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Quiet Muffler
Unit above shown without resonator.
Model 5S Super Trapp Quiet Muffler


The Model 5S is designed for engines from 10 to 200 HP. Recommended for engines from 10 HP to 100HP where minimum exhaust noise is required (Resonator required for noise reduction) and for larger engines where space is limited. Supplements an existing muffler where minimum noise is critical. Use 1 disc per 7 HP. Discs are sold in package of 3. USDA Forest Approved spark arrestor No. T-101.

Follow directions below to Order

  • First decide if you will need Clamp-On or Threaded adapter for your particular engine.
  • Then go to the section below for either Threaded or Clamp-On.
  • After you have decided which adapter will fit your engine, you will need to order the correct number of Diffuser Discs. Use 1 disc per 7 HP. These discs control the back pressure on your engine.
  • Order the 3 0r 12 pack of discs below.
  • Next, order the optional resonator. The Resonator is required for noise reduction.
Sold as components only. Order discs as required. A Model 5S comes as Base, Cap and Center Bolt. If you are installing on a 10 HP engine order 1 Model 5S and 1 3-Packs of diffuser discs. This will give you a total of 3 discs (use 1 per 7 HP, on a 10 HP use 1 discs).
ADAPTER THREADED
COMPLETE UNITS SIZE ORDER
Includes: Base, Cap and
Center Bolt

National Pipe Thread Male:

Measure diameter of hole.
If hole is 1" than you need 3/4" NPT.
If hole measures 1 1/4" than you need 1" NPT.

1" NPT
Part# 5S1000T

Our Price: $59.95
Qty:
1 1/4" NPT
Part# 5S1250T

Our Price: $60.95
Qty:
1 1/2" NPT
Part# 5s1500T

Our Price: $59.95
Qty:
2" NPT
Part# 5S2000T

Our Price: $59.95
Qty:
ADAPTER CLAMP-ON (fits over pipe O.D.)
COMPLETE UNITS SIZE ORDER
Includes: Base, Cap and
Center Bolt

Hose Type Clamp-On

1.250"
Part# 5s1250H

Our Price: $60.95
Qty:
1.312"
Part# 5S1312H

Our Price: $59.95
Qty:
1 3/8"
Part# 5S1375H

Our Price: $59.95
Qty:
1 1/2"
Part# 5S1500H

Our Price: $59.95
Qty:
1 5/8"
Part# 5S1625H

Our Price: $59.95
Qty:
1.660"
Part# 5S1660H

Our Price: $59.95
Qty:
1 3/4"
Part# 5S1750H

Our Price: $59.95
Qty:
1 7/8"
Part# 5S1875H

Our Price: $59.95
Qty:
2"
Part# 5S2000U

Our Price: $65.95
Qty:
2 1/4"
Part# 5S2250U

Our Price: $65.95
Qty:
2 1/2"
Part# 5S2500U

Our Price: $65.95
Qty:
2 3/4"
Part# 5S2750U

Our Price: $65.95
Qty:
3"
Part# 5S3000U

Our Price: $65.95
Qty:
DIFFUSER DISCS (1 PER 7 HP)
Diffuser Discs 3-Pack
Part# 5S6503

Our Price: $19.95
Qty:
12-Pack
Part# 5S6512

Our Price: $59.99
Qty:
RESONATOR (REQUIRED FOR NOISE REDUCTION)
Resonator Resonator
Part# 5S5500

Our Price: $59.95
Qty:
4" Tri-Tube Resonator
Part# 5S5534

Our Price: $79.95
Qty:
6" Tri-Tube Resonator
Part# 5S5536

Our Price: $79.95
Qty: