Race Downpipes — Catless, 200-Cell & 400-Cell GESI | Mercedes-AMG · BMW M · McLaren · Ferrari · Maserati | YPG Motorsport
Race Downpipes — Catless, 200-Cell & 400-Cell GESI
Aftermarket downpipes are the single highest-impact bolt-on modification for turbocharged performance cars. On engines like the Mercedes-AMG M177, BMW S58 and S55, McLaren M838T/M840T, and Ferrari F154, the factory catalytic converters sit directly downstream of the turbochargers — creating a massive restriction at the point where exhaust gas velocity is highest. Replacing them with race downpipes reduces backpressure, improves turbo spool response, and unlocks significant midrange torque and top-end power when paired with an ECU recalibration.
YPG Motorsport stocks catless, 200-cell, and 400-cell GESI high-flow downpipes for Mercedes-AMG (C63 W205, E63 W213, E63 W212, AMG GT/GTS/GTR, GLC63, G63, GLE63, GT63), BMW M (M2 G87, M3 G80/F80, M4 G82/F82, M5 F90), McLaren (720S, 570S, 650S), Ferrari (488, F8 Tributo), and Maserati platforms. All pipes are manufactured from 304 low-carbon stainless steel, TIG welded, with CNC-machined flanges for precision fitment.
Catless vs 200-Cell vs 400-Cell: Catless pipes deliver maximum flow and the most aggressive exhaust note — ideal for dedicated track and drag builds. 200-cell GESI catalytic converters offer a balance of flow and emissions compliance with minimal restriction. 400-cell cats provide the quietest option while still improving over factory backpressure.
Every downpipe purchase pairs with our in-house Stage 2 ECU calibration — developed on our own builds — so the hardware and software are optimized together. No compatibility questions, no guesswork. Free worldwide shipping via FedEx International Priority.
