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  1. #1
    Established Member Two Rings
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    My Comparison of JHM & MTM exhaust- LONG

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    If you are in the market for an exhaust for your RS4 and you want the most performance (2.75" diameter) it is more than likely you will come to the crossroads of deciding between the JHM and MTM exhaust. This is the decision I was faced with this past November when I decided to add some more power to my RS4 cab. I read all of the forums posts reviewing each one and listened to as many videos I could find of each. I tried to find an someone with JHM or MTM locally but the closest forum members were 4rings-rs4 in NY and JoeyMahattan in PA about 3-5 hours from me. I tried to arrange meeting each of them while in that area for business but my trips would get rescheduled or those guys would have something going on when I was available. BIG SHOUT OUT to those guys for be willing to let me come down and listen to their exhausts. It was unfortunate we were unable to make it happen. Well getting to the point to this thread... I now have had personal experience with both exhausts and wanted to add yet another JHM/MTM thread detailing my impressions.


    I think from the beginning I wanted to order the MTM downpipes and catback. Performance was at the top of my list but I did not want very LOUD exhaust. I called Alex @ Europrice and after discussing the total including delivery, customs and fees it was going to be around $8000. I just couldn't justify spending that much on an exhaust. At that point I decided that even if I was worried about the JHM exhaust being too loud it was worth me at least giving it a shot since it was less than half the cost of the MTM and much easier to get in the US. Most of the reviews said if you go with the resonated catted set-up it is pretty "mild". This is the video which really sold me on pulling the trigger for the JHM...



    I placed the order for the JHM Resonated Cat-back and Downpipes with High Flow Cats. I have always heard really great things about JHM customer service and got to experience it first hand during this transaction. The exhaust was completed in just 2 weeks from when I placed the order. JHM called me before shipping it out to make me aware that it may not be a direct fit on the cab and gave me the option to cancel the order. After speaking to my tech Rick ("your daddy") he said he would make it work and go ahead with the order. A week later I dropped it off at Auto Engineering for Rick to complete the install. He was able to make everything fit by using washers as spacers and trimming some of the exhaust shield. BIG SHOUT OUT to Rick for your attention to detail and your quality work. My first impression on start-up was "DAMN this is really LOUD" It was raining the night I picked it up and I remember driving home with my window down just so I could get the full effect. Downshifts made me giggle like a little kid and when you are at full throttle WOW.. the thing just sounded so mean. The power bump from the 2.75" downpipes was very noticeable and the car just pulled with so much more ease. I REALLY loved it but at the same time had some concerns. The first thing that drove me crazy was the tips were not flush with the bumper. This is not an issue for sedan owners as those bumpers are straight but on the cab the rear bumper is curved which causes the end the tips to stick out 1-2 inches. My second issue was that as amazing as it sounded, the drone between 1800-2100 RPMs is especially annoying. It is also very difficult to stay under the radar. In a quiet neighborhood like mine whenever I was coming or going you could hear it before I even turned onto our street . The first thing my wife said to me was "I heard this loud car and I was hoping that wasn't you and your new exhaust!" I even tried keeping the RPMs low but it is still really loud under 2500RPMs. 4rings-rs4 once said "The tone changes around 2500 RPMs and it gets quieter". At the time it didn't make much sense to me but now I know get exactly what he was talking about. I decided to put about 1000 miles on it to figure out whether my love for the exhaust would outweigh the things I hated. Whenever I wasn't in residential areas I loved it and the noise grew on me. It is perfect for when you are in one of those moods where you just want to open it and and let people know whats up. The problem is I am not in that mood all the time and sometimes I am just looking to cruise under the radar. The JHM just made such sweet sounds I was willing to deal with the drone and significantly increased noise level but the tips coming out too far just bothered me too much. Just my OCD I guess. "Swiss Bluemoon" and "JoeyManhattan" both posted really good videos of the MTM exhaust but this one that really sold me on it...





