Ridemalibu Motorcycle Rentals & Tours – Los Angeles CA
  1. Ciao Guest - We're offering FREE shipping on orders over $99 for U.S. customers now through Monday (11/30) midnight PST. Use COVID-20-FREE at checkout on the STORE tab above — Please support small business! We wish the best to everyone; Stay healthy and hope you can get out and ride! Also, see our Newsletter link in the General Chat section below.

GTM V7 Mk I-III 2>1 SS Exhaust System

Discussion in 'V7/V85/V9 Chat & Tech' started by GTM®, Oct 11, 2013.

  1. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    Details for the GT 2>1 system. Built mostly for looks, sound and weight. It will move the power more to bottom/mid, with zero sacrifice of top end power, and shed nearly 20 lbs off the stock system.
    NOTHING will give significant gains out of the heron-head small block motor outside of our 4V head conversion. Power gains is in the bottom/mid power, not high-rev top speed.
    The stubby can, per my postings and video is INCREDIBLY LOUD, as it's barely a muffler of 6" long.
    More details below.
     
    Poppe likes this.
  2. mnguzzi

    mnguzzi Tuned and Synch'ed

    Joined:
    Jul 22, 2014
    Messages:
    30
    Likes Received:
    8
    Location:
    Minnesota
    As another V7 owner who has thrown down on the 2>1 and ECU remap I thought I could offer another response. First in the interest of full disclosure, the V7 is my first bike. In stock form, the V7 was comfortable, but uninspiring. After the break in period I would rarely get the tach over 5k. Why? Because it sounded like the bike was dying. Not stammering, stuttering, or fueling related dying, it sounded like it was literally dying. After installing the 2>1 the bike sounds like it is willing and able between 5k-6.5k. With fueling flat spots sorted out through the ECU remap and a sound that says the bike is willing, what is left? You suddenly find yourself making more strategic gear choices because you are riding the bike at the edges of it's performance envelope. Sometimes 45-48bhp runs up against what you want the bike to do. In regard to looks, the GT-Rx 2>1 follows the lines of the bike better than the stock system and the other aftermarket offerings. The symmetry of the vertical down flow headers, with them following the angle of the frame from the side, it just looks right. If that isn't important to you then so be it.
     
  3. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    Thanks for the post. All too rare by those who spend and enjoy the offerings here. Appreciate the business.
     
    Poppe likes this.
  4. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    Posting a review here is most helpful, even if it's negative, at least I have an opportunity to respond and correct the issue before the Guzzi world has a chance to read all of the ignorant group-mentality-pile-on responses. Based on your post, it just gives more fuel to the fire of negativity towards me/GT there, as you hopefully saw.
    Static ECU mapping is *really* tough as every motor is different. The fact that the factory can allow the bike to run at all with their emission constraints is miraculous.
    The owner of the bike you rode wrote me and said he loves it, and didn't feel any issues. What you likely felt, is the boost in bottom end/mid-range power makes the top end feel blah. Stock exhaust and/or aftermarket mufflers have to pull out of a HP/fueling hole, which makes it *feel* like it builds power. These motors sign-off at a tick over 5k RPM. It will rev above that, but power stays the same due to the terrible flow of the (Heron) head design.
    What amazes me, is that many new faceless businesses have more traction in the Guzzi Community by throwing a paint job, knobbies, high bars and open exhausts with zero fuel corrections on a V7, then someone who is focused on making things work/go better for nearly a decade and a half. I am as accommodating as I can afford to be when it comes to products and offerings, more so then any I've dealt with in 30+ years. As I've posted before, I'm not perfect, but I work on operating with integrity best I can in having a life outside of this website. I purchase and test everything I offer here, as they have to work to my expectations as a Pro Rider/Racer of 42+ years and well over 1.5 million street miles (250k+ on Guzzis), not including any racing or dirt riding, which I've done a lot longer.
     
    scudracer likes this.
  5. rbm

    rbm Cruisin' Guzzisti

    Joined:
    Mar 7, 2012
    Messages:
    172
    Likes Received:
    31
    Location:
    Toronto
    Todd, it's the same mentality that drives house buyers to look at just the surface treatment in a house for sale, rather than investigating the infrastructure elements like furnace, insulation, plumbing, etc. Superficial bling wins.
     
