True duals or X-pipes?
Road Warrior
Joined: Apr 2010
Posts: 1,255
Likes: 1
From: Superior, WI
Edit...Oops, you said Twin Slash MONSTER Ovals. I had the regular Twin Slash Ovals. Not as quiet as the Monster variety.
Ultimate HDF Member
Joined: Aug 2008
Posts: 5,413
Likes: 17
From: eastern oklahoma
if you're not opposed to 2 into 1's i highly suggest the standard vance & hines pro pipe. the 2 into 1 exhaust systems develop more torque than any other design throughout the rev range. i wouldn't go back to twice pipes now that i have the 2 into 1. the 2 into 1 vance and hines high flow don't work as well on a 96 or 103 because the high flow reduces the velocity of the exhaust pulses thereby reducing the torque. the hf pro pipe is for much bigger motors that can take advantage of the increased flow. it comes down to bernoullis principle where a larger diameter pipe will flow more, but at slower a slower speed, and our motors depend on port velocity.
i dont see how one would really feel the differance of the TD's vs the PD's.. yes they sound slighly different with same type of slip ons.. but i think the sound is what makes u think ure going faster... the X pipe is known to give slightly higher TQ and HP vs TD's.. same for automotive... as for looks.. i like the Power Duals.. not many seen here...
ride safe...
ride safe...
Road Master
Joined: Dec 2008
Posts: 803
Likes: 0
From: Northern, NJ
Road Warrior
Joined: Apr 2007
Posts: 1,406
Likes: 5
From: Sunnyvale, Ca.
What Turner you go with ?
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Hey trackadaptor I originally ran the Power Duals with the Slip-On's without any aftermarket air cleaner or tuner. I was getting some pretty bad vibrations at idle and even while cruising.
I had purchased the Arlen Ness Big Sucker stage 1 Air Cleaner although I had not gotten around to installing it. I installed it this past weekend and immediately took it down to the dealer for the H-D Stage 1 download.
Man did this make everything so much better! The bike vibrates far less at idle (never eliminated, these are touring bikes afterall) and it's almost smooth as glass while cruising down the road.
So that was a LONNNNNNNG answer to your question! I didn't do any sort of tuner only the H-D "approved" Stage 1 download. This is far enough for me.
If I ever feel the need to spend another thousand I will do some cams, SE Race Tuner and have it Dyno Tuned. I seriously considered doing a PC-V although I don't want to risk any potential warranty issues being blamed back on it.
I had purchased the Arlen Ness Big Sucker stage 1 Air Cleaner although I had not gotten around to installing it. I installed it this past weekend and immediately took it down to the dealer for the H-D Stage 1 download.
Man did this make everything so much better! The bike vibrates far less at idle (never eliminated, these are touring bikes afterall) and it's almost smooth as glass while cruising down the road.
So that was a LONNNNNNNG answer to your question! I didn't do any sort of tuner only the H-D "approved" Stage 1 download. This is far enough for me.
If I ever feel the need to spend another thousand I will do some cams, SE Race Tuner and have it Dyno Tuned. I seriously considered doing a PC-V although I don't want to risk any potential warranty issues being blamed back on it.