    I contacted Alex at Europrice once again and explained how I had went with the full JHM exhaust and decided that it was not for me. The price would be much lower now that I wouldn't need downpipes as the JHM downpipes were already installed. The only real benefit of the MTM downpipes was the 100 cell cats which is not drastic enough to warrant a switch. I placed my order on December 21st but knew that wait time would be a longer because MTM takes Holiday Break from the Dec 23-Jan 8 (Must be Nice!) Alex from Europrice was awesome!! He was so quick about getting back to me whenever I PM'd him. I think we had over 30 PM correspondence about the exhaust, the process and the price. BIG SHOUT out to Alex for being so thorough, professional and dealing with all my questions/concerns. We are very fortunate to have him in this community allowing us to get great products that are not easily accessible in the US. It was a long wait but after holiday break, build time, shipping and customs clearance I picked up my exhaust almost two months after placing the order. I dropped it off to be installed the next week and according to Rick even though he had to make some modifications to get the JHM to fit he said the MTM was much more difficult to get straight and he spent a lot of extra time trying to get it right. I love how he is a perfectionist that way. It's funny that going from the JHM exhaust to MTM exhaust my initial reaction was "DAMN.. this thing is almost TOO QUIET!" I originally had Rick install it with the valves hooked up but that didn't last more than 40 miles. As soon as I got home from the shop I plugged the vacuum lines and went for another ride. MUCH MUCH better. There is no Drone at all. It is definitely deeper than stock but even when you get higher in the RPM band it stays pretty quiet. The tips fit perfectly and are nice and flush with the rear bumper. I was worried that I would miss out on the benefits of the X-pipe on the JHM but there is no noticeable difference in performance maybe just a little easier to blip the throttle on downshifts with the JHM. I did not want to write this review until I had 1000 miles of seat time with the MTM exhaust and I am very happy with my decision. Was it worth the money? At first I did not think so but after driving it over the past few weeks it just keeps getting better. I would say it is much more exotic sounding than the JHM and to me it fits the character of the car better (Personal opinion of course). The JHM has more of an american muscle car sound which is not to say that is bad just not as "refined". Do I miss the JHM? Sometimes... In those times where I want to be heard there was nothing better. In a perfect world I wish I could have the MTM for cruising, residential driving and around law enforcement and then flick a switch to have the JHM for those times I want to be heard!!!


    I will apologize in advance but I won't be posting any videos of the MTM exhaust partly because I do not have the proper equipment to provide a quality clip and truthfully a video will not do it justice. I listened to numerous videos of the MTM exhaust and it just sounds so much better in person. I am willing to meet up with anyone who lives locally so you can hear it for yourself. I started this thread for anyone who may be trying to decide between these two exhausts and I tried to be as objective as possible but at the end of the day it comes down to your own personal preference. My advice to anyone thinking about purchasing an exhaust whether it be MTM, JHM or any of the other options is try to meet up with someone who currently has one so you can hear it in person. You should listen to it inside the car as well as outside under a variety of different driving dynamics. Sorry for the length of this post. I just wanted to make sure I covered everything. On to the pics...


    JHM




    MTM


  2. #2
    Senior Member Three Rings JoeyManhattan's Avatar
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    Thanks for the shoutout, I love mine more every time I get to have the windows open. It's heard plenty by those around and has a nicely refined tone.


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    2008 RS4 Mugello Blue Pearl, Silver Interior

  3. #3
    Veteran Member Four Rings badbluers4's Avatar
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    Congrats on getting the one you are happier with. Thanks for the detailed write-up.

  4. #4
    Veteran Member Four Rings your daddy's Avatar
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    :) Dennis, you are the man. whats next?
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  5. #5
    Established Member Two Rings
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    Quote Originally Posted by your daddy View Post
    :) Dennis, you are the man. whats next?
    I have my eye on the Stasis MS coilovers that someone is selling here on the forums. I sent him a PM yesterday.

  6. #6
    Veteran Member Three Rings
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    Dangerous. Didn't you know you could have caused an avalanche by doing that in the mountains!!! They I liked the MTM one a lot it maybe because it was under load and the JHM one wasn't.

  7. #7
    Veteran Member Three Rings maxbhp's Avatar
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    Only thing that makes them worth comparing is the diameter. I have had both and the difference in quality/fit and sound between the two is as different as a Rolls Royce and Ford Focus. You may have to pay to play but you do get what you pay for. I didn't go with MTM downpipes though because they use HJS cats which are easily sourced and those two pipes are quite easy for most skilled fabricators. The exhaust itself isn't that difficult to create but the MTM resonator and mufflers are magic. Deep, throaty, yet still higher pitched and more exotic sounding than the competition. Sounds like a mix between an AMG V8 and an F355.

    I took the RS4 to a Ferrari 60th anniversary meet because I wanted to bring my kids, ended up in the parking lot most of the show giving sound clips to people that kept asking. Pretty welds too which is extremely important for the road to see.







    Last edited by maxbhp; 04-02-2016 at 04:34 PM.
    Titanium, Carbon Fiber Int Trim, Front lip, B Pillar, C pillar, and seatbacks, Stasis MS, Stern CA's, H-sport Rear Sway, LI-S4 V1 Stealth Hardwired w/ hidden mute in shifter boot, OEM E- codes, JHM Tune, Hypershift SS, Apikol Rear Diff, Full Clearbra, OEM full Euro Interior in Leather/Racecloth, Quattro Suede Eurowheel, Suede shifter and e-brake, 19x10 Forgeline, 285/30, MTM exhaust, Custom 2.75" downpipes w/ HJM cats, Carbon engine cover, Fenders rolled, Color-matched mirrors, Alcon 370mm, Funk

  8. #8
    Veteran Member Four Rings RS4POWER's Avatar
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    You should have mated the MTM catback to the JHM X-mid pipe. That is my setup right now sans resonator.

