Mercedes SLS AMG GT (2011-2014) – RENNtech Performance Package – Stage 2





RENNtech’s SLS performance package stage 2 features their proprietary ECU tuning software and long tube manifolds as found in stage 1 with the addition of their sound and performance x-pipe exhaust. This combination unleashs the beast lurking underneath the refined exterior of your SLS.

RENNtech’s long tube manifolds are designed and manufactured in house and feature high quality, tri-metal, 200 cell sport catalytic cells which are ceramic coated to reduce heat in the engine compartment as well as combat against thermal stress. Their sound and performance x-pipe is constructed of high quality stainless steel with power proven x-pipe crossover design allowing for free flowing exhaust with less backpressure and greater performance.


Stage 2 Package includes:

  • RENNtech ECU upgrade
  • RENNtech Long Tube Manifolds w/ 200 cell sport cats
  • RENNtech Sound & Performance X-Pipe



SLS (C197) Stock Performance:

  • 563 HP @ 6800 RPM; 479 LB-FT @ 4750 RPM


Modified Performance:

  • 620 HP @ 6800 RPM; 522 LB-FT @ 5200 RPM



*NOTE – We would need either the ECU or the vehicle bringing to our premises in Cheshire

Due to some of the products coming direct from RENNtech USA please allow 7-10 days for delivery

Prices may vary in accordance to the current exchange rate, please contact us for the current confirmed price

Our refunds policy can be found here