M140i / B58 Downpipe Install - M240i 340i Supra

We're showing you how to install a downpipe (Sports cat or decat) onto the B58 engine in our M140i. This guide works for any B58 engine car like the M240i, 340i or even the new Supra.
Website: mentallywasted.co.uk
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[@lukasg6183]

With this Video im confident enough to try to install it myself.

[@Oscarrsaa]

This is the greatest tutorial ever bro gonna be installing mine this weekend.

[@lukasg6183]

Hey Bro i just installed the Downpipe! Thanks again for the Video. My clamp was so hard to losen i had to hammer it a few times 😁 and also the connectors had an intended breaking point out of plastic. After that it was easy to slide them off the bracket.

[@MentallyWastedBrand]

I’m glad you were able to get it done! Enjoy the car now!

[@lukasg6183]

@@MentallyWastedBrand Thank you, the car sounds so much better!

[@drummerlewis87]

Just found out I have a spunky sports cat on mine after an MOT. So finding this vid is perfect timing. New decat incoming.

[@oliver3699]

Great tutorial mate, put mine in tonight - new 5’ osprey sports cat - I had to pull the exhaust back and off to get the cat into the mid pipe tho 😂

[@jasonwan163]

Was just looking at that one online. Did any check engine lights show up after the install by any chance?

[@oliver3699]

@@jasonwan163 no check engine light, although I did reflash the car with MHD straight after

[@esketitwareplays3331]

really well made video :D

[@CrouchTV]

🔥🔥🔥

[@rakimashraf7280]

Resonators still in?

[@Total_Reflex]

Is the car noticeably louder using a sports cat over a standard cat?

[@coenwag]

What make downpipe is that? Sports car with heatshield