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BMW

Genuine BMW Turbo V-Band Exhaust Clamp Turbo to Downpipe N54 N55 N63 S63 S55 OEM 11657620508 Fits 1M, M2, M3, M4, 135i, 335i, 435i, 535i, 550i, X5 35i, Z4 35is

Genuine BMW Turbo V-Band Exhaust Clamp Turbo to Downpipe N54 N55 N63 S63 S55 OEM 11657620508 Fits 1M, M2, M3, M4, 135i, 335i, 435i, 535i, 550i, X5 35i, Z4 35is

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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

OEM BMW Turbocharger Outlet Band Clamp - Part Number 11657620508

Factory BMW band clamp for the turbine outlet to front pipe connection on a wide range of turbocharged BMW engines, including N54, N55, N63, S63 and S55 applications. This is the correct OE hardware that secures the turbocharger outlet to the downpipe for a precise, leak-free seal on high performance models such as 1M, M2, M3, M4, 135i, 335i, 435i, 535i, 550i, X5 35i and Z4 35is.

If you are chasing boost leaks, exhaust blows at the turbo outlet, or fitting new downpipes or turbo units, this original BMW band clamp delivers the proper clamping force and profile for a reliable seal. We have installed this exact part in-house and our customers consistently report perfect fitment, strong fastening and long-term reliability.

Why choose this OE clamp

  • Genuine BMW component for exact fit and correct alignment on the turbo outlet to front pipe joint
  • Even clamping pressure with T-bolt fastener to maintain boost and prevent exhaust gas leaks
  • Built to handle high heat and vibration in demanding turbo applications
  • Ideal when upgrading or replacing downpipes, resolving rattles, or renewing tired hardware

Fitment highlights

Common engine and model coverage includes, but is not limited to:

  • 1 Series: E82/E88 135i, E82 1M Coupe, F20/F21 M135i
  • 2 Series: F87 M2 Competition
  • 3 Series: E90/E92/E93 335i/335xi/335is, F30/F31 335i/335ix, F80 M3
  • 4 Series: F32/F33/F36 435i/435ix, F82/F83 M4
  • 5 Series: E60/E61 535i, F10/F11 535i and 550i
  • 6 Series: F06/F12/F13 640i and 650i
  • 7 Series: Selected 740i and 750i with N54, N55 or N63
  • 8 Series: Selected N63 variants
  • X Series: X1 35i, X3 35i/M40i, X4 35i/M40i, X5 35i/50i, X6 35i/50i and selected S63 X5 M/X6 M
  • Z4: E89 Z4 35i and 35is

Installation notes

  • Sold individually. Order the correct quantity for the number of turbo outlets on your vehicle.
  • We recommend installing a new gasket at the same time to ensure a perfect seal.
  • Direct OE replacement for many N54, N55, N63, S63 and S55 applications.

Professional fitting

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk.

Compatibility check

We will verify fitment before dispatch. UK customers can provide the registration. Worldwide customers can supply the last 7 digits of the VIN at checkout so we can confirm this part suits your vehicle.

Part details

Part number: 11657620508

Manufacturer: BMW

Warranty

Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a valid VIN is provided during checkout on compatible vehicles.

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