what our clients are saying

Brought my 16 victory magnum into Rob's dyno had cams installed and dyno tuned. Awsome service and very knowledgeable about all aspects of any motorcycle. Would highly recommend for all motorcycle need's.

- John D. | March 2020


I have a 2016 Victory Magnum. I had an Andrews cam and high flow intake installed. Rob and Dan take pride in their work and stand behind it. The Dyno numbers were very impressive. Rob has the ability to tune the Victory without the use of a power commander or cam timing wheel. Which makes for much a much less complicated installation and saves you money on unnecessary components. I look forward to many miles on the new setup. Thank you Rob and Dan job well done!

- Stuart K. | January 2020


Top notch tunes from this guy my victory octane went in to have the power command V removed because I was not happy with how it ran and had him put a dyno tune put into ecm. I will say the bike rides night and day better then it did. More then pleased with how it turned out.

- Joseph E. | November 2019


Took my Softail Slim to Rob because the dealer had used a generic map after installing stage 2 kit, cams and TBR exhaust. Bike was running real rough. Rob is really knowledgeable. You can tell he loves bikes. This bike is ridiculous how well it runs now after having it dynoed. Can’t say enough about this place.

- Tina P. | August 2019



Picked up an 11’ dyna and wanted to do some upgrades. Didn’t want to bring it to the dealer and have some punk kid sell me garbage, so I poked around online and found this guy. Definitely worth the wait. Good advice on cam craft choice, and cam chest upgrades. His tech Dan is super nice, very meticulous and went out of his way to help with some specifics. Rob is a wiz on the dyno, and I’ll definitely go back if I want to do anymore upgrades.

- T Lilley | July 2019



Hi Rob Jim Beatty here. Well here is some feedback on it. I knew how it was going to be at your place starring out from a stop. I literally could have turned around 100 feet down the road out of your driveway come back and parked it. I took it out on the highway the next day Wednesday the 12th and it was like the Rolex I wanted instead of the shitty Timex I had. It was smooth in shifting up to 5th gear without a stutter a skip or a hint of hesitation at all.  The power the pick-up it awesome. Due to weather and work I did get out again the on this past Wednesday with just around town riding. I have a huge smile on my face now because of the fact of how it runs now. I honestly HATED my bike and could not wait til the day I had to bring it to you.

- Jim B. | June 2019



I have to say this is a great place to have your bike performance checked and improved! Of course for best results you should consult with Rob prior to any modifications. He is very knowledgeable and can educate you in all the components and all possible options.

- Boris S. | February 2019



This note is long overdue...sorry, I've been out riding. Fella's I can't Thank You enough or even begin to tell you how happy I am with my Road Glide, she has more power and the ride, it's smoother then I thought a Harley could be. Just goes to show ya, if you get the right people doing the job - great things happen. Last year (2017) while in Mass. for a bike trip, my friend (Jeff) let me use one of his Road Glides. You did the tune on the bike, I rode if for 5 days; 1,500 miles (the ride wasn't just around the block) and I was totally impressed with how she ran. Before I cam home Jeff brought me in and introduced me and you and we talked about what I was looking for.


I live in California and was having some trouble with my 2011 Road Glide, plus she was getting tired and lacking the power I was looking for. So...I did was any Sane man would do, I sent my bike from San Diego, CA to your shop in Mass. You and Dan bumped her up to a 110, put on new suspension, then did one Hell of a Tune on her. I can't tell you how much fun it was to ride home from your shop to San Diego (Sept. 2018). I was having so much fun, it took me almost a month to get home. I kept checking the map, looking for all the twisty roads I could find.


Now, back home, I'm tearing up the California mountains on this beast...she is a ton of Torque, just what I was looking for. She make getting up and down the mountains one hell of a good time. Even when I have to get on the Freeways here in CA, she'll keep me out of trouble with just a twist of the throttle. Thanks again.

- John G. | October 2018



Rob, just wanted to give you the feedback after taking my bike to the track. HOLY CRAP what a difference. The smoothed out fueling let me ratchet throttle much more effectively, which let me hold more speed through corners and smoothly accelerate out of corners with less jerkiness. As the numbers show, I didn't really have any gains on the straight, but where it counts there was a massive improvement. I'll definitely be recommending your services to friends... and also may take you up on doing another mapping with the baffling out to actually get better top end. I'll see if I can get this flashing process a bit more stable for next time...

