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Shouldn't need to, however adding discs will lean the tune you have now. Keep an eye out for decel popping or a major drop in "low end" torque.

Your suggestion has been passed on to R & D and the Sales Departments.

Try adding a couple discs at a time to provide more "top end" flow.
Or go with the "open" end-cap keeping in mind it flows equivalent of 10-12 discs.

1;
P/N 828-71580, 2:1 ST SYST, HD FLH/FLT '10-15, CHRM (12MM bungs)

P/N 828-71578, 2:1 ST SYST, HD FLH/FLT '09, CHRM (18MM bungs)
2;
NO
3; You are correct.

4" disc screws are 10-24 threads.

if loosening the T-Bolt clamp at the headpipe collector and muffler inlet and removing the bolts attaching the bracket doesn't do it, you will most likely need to remove the whole system from the...

I would try swapping the clamps from side to side and see if the issue repeats itself on the other side. If that doesn't resolve the issue try swapping muffler bodies. The swaps should point to the...

Sounds like you needed the extra flow of the open end cap. Stainless steel turns a gold color when exposed to heat. Gap between discs should be .023".

All chrome begins to discolor between 800-900 degrees Fahrenheit. Running HOT is usually associated with a lean running condition, however an overly rich condition can cause an incomplete fuel burn...

The Performance of the OEM pipe falls in between the "True Duals" and a true 2:1 "Performance pipe" which will likely be noticed more with riding two up. Regaining bottom end torque via the reduction...

If you prefer more sound you could utilize 10-12 discs + an "open" end-cap.

When you say the "internal baffle removed", does that mean when the discs are off the unit you can run a broom handle all the way to the inlet (header collector)? If so, yes 20 discs would be a good...

Your symptoms indicate to few discs (not enough exhaust flow)...except for the plug burn.
You could go with an "open" end-cap, which would also provide more sound, or you could pick up a 6 or 12...

The SE's are equipped with NON-serviceable cores out of the factory.

Contact our Customer Service Department during normal business hours (w/P/N) for assistance.

Yes.
Adding discs will provide more exhaust flow.

Excessive exhaust residue is usually an indication you may be running a little rich. You may want to consider adding 2-3 discs for more exhaust flow.

Yes, plus you'll reach a point where (by adding discs and/or removing the disc assembly completely) the catalyst in the headpipe will become the restrictive factor in your exhaust system.

P/N 404-7881, includes;
10 discs
open end-cap
6 pack 2.5" screws
2cc hi-temp lube (anti-seize)
security hex key

Keep in mind the catalyst in the OEM (stock) headpipe soaks up a tremendous...

Tune Kit, P/N 404-7881...can be used; however may be a little overkill on the 750.

What are you trying to accomplish?

Can you provide the HD Screaming Eagle part number?
These should be 4" discs.

Your assessment sounds correct and the 5/8" should work well with the single 6-piston caliper.

That would be a good way to approach it.

3-4 db's on the first question.

Either/or on the second.

If the core assembly and disc assembly w/end cap were installed you could add 3-6 discs during tuning.

Just don't get caught up in...

The open end cap is equal to 10-12 discs vs. the closed.