Catless Downpipe for B58 Engine (Toyota Supra & BMW Models)

Unlock serious performance gains from your B58 engine with our premium catless downpipe — now with an integrated heat shield included as standard. Designed for maximum exhaust flow, reduced turbo lag, and a deeper, more aggressive tone, this is the ultimate bolt-on upgrade for Supra and BMW enthusiasts.

Key Features:

Integrated heat shield for reduced engine bay temps

CNC-machined stainless steel flanges

Mandrel-bent 304 stainless steel tubing

TIG-welded for strength and durability

Direct bolt-on fitment with OEM and aftermarket exhausts

Increased horsepower and faster turbo spool

Designed for off-road/motorsport use only

FITMENT NOTES:

Vehicle Compatibility:

Toyota GR Supra (A90/A91) 3.0L

BMW M140i / M240i (F20/F22)

BMW 340i / 440i (F30/F32)

BMW Z4 M40i (G29)

BMW 540i (G30)

BMW X3 M40i / X4 M40i (G01/G02)
(Compatible with B58 Gen 1 & Gen 2 engines — confirm before ordering)

Note:
This product is intended for off-road or motorsport use only and will trigger a check engine light (CEL) without supporting software or a CEL delete solution. Pair it with a FEMTO ECU unlock and a OTS tune from either MHD or BootMod3 to see better results.