    I was in the identical boat as you years ago. The capristo had become way too loud for DD use and so it moved on (papayars4's car). Now that the car has become a weekend warrior, I wish I had it back.

    BTW- I would skip the used stasis ms and laborious install and just go for the TTX kit. Alex should be able to source those as well..

    Lastly.. anything more on the RS4 rally "rumor"? :)

  9. #9
    Veteran Member Four Rings badbluers4's Avatar
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    I love it when the OG's jump in a thread.... makes me miss the old RS4 days.....

  10. #10
    Senior Member Three Rings Striddy's Avatar
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    $8k for an exhaust set up? It better shit gold for that price!
    Ghost

  11. #11
    Veteran Member Four Rings badbluers4's Avatar
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    Quote Originally Posted by Striddy View Post
    $8k for an exhaust set up? It better shit gold for that price!
    Capristo, Akrapovic all them shits cost that much. Especially for AMG, and ///M and Porsche etc.

  12. #12
    Established Member Two Rings
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    Quote Originally Posted by RS4POWER View Post
    You should have mated the MTM catback to the JHM X-mid pipe. That is my setup right now sans resonator.

    I was in the identical boat as you years ago. The capristo had become way too loud for DD use and so it moved on (papayars4's car). Now that the car has become a weekend warrior, I wish I had it back.

    BTW- I would skip the used stasis ms and laborious install and just go for the TTX kit. Alex should be able to source those as well..

    Lastly.. anything more on the RS4 rally "rumor"? :)
    I thought really hard about keeping the JHM mid pipe but decided against it because I was worried it would still drone. Yeah I have heard the Capristo can scream!

    I will look into the TTX kit but that may be a little overkill since I won't be tracking the cab. I hear what you are saying about the Stasis MS kit especially with it being a used kit.

    Haven't heard anymore about the Bear Mountain Meet but when I do I will definitely hit you up.

  13. #13
    Established Member Two Rings
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    Quote Originally Posted by badbluers4 View Post
    Capristo, Akrapovic all them shits cost that much. Especially for AMG, and ///M and Porsche etc.
    True!! My buddy says a full Akrapovic for his M3 cost close to $10k.

  14. #14
    Established Member Two Rings seblove's Avatar
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    Hey that's my video with the jhm exhaust!! Sorry if it misled you.. it's definitely very loud, especially catless. And yes it drones for me too in that exact rpm range but worth it imo because the tone is unmatched in terms of how deliberate, exotic, and brutal it is all at the same time. I'm glad you found something more suitable.

    Here's a potato video of my car in gear, for reference:
    2008 RS4 Satin Pearl wrap - JHM stg 1+ blower - full JHM exhaust, resonated & catless - JHM LWFW & 3R clutch - PSS9s + 034 control arms & sways - JHM short shift + linkage - Apikol Rear Diff Mount - Stern Motor Mounts - 034 Snub Mount - 034 Trans Mount - JHM IM spacers

  15. #15
    Senior Member Two Rings AWD Addict's Avatar
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    Dennis...really good information and some helpful details. Thanks! I've become a big fan of JHM's 2.75" exhaust. I'm not sure how much additional power it makes but there's certainly no loss in low end torque. The quality and fitment is excellent too. Everything lines up perfectly. I'm not running any resonators so it's loud but these cars actually have amazing sound deadening so the cabin is still surprisingly quiet. Best thing about it is all the noises it makes. It's all a matter of opinion obviously, but I think it's one of the best sounding setups. The only RS4 exhaust I've heard in person that sounds better to me is the GMG exhaust.

    Here's my car. A couple WOT pulls at 5 min...

    https://youtu.be/T87wwH_yJYs

  16. #16
    Veteran Member Three Rings Mr Hyde's Avatar
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    A very nice, and thorough review.

