics,DIY?sound D http://www.m3post.com/forums/showthread.php?t=733817 And here a video Oem. exhaust mod. 2 pipe perf. method. vs ///M performance exhaust v v v Last edited by ///M Power-Belgium; 06-25-2013 at 08:40 AM.. |
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