as far as the tune able baffle. its probably the same one just the tongue isnt cut out. nothing a dremel and cut off wheel cant make. My Jackpot came today. i just got home so ill go check it out later.

 

it has a shorter one with out the flap. nice pipe though.

 

Don’t wanna derail the thread.. just curious, does anyone make a performance based (not just looks) 2 into 2 step tuned set of pipes for the M8 bikes?

 

I don’t know if their stepped or not but the S&S Grand National comes to mind.

 

https://blowexhausts.com/

3 steps. getting dyno tuned this week. will see how they perform.

 

Yep, and that's why I'm asking the question. Experience, not guesswork.

 

Uhg.. probably way too short for performance… if they were 36-40” long I woulda said “I’ll bet comparable to the 2 into 1 offerings. Possible show a little more power up top. However. Take them to the drag strip. I’d bet a 6 pack you’ll gain mph and get a lower ET with them regardless of what a dyno lie says.”

 

I have stock valves unported heads 124ci with only f35a cam and S&S Superstreet 2-1. It makes 140HP 142TQ. I don’t think the pipe is holding it up.

If I went say +2 valves ported heads more cam more displacement then I’d step up the exhaust to something that included larger primaries.

If stock valves I’m not sure you can get enough out of another same size exhaust to justify buying it.

 

Nice job, good parts balance.

 

Thanks Mike. I had the same exact combo in the 114 and it made 135hp 134tq. But after 7k on that combo it got a ring issue and scuffed one side of a head & cylinder. Cheap easy quick fix n upgrade was these slugs n jugs. Same ish compression everything else the same. So the 10 cubes only picked up 5 HP 8 TQ.

And for OP about the S&S Superstreet. Not only did mine make 140HP with stock heads I just seen another make 150 HP with ported big valve heads. Not that it’s the top pipe but I think its proven to be better than expected.


114ci


124ci