Exhaust question
Advanced
Joined: Apr 2023
Posts: 89
Likes: 81
From: New England
Road Captain
Joined: Jul 2023
Posts: 523
Likes: 406
From: So Western Ohio
Look close, turn up the brightness, you can see the DK TTI.
My bike had some sort of straight thru pipes and was awful loud, to the point it was miserable to ride on the freeway. I took a guess and bought a set of Rush slip ons with their smallest baffles, 1 3/4". They still seemed sharp and raucous on the freeway so I decided to put in DK lollipops, the 1 5/8" since the slip ons are 3". They do mellow it out- enough that for the first time I could hear the valve clatter from the top end. On the highway the wind noise blanks out most of the engine sound. Around town they sound good, if a little soft. They still have the Rush baffles in, DK says to take the baffles out for the deepest tone. I wasn't going for the best tone, just less noise.
I'd say they cut the noise by about 30%. Take it with a grain of salt, though. It's all subjective.
I added this link to a video (potato cam) where you can hear the valve gear while it's idling. It has to be downloaded to play, but it's safe.
Sporty idling
Installed the big TTIs straight across at first. Ran it down to put gas in for winter and it sounded weird. A clattering sound more than the cool thumps I was looking for. Frigid weather set in so I had time to reset the angles of the TTIs. With Rush slip ons they all but filled the pipe with a very small gap around them. They were acting almost like potatoes crammed in there. I angled them about 15 degrees to have a nice gap around one side. Today was a WARM 56 outside. I took it for a test ride and DAMN. They sound gorgeous, just what I wanted. Not real loud, either. In traffic on a 25 mph residential street in 2nd, I barely blipped the gas and the front end almost came up. Had I given it a quick half throttle, it would have. I've been jealous of the sound other Sporties make, but not any more.
If you have 3" mufflers, pull the baffles, mount the 2 5/8 TTIs and make sure the exhaust can escape. You won't be shopping for exhausts any more. WE have arrived, boys. Thanks go out to DK products. A very cool company.
EDIT: I don't have a decent camera but Mr Robb did. Here's his 2013 72 with gutted SE slipons (3") with 2 5/8 TTIs.
Give it a listen as he splits lanes across town. He passed away (RIP) but he got my attention with that red 72. His bike sounds like mine, now.
Last edited by Rufus13; Feb 7, 2024 at 04:00 PM. Reason: added video
Thread
Thread Starter
Forum
Replies
Last Post
