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Put a set of Agostini pipes on the new Anniverario over the weekend. Put about 20 miles on with the baffles in, and about 20'miles with the baffles out.With the baffles in my completely stock KTM 690 Enduro is considerably louder. With the baffles out Harley Davidson riders are covering their ears and yelling at me but I can't hear them over the bike.Pretty sure I am putting them back in. Might ride it around like this for a day or two just for fun. But it may give me a headache.
Interesting. The Agostini pipes on my V7 are plenty loud with baffles in.I'm curious as to what might account to the difference.
The KTM 690 with a open exhaust has one of the loudest exhaust notes on the road, that bike would straight up BARK at me whenever I pulled the clutch in. In comparison a V7 with open pipes is downright civil.
Having 4 bikes in the garage right now with stock exhaust systems (including 2 Harleys) I think I can answer this one.Baffles in = not an asshole.
The different, both obsolete, cylinder head designs between the old bikes and the III series will mean different types of noise with identical pipes. Long and the short of it is they'll both run worse the louder they are. If being a noisy moron is important to you? Knock yerselves ot. Just don't pretend the bike runs better. Pete
I'm waiting for a real, no crap, dyno comparison of the stock exhaust vs aftermarket with tune. My money says that the difference will be minimal....maybe 2-3 hp with a loss of torque. I know that my V7 saw almost no difference with a tune. The bike did run smoother through the rev range but hp and torque were almost identical. In that case the limiting factor was Heron head design, not intake/exhaust. The V7 III is bound to have a jump up in performance due to an improved combustion chamber but Guzzi does not tend to leave a lot of performance on the table.
In these days of ultra lean factory tuning also aimed at noise reduction ahead of performance, I don't think that is completely true. A moderately freer flowing pipe coupled with a ECU tune/remap can improve a bike's performance. I know putting the termigoni slipons with the "racing" ECU really made my Hypermotard run much better.My V7iii, by the way, had extremely few pops with the baffles in. With the baffles out lots of popping in decel. Of course that is without a remap, and supposedly the ECU will learn to some degree.
I think it's been demonstrated more than once that the heron head design is the limiting factor in smallblock power. The only efforts that I've seen which produced much of a result involved larger pistons/jugs and/or headwork (like adding valves).Shy of that a remap and some pipes aren't going to do much of anything for peak smallblock power.Remember that most emissions standards for motorcycles are limited to very specific conditions like idle and steady throttle. Maps are often unregulated in heavy or wot conditions.
KTM is 100% stock. I was actually surprised how loud it was in comparison.Even when I had a Ducati Hypermotard 1100s with Termigoni slip one I kept the baffles in. On that bike using slipons still left the catylist down under the engine. I believe the catalyst actually did much of the noise reduction.The Agostini pipes are straight through, even with the baffle. Actually amazing how quiet they are with the baffles in. You hear the engine chatter about equal to the exhaust.
Agreed, although the V7iii does not have Heron heads.One or two horsepower, drop 15 lbs, run a bit cooler (the catalysists are gone) and a deeper, throatier sound ( with the baffles in), should be all anybody expects from a set of pipes and a remap.
Wait...HD riders are complaining the pipes are too loud???what has the world comes to?!?!KTM from what I have noticed are always build like dirt bikes even with their street bikes.To your original question: due to incident that has occurred here in Great Vancouver area (https://www.reddit.com/r/vancouver/comments/6rds4z/harleydavidson_owner_says_neighbour_trashed_bike/)and my most awesome wife is a super light sleeper, I personally choose to have the baffle in...It is already loud "enough", but I do agree it does sound more awesome without the baffle...
(Sigh.) Not the old 'The new bikes are all mapped up way too lean' argument. It's been explained a dozen times that isn't true. I really can't be bothered rehashing it all over again, it's just plain tiresome.
Rob , listen to Pete . Him and Beetle have done more research into how modern small blocks work than probably anyone . Dusty
Sincerely sorry Pete, did not intend to cause offense.