Transform the rear of your BMW 1 Series hot hatch with premium end-pipe finishers designed to look factory fresh and built to last. Crafted by Cobra Sport, these straight-cut 88.9 mm outlet trims deliver a bolder rear aesthetic with a subtle motorsport vibe while keeping that clean OEM appearance owners love.
Engineered as a direct swap for the stock tip finishers on the F20 and F21 M135i with the 3.0 N55 engine, they slide straight onto the original locator pins. No cutting, no welding, no coding. Just push on, align and you are done. They replace BMW part number 18307610633.
Why owners choose these tip finishers
Bigger 3.5 inch outlets for a stronger, wider stance at the rear, around 15 percent larger than standard
Choice of finishes: polished stainless steel for a classic shine or stealthy ceramic black for a subtle, aggressive look
Corrosion resistant materials to combat the common rusting you see on many factory tail trims
Supplied as a matched pair for left and right sides
Direct fit on O/E pins, designed specifically for the M135i N55
One year warranty for peace of mind
Fitment details
Compatible with BMW M135i F20 and F21 models equipped with the 3.0 N55 engine. Direct replacement for BMW OE part: 18307610633. Straight-cut tip design. 3.5 inch diameter, approx. 88.9 mm. Increase over stock is roughly 0.5 inch or 12.7 mm.
Real-world results from MJ Modifications
We run these tip finishers on customer cars and they are a consistent favourite in our workshop. The visual upgrade is immediate, the fit is spot on and the finish holds up brilliantly in daily use. If you want that OEM-plus look without changing the rear silencer or mid-pipe, this is the perfect styling upgrade.
Installation and fitting
Simple slip-fit onto the original locator pins with no modification required. Prefer a professional install. Book fitting with MJ Modifications in Warwickshire and we will take care of everything. Request a quote at info@mjmodifications.co.uk.
Popular search terms
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Upgrade your M135i with confidence. Choose the finish that suits your build and enjoy the sharper, more purposeful look every time you walk up to the car.
