Mercedes SLS AMG (2011-2014) – RENNtech Performance Package – Stage 1





RENNtech’s SLS performance package stage 1 features their proprietary ECU tuning software combined with their long tube manifolds, unbelivable sound with performace to match.

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.

The long primary tube manifolds generate incredible low end torque for quicker acceleration off the line and improved exhaust gas flow with reduced backpressure. This coupled with their ECU tuning software ensures the bite of your SLS is as wicked as the bark of the exhaust note.


Stage 1 Package includes:

  • RENNtech ECU upgrade
  • RENNtech Long Tube Manifolds w/ 200 cell sport cats



SLS (C197) Stock Performance:


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




Modified Performance:


  • 604 HP @ 6800 RPM; 515 LB-FT @ 4750 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