Can It Be Done
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Seasoned HDF Member
Joined: Mar 2008
Posts: 9,384
Likes: 1,776
From: Central Texas
Can It Be Done
As you can see in my sig pic I have a higher than stock performance engine, but the exhaust noise is about to run me stinking crazy. Can I go back to a stock exhaust, with out ruining my engine? If so what will I need to do, put a new canned map on it, till I can get it to a dyno tuner, also can I ride it 100 miles or so to the place that put the first canned map on it with out hurting my engine, or will I need a trailer?
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
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From: poway
I wouldn't do it.. The 07 FKC has a crappy exhaust system with the left pipe teeing off the rear headpipe.. I'd use a Kromeworks or SnS 2-1-2 and a set of quiet aftermarket mufflers like supertraps, SnS or big lewy's with 2 inch baffles. A 2-1-2 shares muffler volume so the end results is quieter than true duals.
Outstanding HDF Member
Joined: May 2014
Posts: 3,410
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From: Palm Desert,CA
If it's volume that's bothering you I would look at 1: ear plugs or 2: super trap supermeg exhaust (or perhaps fuel Moto equivalent if they offer it).
I love my supertrapp, it's tuneable and very very reasonable in volume. I purchased it for exactly that reason since my last one was driving me bonkers.
I love my supertrapp, it's tuneable and very very reasonable in volume. I purchased it for exactly that reason since my last one was driving me bonkers.
HDF Community Team
Joined: Jun 2006
Posts: 12,776
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From: san antonio
I wouldn't do it.. The 07 FKC has a crappy exhaust system with the left pipe teeing off the rear headpipe.. I'd use a Kromeworks or SnS 2-1-2 and a set of quiet aftermarket mufflers like supertraps, SnS or big lewy's with 2 inch baffles. A 2-1-2 shares muffler volume so the end results is quieter than true duals.
No maps please; you may not even notice if the tune is affected but get it on a dyno after the exhaust change to optimize as it will need a tweak. Some configuration are exhaust sensitive; not sure if yours is though. No need to trailer the bike to the dyno.
Banned
Joined: Jan 2017
Posts: 894
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From: Jacksonville FL
If your bike has O2 sensor, your ECM can adjust fuel +-25%, at least it is automotive ECM adjustment range. Some ECMs can do +-35%.
I am a car mechanic, I think bikes with O2 sensors don't need any dino tuning.
Scanner will show average fuel trim(fuel delivery adjustment) +10%, if you increase engine volume by 10%
I am a car mechanic, I think bikes with O2 sensors don't need any dino tuning.
Scanner will show average fuel trim(fuel delivery adjustment) +10%, if you increase engine volume by 10%
Stellar HDF Member
Joined: May 2009
Posts: 2,066
Likes: 97
From: Northern VA
If your bike has O2 sensor, your ECM can adjust fuel +-25%, at least it is automotive ECM adjustment range. Some ECMs can do +-35%.
I am a car mechanic, I think bikes with O2 sensors don't need any dino tuning.
Scanner will show average fuel trim(fuel delivery adjustment) +10%, if you increase engine volume by 10%
I am a car mechanic, I think bikes with O2 sensors don't need any dino tuning.
Scanner will show average fuel trim(fuel delivery adjustment) +10%, if you increase engine volume by 10%
Banned
Joined: Sep 2009
Posts: 3,569
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From: deland,florida
if the pipes in the pic on your sig are the pipes your running,you can go to a quieter pipe that will do a lot better HP and especially TQ wise,go with a SUPER TRAP SUPERMEG
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Banned
Joined: Sep 2009
Posts: 3,569
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From: deland,florida
I agree
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HDF Community Team
Joined: Jun 2006
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From: san antonio
If your bike has O2 sensor, your ECM can adjust fuel +-25%, at least it is automotive ECM adjustment range. Some ECMs can do +-35%. am a car mechanic, I think bikes with O2 sensors don't need any dino tuning. Scanner will show average fuel trim(fuel delivery adjustment) +10%, if you increase engine volume by 10%
