CSK Exhaust
CSK Exhaust BMW M235i N55 F22 F23 Back Box Delete / Backbox Delete / Muffler Silencer Delete Kit Axle-Back Rear Section Straight Pipe | 304 Stainless Steel Performance Exhaust | Fits BMW 2 Series M235i | CSK003
CSK Exhaust BMW M235i N55 F22 F23 Back Box Delete / Backbox Delete / Muffler Silencer Delete Kit Axle-Back Rear Section Straight Pipe | 304 Stainless Steel Performance Exhaust | Fits BMW 2 Series M235i | CSK003
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.
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CSK Back Box Removal for BMW M235i N55 F22 F23 - Part Number CSK003
Unleash the soundtrack of your N55-powered 2 Series with the CSK back box removal kit. This axle-back rear section replaces the factory silencer on the M235i to deliver a richer tone, more volume and a sharper, motorsport-inspired character while keeping factory mounting points and tip alignment. Built from premium 304 grade stainless steel with back-purged TIG welds, CSK003 offers a durable, great-value sound upgrade that looks as good as it performs.
- Direct-fit rear section for BMW M235i N55 - F22 coupe and F23 convertible
- 304 stainless construction for long-lasting corrosion resistance
- Back-purged TIG welded joints for strength and clean internal flow
- Uses OEM hanger locations and maintains factory tailpipe position
- Deeper, louder exhaust note that lets the turbocharged N55 come alive
- Precision-made to order with consistent, jig-built accuracy
- Outstanding value sound upgrade for enthusiasts
We have installed this CSK rear section on customer M235i cars and the feedback has been excellent. Owners love the fuller tone, the added aggression under load and the tidy finish of the pipework. It is a simple way to wake up the car without compromising fitment.
Fitment
- BMW 2 Series M235i F22 - N55
- BMW 2 Series M235i F23 - N55
Specifications
- Material: 304 grade stainless steel
- Welding: Back-purged TIG
- Configuration: Axle-back rear section replacing the back box
- Part number: CSK003
- Manufacturer: CSK Exhaust
Warranty
One-year CSK manufacturer warranty.
Installation and Support
Professional fitting is strongly recommended. For installation, choose MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.
Compatibility Check Before Dispatch
To ensure perfect fitment, we run a compatibility check prior to dispatch. Please provide your UK registration number or the last 7 characters of your VIN at checkout.
Make sure the part is installed by a professional. If it does not fit perfectly, remove and return it before starting the vehicle.
Lead Time
All CSK Exhaust items are made to order. Please allow time for manufacturing.
Why Choose CSK003 For Your M235i
- Transforms sound with a deeper growl and greater presence
- High quality stainless and expert fabrication
- Bolt-on rear section tailored to the N55 M235i platform
- Proven on customer cars with consistently positive reviews
Helpful Search Terms
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