    GTM® and ChupaThingy like this.
  6. Gruzzer

    Gruzzer Tuned and Synch'ed

    Joined:
    Apr 12, 2013
    Messages:
    37
    Likes Received:
    38
    Location:
    Los Angeles
    I have the GT-Rx Reflash (running Mistrals w/ no baffle, High Flow Air Filter) and the bike runs like a dream. No coughing etc when I do the ton or at any other speeds. The reflash was done specifically for all of the Mods that I listed. Even changing something as small as putting the baffles back in would throw the whole thing off (I have tested it). So, as Todd said, swapping between his exhaust is going to throw a wrench in the setup / perform differently.
     
    GTM® and Canada72 like this.
  7. Wisconsin v7 Racer

    Wisconsin v7 Racer Cruisin' Guzzisti

    Joined:
    Dec 22, 2014
    Messages:
    370
    Likes Received:
    223
    Location:
    Wisconsin
    Switched pipes took it for a short ride still love it.

    2015-06-24 17.58.51.jpg
     
  8. fireflyr

    fireflyr Cruisin' Guzzisti GT Contributor

    Joined:
    Oct 25, 2012
    Messages:
    160
    Likes Received:
    86
    Location:
    Hart Flat, California
    I like the power delivery with Todd's reflash and the 2-1 pipe much more then the stock setup. I bought a MG because I don't like having to wring a motor out to get the horsepower, the pipe/reflash combo makes the bike more comfortable to ride and I'm not stressing the engine. At all.
    Keep doing what you do Todd, I appreciate your effort and completely enjoyed the day I spent at your shop.

    Pat
     
    Wisconsin v7 Racer and GTM® like this.
  9. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    We just finished up our 2>1 for the V7 Mk I & II as shown below (only, no other options outside of finishes, brushed as shown, polished or coated). It will fit ALL V7 I & II's regardless of model. Yes you will need to revise the fueling in order for this to work. Click on the pic below for details, or find it in the Store of course. We will be soon offering a more conventional muffler exit location as well. Watch the online Store. Before you ask, these are not street legal, and yes they are on the loud side (compared to stock VERY loud) if you have to ask... however far from most all HD's on the road today.

    [​IMG]
     
    mwrenn and Gruzzer like this.
  10. King of Fleece

    King of Fleece Cruisin' Guzzisti GT Famiglia

    Joined:
    Dec 10, 2014
    Messages:
    246
    Likes Received:
    44
    Location:
    Western New York
    My V7 (MY 2015) has Agostini pipes with the GuzziTech reflash-the bike runs perfect. ZERO popping at any speed-just today I wound it out to 100 and shut it down-perfect. No pops, no stumble as I rev it up-NOTHING bad at all.
    I couldn't be more pleased.
     
    GTM® likes this.
  11. Wisconsin v7 Racer

    Wisconsin v7 Racer Cruisin' Guzzisti

    Joined:
    Dec 22, 2014
    Messages:
    370
    Likes Received:
    223
    Location:
    Wisconsin
    Short video I uploaded.
     
    roadscum, Poppe and GTM® like this.
  12. Xiong Yang

    Xiong Yang Just got it firing!

    Joined:
    Nov 25, 2015
    Messages:
    2
    Likes Received:
    5
    Location:
    San Diego, CA
    I waited and have been riding my bike diligently to ensure I had a proper mind and reference(s) for this V7I-II Full 2>1 and after having said and done all of that: I am thoroughly impressed with the work done with this system. Note: I have had GuzziTech install this and also have had the fuel mapping done to the ECU; performance has remarkably been improved across the board: response and feel have are literally day & night. I took one bike in and came out with another!

