Reserve your build slot with a $1,000 refundable deposit. Every ModalWorks M177 equal-length exhaust manifold is printed and machined to order — this deposit locks in the next available build slot without paying the full amount today.
How it works:
- Place the $1,000 deposit — it reserves the next open build slot in the queue
- We contact you within one business day to confirm your configuration (bare 316L or Cerakote thermal barrier) and fitment
- The balance ($3,599 bare / $3,849 Cerakote, less your $1,000 deposit) is due before your unit ships
- Standard lead time applies from deposit: about 4 weeks, plus 1–2 weeks for Cerakote
- The deposit is fully refundable any time before your unit enters production
Ready to order outright instead? Head to the M177 equal-length exhaust manifold product page — or read the full physics and dyno data in the engineering deep-dive.
Vehicle Applications:
All M177 LS1 platforms — 2015–2021 C63 / C63 S (W205/C205), 2015–2021 AMG GT / GT S / GT C / GT R (C190/R190), 2017–2021 GLC63 / GLC63 S (X253/C253).
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