Can I fit an exhaust made for a different model of motorcycle on my motorcycle?

Question

Noob question. I have a 2013 Triumph Street triple and they don't have the best selection of exhausts. However there is a lot more variety of exhausts for the Triumph Daytona.

The two motorcycles are like sisters; both have the same engine, same cc, its just tuned different.

Would it be bad to fit a Daytona exhaust to my street triple?

Answer 1

"Can I fit an exhaust made for a different model of motorcycle on my motorcycle?"



Almost certainly not.



If the part numbers are the same, the exhaust will fit. If the part numbers are different (which is the most likely scenario), it won't fit, without some major modification.



It's not just the engine that matters, but how the exhaust is routed and the mounting points on the bike. Even if you could get it to fit, the different tuning of the engines means you may actually reduce the performance of your bike, if you fit the wrong exhaust.

Answer 2

You specified actual motorcycles, models with same engines- close to the record here for good info. In your specified case- more than likely the mufflers would slip into header pipes and be close to mounts on the frame, if not then short adapters and mounting brackets off the shelf likely available. You have same frame and engine in slightly different style for the market and slightly different tune- the Daytona street and Speed triple semi sport with shorter, noiser muffler. Bring the tape measure and double check, look at catalog interchange for numbers. a after market slippon that says fits/replaces the Daytona and the speed triple muffler and couple others strongly implies cross compatability of the OEM numbers. Dealers parts interchange for the mechs may have it listed with mounting hardware needed- as in use this nut and clamp bracket. Harley CH shorty mufflers often put on the H- and the leftover H set put on the straight pipe user with the noise ticket with one extension pipe needed.

Answer 3

I dont think it will do any harm... after market exhausts are used all of the time. however IF the daytona exhaust has more material inside of it to silence noise than youre stock exhaust. That will lead to power loss from the engine. This happens because exhaust needs to travel out the exhaust pipe and if it has to go through a spark arrester that will mean that the air will escape slower meaning that the engine will pressurize the exhaust in the pipe causing energy from the engine to be wasted on getting rid of exhaust.. with that being said if the exhaust pipe has a thick spark arrester it probably wont preform the same. But if the stock exhaust and the daytona are similar it shouldnt feel much different

Answer 4

Do you mean the silencer/muffler section?



Yes you can, it would be simpler if the method of joining to the headers or catalytic converter are similar, springs and eyes for example. if the mounting points are in a similar position it would help but brackets and straps can be made or adapted.



Header pipes would be a more tricky proposition.



And remapping the fi is not always as simple as plugging in a laptop.



I don't know how far you have looked but there are a decent number of exhaust systems designed for the Street Triple.

Answer 5

Sorry guys i havent been on answers in years and can't figure out how to edit my question. Yes i meant just a slip on. Not the full system. The exhaust im looking at just connects to the rearsets on the daytona and those dont differ too much from the street triple so i could just fab up something to make it work. I was mainly worried about the engine and if it would compromise it and its performance

Answer 6

Yes. It wont fit, but can be modified.



Not sure why you cant find a system for a Street Triple. There are lots out there.

Answer 7

You would have to change the mounts for the muffler. It may even be the same muffler, but they mount to the bike differently.