Road King 117 Exhaust Comparisons
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Joined: Feb 2011
Posts: 75
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From: Wolcott, CT
Road King 117 Exhaust Comparisons
1st Sheet and initial setup is V&H Power Duals with Rinehart 3.5 slip-ons
2nd Sheet is V&H True Duals with Rinehart 3.5 slip-ons and Thunder City Baffles and Baker DD7 7spd Tranny
3rd Sheet and Current setup is Thunderheader X-Series 2 into 1 and Baker DD7 7spd Tranny
Power Dual setup lacked torque off idle and was especially noticeable on a hill from standing start with the stock 6spd tranny.
True Dual setup lacked the Dyno numbers but ended up being a boat load of fun with plenty of torque off idle and where I ride the bike most of the time. I feel the Thunder City Baffles really restricted exhaust flow but totally changed the HP / TQ profile to match that of a stock bike but with more of everything everywhere.
The Thunderheader X-Series setup pulls every where and feels great off idle. I lost 4hp to the Power Dual setup, but that loss is above 5000 rpm. Who cares! I wonder if these Thunderheaders settle in a little after some miles. My ears are still ringing!!!
TMan Complete Bottom End Service, TMan 662-1 Cam, TMan Stage 3 Heads, TMan 3 Stage Oil Pump, Roller Rockers , Night Prowler Directional Roller Lifters, Screamin Eagle Ventilator Air Cleaner, HPI Inc 55mm Throttle Body, 11:1 Compression, Revolution Performance Nicasil 117 cylinders, Jagg Fan Assist Oil Cooler, Baker +1.5 Oil Pan, Vance and Hines Throttle Pack, Mastertune TTS, Baker DD7 7spd Tranny, Bandit Sportsman Clutch
2nd Sheet is V&H True Duals with Rinehart 3.5 slip-ons and Thunder City Baffles and Baker DD7 7spd Tranny
3rd Sheet and Current setup is Thunderheader X-Series 2 into 1 and Baker DD7 7spd Tranny
Power Dual setup lacked torque off idle and was especially noticeable on a hill from standing start with the stock 6spd tranny.
True Dual setup lacked the Dyno numbers but ended up being a boat load of fun with plenty of torque off idle and where I ride the bike most of the time. I feel the Thunder City Baffles really restricted exhaust flow but totally changed the HP / TQ profile to match that of a stock bike but with more of everything everywhere.
The Thunderheader X-Series setup pulls every where and feels great off idle. I lost 4hp to the Power Dual setup, but that loss is above 5000 rpm. Who cares! I wonder if these Thunderheaders settle in a little after some miles. My ears are still ringing!!!
TMan Complete Bottom End Service, TMan 662-1 Cam, TMan Stage 3 Heads, TMan 3 Stage Oil Pump, Roller Rockers , Night Prowler Directional Roller Lifters, Screamin Eagle Ventilator Air Cleaner, HPI Inc 55mm Throttle Body, 11:1 Compression, Revolution Performance Nicasil 117 cylinders, Jagg Fan Assist Oil Cooler, Baker +1.5 Oil Pan, Vance and Hines Throttle Pack, Mastertune TTS, Baker DD7 7spd Tranny, Bandit Sportsman Clutch
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Joined: Jun 2008
Posts: 2,132
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From: NorCal
Once that thing is dynoed, the X-series is broken in. it won't get any louder, and won't get any more quiet. The fiberglass in a Thunderheader blows out in short order. But it's a good thing, they don't sound "right" when new.
It's basically a large diameter primary setup with the V-rod collector. Super loud, but sounds good, especially with big cubes and compression.
It's basically a large diameter primary setup with the V-rod collector. Super loud, but sounds good, especially with big cubes and compression.
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