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IMCO- Exhaust Mufflers
STAINLESS STEEL PERFORMANCE EXHAUST MUFFLERS
These mufflers are designed for our stainless steel exhaust tips. They can also be used in other manufacturer's tips and headers. Available in 3 1/2" and 4". Actual O.D. diameter is smaller.

Butterfly Muffler
These butterfly mufflers are welded internally. They are 11" long with 2 groups of butterflies. 4" only.
68.
PART #
DESCRIPTION
PRICE
M-68 - $58

Mini Muffler
This muffler is used in our short tips with a singlebutterfly.
69.
PART #
DESCRIPTION
PRICE
M-6935
M-69
3 1/2" Mini Muffler
4" Mini Muffler
$35
$
35

High Performance Stainless Steel Packing Muffler
This high performance muffler features a large stainless steel louvered design that is packed with stainless steel wool packing material. These cores are designed for maximum performance.
70.
PART #
DESCRIPTION
PRICE
PM-7135
PM-714
PMS-714
3 1/2" Dia. x 9 1/2" long
4" Dia. x 9 1/2" long
4" Dia. x 16" long (with built-in muffler)
$84
$
84
$
162

High Performance Exhaust Tip with built-in Muffler
This is our most popular tip. It is angle cut on the end and is available as listed. Tips are 10 1/2" long.
71. - 71a.
PART #
DESCRIPTION
PRICE
HPET-71
HPET-71F
HPCO-71A
HPCO-71B
HPCO-71C
4" High Perf Tip with muffler (pair)
4" High Perf Tip with muffler & flaps (pair)
4" Clamp-onTip with muffler (pair)
4 1/2" Clamp-onTip with muffler (pair)
5" Clamp-onTip with muffler (pair)
$566
$
599
$
576
$
576
$
576

MEGA-704
A true performance through transom stainless steel exhaust tip with built-in muffler that silences high output production engines (350,454,502 c.i.) without sacrificing power. Our internal silencing chambers plus integral flapper (eliminates engine backwash problems) significantly reduce the decibel level through out the entire RPM range. Easy bolt-on replacement for stock thru-transom tips. (sold in pairs only)
MEGA-704
PART #
DESCRIPTION
PRICE
MEGA-704 4" Dual Stage Muffler/Flaps $789