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S&S Cycle Grand National Exhaust

1,001 views · Published 19 December 2018 · 0:57 · Indexed 7 October 2026

Channel: Dennis Kirk, Inc. · 2018 · Autos & Vehicles

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Overview of S&S Cycle Black/Black Grand National 2-Into-2 Exhaust System - 550-0742

    Free-flow design equals solid hp gains
    Hidden crossover provides performance benefits of a 2-into-1 system
    Full heat shields on both front and rear header pipes
    Stainless steel header construction
    Race inspired Grand National end caps
    Available in chrome or black ceramic finish
    Oxygen sensor ports allow use of wide band or stock O2 sensors
    Removable dB reducers included
    Made in the U.S.A.

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.


Included Items:

(1) Chrome steel 2 into 2 header pipe 

(1) Black steel rear upper heat shield

(1) Black steel front head shield

(1) Black steel rear lower heat shield

(2) Black steel muffler assemblies W/black aluminum end caps

(7) #20 Hose clamps

(1) Black steel mounting bracket

(1) Black steel top mounting bracket

(1) Black steel bottom mounting bracket

(2) Band clamps

(1) Black spacer

(2) 3/8" Exhaust gaskets

(2) 1-3/4" Exhaust gaskets

(3) 5/16"-18 x 1-7/16" Socket cap head bolts

(1) 5/16"-18 x 2" Socket cap head bolt

(4) 5/16"-18 x 5/8" Button head bolts

(2) 5/16"-18 x 7/8" Button head bolts

(3) 5/16"-18 Nut plates

(4) 5/16"-18 Serrated flange hex nuts

(2) 12mm to 18mm O2 Adapters

(1) 0.017 fl. oz/ Loctite 243

Instructions

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