    It's a smart beautiful package, with proper tuning this system is an aesthetically pleasing aftermarket replacement with performance to back it.

    I was rather fortunate enough to order a version different from what I had received, the technicalities of the V7II forced the build to convert from a UB Stubby to the custom non-removable-baffled UB which my ears and I thank Todd, in his infinite wisdom, for said technicality. This baffled-version is still (yeah, STILL) remarkably loud (I can't even imagine a non-baffled can, now...) probably punching in around 90-95db on idle; I'm paranoid of the noise some early days (and late nights). Remember: decibels are LOGARITHMIC UNITS, with normal (well, most normal,...) conversations at 60-63db. The 2>1 system is throaty, punchy, growls on deceleration (no popping), and slightly less annoying loud than my slip-on Agostini's with the baffles removed.

    Make no mistake: its presence is duly-made, it can be heard coming and it can be felt bouncing off cars a few bike lengths away (I've had other riders tell me it rumbles off cars as I lane-split). There's a satisfying shake of the ground in close proximity and honestly, the exhaust peeking out just from the underbody just looks b****ing, excuse my French. Aesthetically, it's pleasing and from a maintenance stand-point you can now reach under and through the back of the V7 where two cans would have restricted one's access. Construction is impeccable and the headers run cleanly along the lines of the bike. The Y-Tube is neatly tucked just past the sump and the lambdas are smartly placed (nice job!). I have not had any clearance issues, I've been able to run the bike up ramped sidewalks (not driveway dips, like really: legitimate sloped & ramped sidewalks) with no issues and I have not had any problems running over speed bumps at speed (that'd be a suspension issue, actually,...). Again, I really want to stress how aesthetically pleasing this is! One part of my wished I got black power coating but the sane part of me loves the way the pipes have blued!

    In terms of performance, this isn't going to win you any track days and it isn't going to beat any liter bikes (I also have an '09 Yammy R1 for reference. I purchased the V7II new with nary any miles on the engine.

    I've broken it in quite well and as I stated earlier- having the 2>1 system installed has literally been like receiving a new bike. I've owned a '14 V7R prior to this (lost to an accident, unfortunately) and I've rode the bike to the ground (quite literally) at an astonishing 17k racked up in one year; I went cross-country...something every adventurous-soul should do, and I believe I have the feeling of the V7R down. The first immediate difference is the throttle response; it's no longer sluggish and its acceleration is accented by the punchy bass emitted from the underbody can.

    My only issue is that I "feel" (I'm stressing just myself) second is lackluster. It's feels like it sits in this purgatory of acceleration and speed; never quite satisfied with the amount of the broad torque across this gear. I feel like it's more of a rolling gear than something I'd actually ride in- opting to use 1st for slow-speed or 3rd and above for the general riding. I simply can't put my finger on it but I think the bike rides fantastic in 1st and 3rd that 2nd really just the "next neutral," it isn't bad but it isn't remarkable either.

    Fueling has been exceptionally better and the spark plugs are taking a nice clean burn rather than its lean (clean) look. Again, the more I ride this and the longer I ride the headers have taken a beautiful blue (minus the few fingerprints on the right side when I carelessly applied when cleaning the forks,... doh!). The pipes look like they'll take on a nice patina and accentuate the aesthetics of the bike further. Sound is remarkably tolerable and a pleasure to hear and the bike has never felt better! I highly recommend this system to anyone looking to make a performance impact on their V7.
     
    Poppe and GTM® like this.
  13. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    We're working on the new 2>1 prototype for the V7 III using both the GP-style Meg (shown below) and the smaller reverse cone underbody muffler as shown prior in this thread. I have eight total V7 I & II 2>1 systems on the shelf ready to ship now, along with four total sets of my GP megs for the V7 III (brushed and polished, black would be ~5 days extra). All on the online Store; https://www.guzzitech.com/store/category/exhaust/v7-small-block/?min_price=597&max_price=1650 -- we have the proto done for the V7 III & V9 full system done, and I will show it off here soon.