    I like my resonated JHM exhaust combined with HFC downpipes, but that 2k resonance is my only complaint, and I have on occasion debated tossing on an additional resonator to see if that would tame it, but she's not my daily driver, so I've just left things as is. I had done this previously with my formerly Daily driven Acura TSX which had aftermarket downpipes paired with the stock Cat & exhaust. It needed a Vibrant resonator to get rid of the additional buzz created by removing the pre-cats.
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  17. #17
    Veteran Member Four Rings FastEddie's Avatar
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    Nice well thought out and written review.
    SUSPENSION-KW V3-Hotchkiss RS4 sway bars-034 Adj UCA-034 strut mount-034 F&R end links-034 motor mounts-034 Snub mount W/bracket-034 Trans mount l BRAKES-ECS Stage 4 BBK-ECS rear rotors & lines, Hawk pads l Engine-JHM Tune-JHM 6 rib pulley-Milltek catless DP's-FI exhaust l EXTERIOR-RS4 black grille-Custom headlights-LED city & DRL lights-ECS LED tail lights & plate lights l INTERIOR-Custom steering wheel-SRP pedals-ECS LED lights-MOMO shift knob-Gen 2 RNSE & AMI l WHEELS-OEM RS4 W/ Michelin PSS

  18. #18
    Senior Member Three Rings 4rings-rs4's Avatar
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    Awesome review bro.... Sorry timing didn't work out to connect but glad you are happy with your selection! Thanks for the shout out.

    Have fun driving her like you stole her!!!
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  19. #19
    Veteran Member Four Rings NastyNogaro's Avatar
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    Good review Dennis!

    I actually decided to go a different route so I have a full JHM exhaust for sale now including the downpipes I just ordered. Putting my car back to stock so I can put it on the market soon.

    The MTM is a real nice piece!!
    "Fazz" | Interactive Web & Application Developer | ig: @turbofazz

    2007 911 Turbo 6MT
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    2008 RS4 Exclusive/Premium - Sold
    2000 Nogaro S4 6MT - Sold

  20. #20
    Established Member Two Rings
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    Quote Originally Posted by seblove View Post
    Hey that's my video with the jhm exhaust!! Sorry if it misled you.. it's definitely very loud, especially catless. And yes it drones for me too in that exact rpm range but worth it imo because the tone is unmatched in terms of how deliberate, exotic, and brutal it is all at the same time. I'm glad you found something more suitable.
    Yup that second video shows just how loud it can get but I am glad I got to experience the JHM first hand.

    Quote Originally Posted by AWD Addict View Post
    Dennis...really good information and some helpful details. Thanks! I've become a big fan of JHM's 2.75" exhaust. I'm not sure how much additional power it makes but there's certainly no loss in low end torque. The quality and fitment is excellent too. Everything lines up perfectly. I'm not running any resonators so it's loud but these cars actually have amazing sound deadening so the cabin is still surprisingly quiet. Best thing about it is all the noises it makes. It's all a matter of opinion obviously, but I think it's one of the best sounding setups. The only RS4 exhaust I've heard in person that sounds better to me is the GMG exhaust.

    Here's my car. A couple WOT pulls at 5 min...

    https://youtu.be/T87wwH_yJYs
    You are right the JHM does make some amazing sounds. And you went with no resonators which makes it even more aggressive. Glad you are enjoying it.

    Quote Originally Posted by NastyNogaro View Post
    Good review Dennis!

    I actually decided to go a different route so I have a full JHM exhaust for sale now including the downpipes I just ordered. Putting my car back to stock so I can put it on the market soon.

    The MTM is a real nice piece!!
    Oh man... I was really impressed with your car when I saw it in person. I hope the new option is as much fun as the RS4. I am sure the exhaust will sell quick. I have already had two PM's asking if I still had it. I will send them your way.

  21. #21
    Veteran Member Four Rings NastyNogaro's Avatar
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    Quote Originally Posted by mr_dennis_s View Post
    Oh man... I was really impressed with your car when I saw it in person. I hope the new option is as much fun as the RS4. I am sure the exhaust will sell quick. I have already had two PM's asking if I still had it. I will send them your way.
    Thanks Dennis!! I was so excited to put this on but my plans shifted after some thought. Thanks for the referrals! I'm shocked how many have hit me up about this and I haven't even posted an official for-sale thread yet!
    "Fazz" | Interactive Web & Application Developer | ig: @turbofazz

    2007 911 Turbo 6MT
    2015 Nogaro S4 DSG - Sold
    2008 RS4 Exclusive/Premium - Sold
    2000 Nogaro S4 6MT - Sold

  22. #22
    Established Member Two Rings
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    Awesome review, Dennis. Thanks much for the helpful information. To everyone on this thread, I want to put an aftermarket exhaust system on my B7 RS4, and I think my ideal choice would be GMG. I called them last week and they no longer make it. They also said it would be tough to find one on the market (figured that would be the case).

    So after doing more research, my next choice would be JHM. My RS4 is my DD and I usually wake up early for work (with plenty of neighbors nearby) so I don't want something too loud. I am thinking about starting with the JHM system with resonators attached to my stock downpipes. It seems like every video online has the full JHM system (downpipes and mostly non-resonated). Any thoughts on the set-up I'm looking at? Has anyone heard this in person or online?

    Thanks for your help.

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