Fabspeed McLaren 650S Sport Catalytic Converters Exhausts Big Old Backfires and explosions

Big Old Backfires and explosions in a GT3 are common too and hurt muffler cases

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Includes 4 Gaskets total (2 Header Manifold Gaskets and 2 Exhaust Manifold Gaskets)

68 ft/lbs +73

Stock = 400 WHP / 369 TQ

Fabspeed McLaren 650S Sport Catalytic Converters Exhausts Big Old Backfires and explosionsFabspeed Motorsport USA was the world's very first company to design, engineer, and dyno develop McLaren systems. We replace the four restrictive factory OEM catalytic converters with two ultra high performance HJS German Racing 200 cell sport cats for maximum performance and sound, and no check engine light guaranteed. Utilizing our two development McLarens, MP4 12C and a 570S, we've experimented with many designs and were able (after copious testing