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It’s the same for a piggyback. Would need to retune after each change in setup. I took the longer route on mine and got filter, exhaust & piggyback first, then had it tuned. Added cams about 18 months later and retuned. About $250 more expensive that way due to the 2nd round of tuning, but easier to manage money wise as I took that 18 months to save up for the cams & install.
I did pipes and air filter and just loaded a stage 1 map for the Maximus. I am good to go until I go for cams. Will get a custom tune then.
 

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@crosscountryla, is your best sounding baffle system able to fit into the Cobra Tri Ovals? I still have a NOS set of all chrome Tri Ovals I'd like to do something with. Your post above was, for me, educational. I didn't know the deeper the sound goes the lower the horsepower goes. Like many others, I want the highest/flattest torque curve possible combined with the highest horsepower and the deepest bass available.

I rode with the Cobra Tri Ovals for over 40K miles, then I went with your Medium Low & Throaty for another 30k+ miles. I've had your Adjustable DDT mufflers for the last 24K miles. IMHO, the sound went from good with the Tri Ovals, to much better with the Medium Low & Throaty to Loving It with your Adjustable DDT mufflers.
 

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My non-adjustable and adjustable DDT mufflers baffle is based on dyno results.
@crosscountryla, is your best sounding baffle system able to fit into the Cobra Tri Ovals? I still have a NOS set of all chrome Tri Ovals I'd like to do something with. Your post above was, for me, educational. I didn't know the deeper the sound goes the lower the horsepower goes. Like many others, I want the highest/flattest torque curve possible combined with the highest horsepower and the deepest bass available.

I rode with the Cobra Tri Ovals for over 40K miles, then I went with your Medium Low & Throaty for another 30k+ miles. I've had your Adjustable DDT mufflers for the last 24K miles. IMHO, the sound went from good with the Tri Ovals, to much better with the Medium Low & Throaty to Loving It with your Adjustable DDT mufflers.
I would not install the baffle that I use in my non-adjustable and adjustable DDT mufflers in a set of Tri-Oval mufflers. The front end and back end of the Tri-Oval mufflers are totally different from the stock Cross Country mufflers. Using the same baffle that I install in my adjustable DDT mufflers would be a guess as to how the exhaust would sound and also what the torque and hp curve would look like.
 

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@crosscountryla I have a set of chrome stock xc mufflers I just keep moving from one storage rack to the next. Any chance you'd want them?
 

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You know it's just the heat shields that are chrome. The insides are all the same.
 

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Sorry, the welds broke loose on one megaphone cone. I have been flooded with lots of guys wanting me to rework their set of Cross Country and Vision mufflers. I was welding the thinner metal on the muffler shells and when the phone rang and I went into my house to cool off and take the phone call. I know now that I forgot to turn up the heat setting on my MIG welder to weld the thicker metal on your megaphone cones on the ends of each muffler. Based on the exhaust sound that you told me that you wanted to hear that's why I made you a set of DDT adjustable mufflers and set the baffle in that position. If you want higher horsepower that means you need a really free-flowing set of mufflers and that makes the exhaust sound much louder than the mufflers that I reworked for you. Exhaust sound and HP are a trade-off. You can't have high HP and low exhaust tone too. It's great to get compliments on the exhaust sound, isn't it?
Yes it is!
 

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After long conversations with crosscountryla over a couple of months, I finally pulled the trigger and got the DDT mod to my exhaust, just a heads up to others, it cost me apx $60 each way to ship the pair with FedEx. the turn around time was quick, even with having to wait a couple of days for him to paint as the weather was too wet at the time, got the box back, and opened everything up, the saddlebag pads were missing and one pipe had the exhaust cone broke off, called and he sent me the pads right away (honest mistake, no problem), and I had my son reweld the exhaust cone back on, so all good there. After a little tappy tap getting them on and clamped down, I was off to the races!! I had a 1K ride with my MC and the guys who said I sounded like the Jetsons before were quite surprised when I pulled in for the ride! The volume was good for me and the sound was dialed in nearly perfect for the event, but the wife wore her earphones for the ride, (too loud for her) so I will be testing the adjustable part of the pipes soon. A couple of other guys at the event have Vics as well and they were impressed with the sound and tone as well. I have stock everything, so just a note to others, I lost a bit of the high end HP with these pipes, I now understand better why a tune is necessary, so for my next trick, LLoyds air filter and a tuner, just not sure which direction or brand yet. Thanks for the upgrade crosscountryla!
What makes you think you lost HP? Just because one exhaust system revs out faster than another exhaust system does not mean the faster revving exhaust system puts out more HP. The Vance and Hines mufflers rev out really fast but lose a torque below 3,500 RPM.

Dave

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Greetings @rustybones49801,

As others have stated, the least expensive way is one tune session. Buy the new parts, and shelve them until you can do the Maximus tune. Do it all at once.

Just my .02

Ride safe,
Smokier
 
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