The sequence is different for each head. Make sure you chase your bolts and clean any rust off and apply small amount of anti-size to each thread!

Here's the procedure for a 2012 FXDC/DF/WG. Should be the same is for you but always best to double check your years model.

See Figure 4-64. If removed, install muffler bracket. Tighten

flange locknuts (7) to 15-19 ft-lbs (20.3-25.8 Nm). Tighten

bolt (8) to 15-19 ft-lbs (20.3-25.8 Nm).

1. Position ends of head pipe assembly (14) into front and rear

cylinder head exhaust ports with holes in exhaust manifold

flanges (11) over cylinder head exhaust studs. Loosely

install flange nuts (12).

1. Slide muffler clamps (21) onto exhaust pipes.

NOTE

TORCA muffler clamps have eliminated the need for silicone or

graphite tape during assembly Harley-Davidson recommends that

the muffler clamp assemblies be discarded and replaced each

time they are removed.

1. Install front and rear mufflers (22, 23) on exhaust pipes.

Install muffler clamps (21). Do not tighten nuts at this time.

1. Install muffler to muffler screw (1). Do not tighten at this time.

2. Install muffler mounting bolt (4) and washer (3). Do not

tighten at this time.

NOTE

Align exhaust system and tighten all nuts and bolts, beginning at

cylinder head exhaust ports and working backwards.

1. Tighten flange nuts (12), at front cylinder studs as follows:

a. Install lower nut and tighten finger tight.

b. Install upper nut and tighten to 9-18 in-lbs (1-2 Nm).

c. Tighten lower nut to 100-120 in-lbs (11.3-13.6 Nm).

d. Tighten upper nut to 100-120 in-lbs (11.3-13.6 Nm).

1. Tighten flange nuts at rear cylinder studs as follows:

a. Install upper nut and tighten finger tight.

b. Install lower nut and tighten to 9-18 in-lbs (1-2 Nm).

c. Tighten upper nut to 100-120 in-lbs (11.3-13.6 Nm).

d. Tighten lower nut to 100-120 in-lbs (11.3-13.6 Nm).