    GTRxExh-V7IIIR-2-1.jpg
     
    TBro, schajo and Poppe like this.
  14. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    I have five (5) full 2>1 & 2:2 systems for the '11-16 V7 I-II in stock (Store tab above), and will have the same ready for the V7 III & V9 in one more week - I'll put them online when done and post here. My V7 III 2>1 system shown below on my Racer III 820R requires evap cann removal, which my system will come with a new frame cross tube (shown in pic below with my clamp if you zoom in), with the evap cann holder bracket removed.

    IMG_2220.JPG

    I also have a few pair of my slip-on V7 III mufflers in stock in brushed stainless. Mirror polished or black cerakoted as shown below available but will take 3-5 days extra to ship.

    IMG_1838.JPG

    IMG_1739.JPG
     
  15. ChupaThingy

    ChupaThingy Just got it firing!

    Joined:
    Apr 21, 2016
    Messages:
    23
    Likes Received:
    16
    Location:
    Anacortes, WA
    As of yesterday I have finally installed my 2>1, and taken it out for a test ride.

    All I can say is GOOD LORD. As soon as I fired it up my eyes got big, the sound on this system is absolutely superb!
    The ride was excellent; the system + reflash put the power exactly where it needed to be. I feel like I have a completely different bike. The added weight reduction and performance from the 2>1 totally transformed how my ride handles. Very, VERY happy with the exhaust. It definitely gets you noticed, I had neighbors come outside to check out where the sound was coming from. :cool: Lots of wows all round.

    Extra special thanks to Todd for the all the support!!

    If you are even thinking about getting this system, just go for it. You'll be glad you did.
     
    Poppe, Wisconsin v7 Racer and GTM® like this.
  16. GTM®

    GTM® Administrator Staff Member GT di Razza Pura

    Joined:
    Jul 1, 2009
    Messages:
    11,485
    Likes Received:
    3,578
    Location:
    Malibu
    Heh, excellent! And my pleasure.
    I have four of these on the shelf, and we are finishing up the full 2>1 for the Mk III this week. Brushed megs shown below with weld coloring. The black version has the coloring on the end only like shown above, and the polished is mirror-like from head to tail.

    DBEA0A25-8D0B-4CB7-A5A4-44CD8CCAA43D.jpeg
     
  17. Robert Gibson

    Robert Gibson Cruisin' Guzzisti GT Contributor

    Joined:
    Jul 20, 2016
    Messages:
    495
    Likes Received:
    358
    Location:
    Menorca, Spain
    I don't have a V7, but if did!!!!!! beautiful work Todd.
     
    GTM® likes this.
  18. Poppe

    Poppe Cruisin' Guzzisti GT Contributor

    Joined:
    Apr 28, 2016
    Messages:
    308
    Likes Received:
    127
    Location:
    Los Angeles
    Haha. I jumped up and down the first time I heard my 2:1. I had done so much research and was so nervous about trying to get the perfect sound for the bike. I really didn't believe it when I heard it.
     
    scudracer, GTM® and ChupaThingy like this.
  19. Wisconsin v7 Racer

    Wisconsin v7 Racer Cruisin' Guzzisti

    Joined:
    Dec 22, 2014
    Messages:
    370
    Likes Received:
    223
    Location:
    Wisconsin
    When I installed mine it was the middle of a cold Wisconsin winter and my bike was in my living room. Yeah I fired it up
     
  20. Poppe

    Poppe Cruisin' Guzzisti GT Contributor

    Joined:
    Apr 28, 2016
    Messages:
    308
    Likes Received:
    127
    Location:
    Los Angeles
    That had to be the most terrifying and most brilliant thing ever. Neighbors think you've gone mad. Haha.
     

Share This Page