Yoshimura R&D of America, Inc.

GSX-S1000/GT/S950 / KATANA R-77S OPTIONAL STAINLESS STEEL HEADER

GSX-S1000/GT/S950 / KATANA R-77S OPTIONAL STAINLESS STEEL HEADER - Main image
$599.25 $799 In stock

Category: Race Series Exhaust System

Optional Stainless Steel Header exhaust pipe to make Yoshimura R-77S slip-on a full system.

* Requires Yoshimura R-77S Slip-on (P/N. 1F0-19E-5W**)

CAUTION!!!

  • In combination with Optional Stainless Steel Header, EEC Approval number on the R-77S Slip-on (P/N. 1F0-19E-5W30) will NO LONGER BE VALID.
  • This product is developed for track-day use or for areas where it is not necessary to use a fully legal exhaust.
  • Trimming of under fairings may be necessary for clearance.
  • GSX-S1000GT:

    • Possible to use this product with side pannier.
    • Modification of under fairing might be required. (When clearance between exhaust pipe and fairing is too close.)
    Max Gain: Power +4.6% / 6,700rpm
    Max Gain: Torque +4.6% / 6,700rpm
    Weight Reduction Exhaust Pipe -5.2kg (-54.2%)
    Full System -5.5kg (-46.2%)
    Static Noise Decibel : dB/
    Measured at : rpm
    100dB / 5,500rpm
    (STD 96dB)
    Main Material Stainless Steel

    Note: The above test data is checked with Optional Exhaust Pipe and R-77Slip-On together.

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    When it ships

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    Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

    Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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    Delivery costs

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    Standard Shipping · United States: $0.00

    Express Shipping · United States: $3.99

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    Returning an item

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    United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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    Customer Reviews (4.4 / 5 · 5 reviews)

    Jason A. ★★★★★

    Took about an hour to swap out the stock header on my Katana, and the stainless steel finish matches the slip-on perfectly. The mid-range pull feels noticeably stronger now that it’s a full system, though I did have to re-tighten the springs after the first heat cycle.

    Evelyn Y. ★★★★★

    The fit on my '23 GSX-S1000GT was spot on, and welding quality is impressive for the price. Gives a noticeably deeper tone than just the slip-on alone, really wakes the bike up.

    Carter ★★★★★

    Had been running the R-77S slip-on for months, adding this stainless header turned it into a proper full system — the fit was perfect, no leaks at the joints. Really woke up the mid-range on my GSX-S1000GT without making it obnoxiously loud.