SPELAB Downpipe Exhaust For BMW E90 E91 E92 E60 E61 Diesel M57 Turbo
---tab Description--- This Catless (eliminates OE catalytic converter for maximum exhaust flow) M57 downpipe replaces the restrictive factory downpipes and removes the catalytic converter for maximum…
TL;DR: ---tab Description--- This Catless (eliminates OE catalytic converter for maximum exhaust flow) M57 downpipe replaces the restrictive factory downpipes and removes the catalytic converter for maximum flow. Engineered for BMW, it’s a direct bolt-on upgrade that delivers lower EGTs, sharper turbo resp…
