M177 C63 and GLC63 High Flow Intake System

Modal Works
In stock

+45whp on performance tuned vehicles, 15-20whp on stock vehicles

+1.5mph improved 1/4 mile trap on tuned vehicles

0.4s to 0.6s reduction in 60mph-130mph on tuned vehicles


We have done extensive analysis and testing on this intake system. CFD models of the air intake were performed to optimize flow paths. Our results show that with properly designed heat shields, the concerns of a “hot air intake” are mitigated. Our design uses 3 layers of protection to reduce warm air that would normally enter the intake with an unsealed heat shield. These heat shields are constructed from stainless steel, finished with powder coated, then covered with a heat barrier made up of woven silica with an aluminized finish. The shields then have a gasket added that seals against the hood that reduces hot air transfer from the engine bay to the intake. Side by side comparisons of stock vs ModalWorks intake show negligible differences of air intake temperatures pre-turbo, which result in big performance gains due to massive improvements in airflow.

Dyno Results:
Back to back dyno runs were performed swapping the stock intake (with aftermarket high flow filters) and the ModalWorks intake systems. The ModalWorks intake showed peak gains of 57whp and 45wtrq higher than OEM. Comparing the absolute max power generates for each, the ModalWorks design gained 25whp at 5500RPM.

1/4 mile and 60-130mph:
Dyno numbers are one thing but putting that power to the road is where it really matters. 60-130mph and 1/4 mile tests were conducted back to back. In order to reduce the number of variables, all runs were done in S+ mode, sport traction, with all shifting left to the vehicle. All tests were done on the same stretch of road, same day with the same weather. Comparing the best runs for each intake, we obtained a 0.42s quicker 60-130mph, reduced 1/4 mile times by 0.14s, and improved trap speeds by 1.5mph, all from just an intake.

Vehicle Applications:

  • 2015-2020 C63 AMG , BASE (W205)
  • 2015-2020 C63 AMG , COUPE (C205)
  • 2015-2020 C63 AMG S, BASE (W205)
  • 2015-2020 C63 AMG S, COUPE (C205)
  • 2017-2020 GLC63 AMG, BASE (X253)
  • 2017-2020 GLC63 AMG, COUPE (C253)
  • 2017-2020 GLC63 AMG S, BASE (X253)
  • 2017-2020 GLC63 AMG S, COUPE (C253)

Installation Instructions: Here


THESE PARTS ARE LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND ARE NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) These parts may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THESE PARTS IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM ModalWorks, Inc. , AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of these parts, and ModalWorks, Inc. hereby disclaims any liability resulting from the failure to use these parts in compliance with all applicable federal and state laws.

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