Honda CB550 Four CB550K 74-76 Complete Exhaust 4-1 Stainless Straight Muffler



  • Delkevic mufflers are handcrafted from the highest quality materials to enhance your motorcycle in both performance and looks. We guarantee to improve your riding experience at an unbeatable price.

Frequently Asked Questions

  • Does muffler have a DB killer?
    The classic straight does have a removable cartridge baffle.
  • What is the overall length of the Classic Straight Muffler?
    The length of the Classic Straight Muffler is 14 inches long.
  • What is the inside diameter of the Classic Straight Muffler inlet?
    The inside diameter of the Classic Straight Muffler is 2.5 inches.
  • Is there suggestions for carburetor jetting when fitting this exhaust?
    We do not have jetting suggestions when fitting our classic exhaust systems. If fitting to a stock bike, the OEM jetting is recommended.
  • Is the Classic Straight Muffler interchangeable with the Classic Megaphone Muffler, or the Classic Reverse Cone Muffler?
    Yes, the Classic Megaphone Muffler, and the Classic Reverse Cone Muffler are compatible with any application that currently hosts the Classic Straight Muffler.
  • Is there a quiet baffle available that will reduce the decibel level of the Classic Straight Muffler?
    No, we do not have auxiliary baffles for our Classic Muffler options.
  • Is this system compatible with the SOHC CB650?
    No, the angle of the exhaust ports is substantially different.
  • What Models does this product fit
    CB550K FOUR (1974-1976)
SKU: COM320A Categories: , ,



Includes ALL the items in the component parts photo.

  • Fits
    CB550K FOUR (1974-1976)
  • This system contains Delkevic down pipes, Classic style silencer with a removable baffle, clamp, gaskets, brackets, stand stop rubber, spring hooks, nyloc nuts, washers, and cap screws
  • Delkevic stainless steel headers for classic motorcycles are made from high grade Austenitic Stainless Steel, to give extended service way beyond our guarantee period.
  • We manufacture our exhaust products in a purpose-designed factory where we employ stringent quality control procedures to maintain our high standard of production to ensure customer satisfaction.
  • The Café Racer style stainless steel muffler features a removable cartridge baffle. The silencer can produce two different exhaust sounds: a street racer rasp fully assembled or an open pipe bark and performance to match with the cartridge fully removed! Handmade and at just 14in. in length with a primary pipe diameter of almost 2 1/2in. and weighing in at just over 2 lbs, this muffler is true to the minimalist and lightweight features of the period Café Racer. Coupled to the simple symmetry of the Delkevic headers, the smooth lines and minimal features of the muffler represent a true retro statement of racer inspired aesthetics.
  • The weight of the muffler is 2.734 lb
  • All Delkevic silencers have a 12-Month Guarantee.
  • No rejetting or remapping is required after fitment however we always recommend a dyno test after fitting replacement parts to your motorcycle

Additional information

Product Weight 13.049 lb
Silencer Weight 2.734 lb
Silencer Length 14"


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