Osprey Performance BMW B58 Decat/Catless Downpipe (Cat Delete) with OEM-Style Heat Shield - Stainless

Cat-Delete Front Pipe for B58 with Factory-Look Thermal Shielding

Transform the way your B58-powered BMW breathes with the Osprey Performance stainless steel cat delete front section. Designed as a true plug-and-play replacement for the factory primary catalyst, it frees up exhaust flow, cuts back pressure and lets the turbocharger come on boost sooner for a sharper, more responsive drive and a harder-hitting soundtrack. The integrated factory-style thermal shield keeps bay temperatures in check and maintains a clean, OE-style appearance.

We install these regularly at MJ Modifications and the results speak for themselves. Fitment is straightforward, the construction quality is consistently high and the improvement in spool and throttle response is instantly noticeable. Customers love the more aggressive tone and the added urgency across the rev range.

Key reasons to choose this upgrade

• Stainless steel race front pipe for maximum gas velocity and reduced restriction
• Faster turbo spool and improved pedal response for a more engaging drive
• Direct replacement for the factory section with no cutting or welding required
• Factory-look thermal shielding for tidy installation and effective heat management
• Durable build to handle tuned B58 setups and repeated heat cycles

Compatibility

Engine: BMW B58 inline-six

• BMW 1 Series M140i
• BMW 2 Series M240i
• BMW 3 Series 340i
• BMW 4 Series 440i

Chassis variants commonly associated with these models include F20 F21 F22 F23 F30 F31 F32 F33 F36.

Built for tuning

Ideal as a foundation mod ahead of a remap, intake and intercooler upgrades. The increased flow complements software calibration to unlock the full potential of the B58 while delivering the turbo whistle and exhaust note enthusiasts want.

Installation and support

Professional fitting is recommended. MJ Modifications in Warwickshire offers installation and setup. For a fitting quote or to book your car in, email info@mjmodifications.co.uk.

Important information

This product removes the primary catalytic converter and is intended for off-road or track use where permitted. Please check local regulations before purchase and installation.

Popular search terms

B58 de cat, B58 cat delete pipe, BMW turbo down pipe, BMW front pipe B58, race down pipe B58, Osprey Performance DP, B58 track pipe, BMW 340i 440i 240i 140i de cat, BMW 1 Series 2 Series 3 Series 4 Series down pipe, stainless de cat pipe, heat shielded down pipe, B58 exhaust upgrade, B58 turbo outlet pipe, catless front section, BMW inline six performance exhaust, B58 tuning parts UK.