Join Date: Feb 2018
Location: Ontario, Canada
Any of the guys running Big City Thunder Baffles in a set of V&H Big Shots?
...or even your own "home built" versions of them?
I decided I was sick and tired of the sound of the stock baffles that came in my Vance & Hines pipes, and it seemed the Big City Thunder baffles were all everyone talked about during my search. I've seen many responses from those who bought them saying they couldn't believe they just dropped $90+ on a set, when they could have made them for under $10.
Well, being both equal parts ingenuitive and cheap, I decided to take a stab at building my own, based on modified version of the stock V&H baffles.
Basically, I cut approximately 6-7" out of the centre of the baffles and welded them back together. This left about three rows of the louvred section remaining in the baffled. I then fitted the front end of the baffle (the end nearest the engine) with a small lollipop I made from a washer and bolt end. Don't recall the size I used off hand, but it visually looked identical in size to the one found on the Monster Baffles in the pics I googled.
Now, here's where the confusion sets in. I'm getting mixed opinions on how these should be installed. Some state that they bolt them directly in place of the stock baffle. Some have said they should be at least 6" into the exhaust, from the end of the pipe. Some say they should go in lolly pop to the front (closest to the engine), some say it should be at the back (closest to the exhaust top). Some have even said to install them as far up into the pipe as you were able and that they farther they went in, the deeper the tone got?
Well, I decided to take the last bit of advice and install them lolly pop to the front, as far into the pipe as I could stuff them. The lolly end itself is now about an inch from the bend in the lower pipe and the upper pipe is installed approximately the same distance. Both are now probably about 14" or so into the exhaust. The moment of truth arrived. I fired up the engine, expecting a completely different bike and.....to be honest....not hearing a whole lot of change in the exhaust note. At least not sitting in the garage, revving and letting it idle, anyway.
So...finally, my question is. Is there an "optimum" placement and configuration for this set up? I was getting tired tonight, so I decided to pack it in. I'll probably have at it again on Wednesday and experiment with the placement of the baffle. Luckily, I didn't drill any new holes in the exhaust pipes and it simply requires me to start pulling the baffle out, to tune it. I'm half wondering it leaving some of the louvres in place, instead of simply chopping the middle section out altogether and installing a reducer in its place may be partially responsible for the lacklustre results, but I really cant be certain.
What are your thoughts?
"Everyone has a plan, until they get punched in the face!"