- Greg D. | September 2018



UN-F%#*ING ELIEVABLE!!!...I just got off this beast and I am telling you I am totally impressed...when I was watching you tune this thing and I seen the torque reading over 140 on the initial runs I was thinking I can't be reading it right...then as you went on and told me it was correct and impressive too...I knew it was going to be worth the work you guys did to it...when you were running the last runs I was watching not only the hp and torque but the speeds were at 136 m...ph and was thinking to myself thing is gonna be a rocket...it is! When I'm cruising along in 6th about 2700rpm' 85 mph and just roll that power on the goddamn speedometer needle drops like it is a tachometer!!! Goes to 110 in a second like the throttle is mechanically attached to the needle...I'm telling you man this thing is awesome!!! Not only all the excitement you can pick up from my words about the power but the bike itself is so smooth throughout the shifting...it handles like a dream...thanks to you and Dan for all you did!!!

- David Alexandrovich Jr. | August 2018



Just got home from Rob's Dyno Service with my bike. If you are planning on adding a Power Commander or similar product, check him out first. Was never really happy with those products and how my bikes ran, even after paying good money to have them tuned. Rob put in the time, money and took factory courses to know these fuel systems inside out, which is why he is the only one to figure out how to get into them and reprogram them to make your bike run it's best, especially important if you add exhaust, air cleaners, cams, etc. My bike is definitely more responsive, sounds better, runs stronger and just feels all around better. Indians, Harley's, Victory's, Honda and others will all benefit from his services. We all pay good money to have these bikes, don't cut corners or screw things up, go to Rob's Dyno Service and get it done right.

- Tim Shea | June 2016



Finally took my 2013 FLHTK to Rob after years of being unhappy with the dyno tune provided by my Harley dealer. My gut told me my engine could run better. I was not sure if Rob could help me because my dealer told me my bike ran good and nothing was wrong with my setup. Guess what? I was right and the dealer was wrong. My engine idles, starts, runs and sounds like I always knew it should. Give him a call, make an appointment and enjoy the full potential of your Harley.

- Kerry Lewis | June 2016



I just wanted to say “Thank you” for giving me back my Freedom. I was at wit’s end, and in a state of depression after spending thousands of dollars on engine modifications on my 1999 FLHTPI with 198,000 miles on the engine ( all but 97 miles were mine. I ride a lot ). After getting it back from the shop I got on it and it ran like “Poop”. 

I was told about you and made an appointment. I am so glad that I did. I arrived at the shop with the bike on the sled in the rear of the cage, because It was running so poorly. After watching you do your magic on the Dyno and seeing the old girl hit 133 MPH, I knew I had made a good choice bringing my bike to Rob’s Dyno Service. Once it had passed Rob’s high level of standard, He asked me to take it for a ride to make sure I was happy. I WAS MORE THAN HAPPY. I was pissed that I had to put it back on the sled to bring it home. I wanted to get on and ride. I rushed home took it off the Trailer, and put a FOR SALE sign on the trailer. 

Praise the Rob Swartz the “Dyno King”. I road my bike late into the night, and to work this morning. I plan to ride at least 30,000 miles till the end of the year. It runs like it did when I bought it in 1999, but better. In the future, I will be bringing the bike to Rob for any future engine work.

- Jeffrey D. Barr | Road Captain, Boston HOG, Editor - The Epicurean Review, Director - N.E. Foodies



Rob & Dan, A Million Thank You for making my 2015 HD 48 Sportster absolutely Amazing & a Monster!!!! Words can not describe how wonderful the experience was…. Between actually seeing how the Dyno Testing goes and seeing the before & after difference in torque, to the patience of working with me to help me find the perfect parts to make my bike custom so when I ride its so comfortable. You helped us save so much money down the road and such a headache because without you guys we wouldn’t of known where to start & probably would of bought stuff that wouldn’t of worked. My husband was speechless when he hopped on it to just move it, he could feel a Huge difference in torque right away. Before it puttered as you eased off the throttle and onto the gas but now its so smooth and you let the throttle out and she’s ready to go. For once in all the years I have ridden & had to adjust to the way the bike was & what I had to work with. It's wonderful to have a bike custom to work with me for once! She looks nasty…She sounds nasty… She handles like a beast and I’m absolutely in Love with her!!!!!! You will defiantly be seeing us again to do Ben’s KTM!!! We will most defiantly be sending people out your way!! Thank you again!!!!!!! 
- Jacky Anderson | April 2016