CARB Executive Order · Turbo Kit
EO D-550-48
Advanced Flow Engineering · MACH Force-XP Turbo Down-Pipe and Atlas Turbo Down-Pipe
- Executed
- May 2021
- Rows shown
- —
- PDF pages
- 3
We show basic details only for this EO. None of its table rows passed our checks, so we do not copy them. Check the vehicles and part numbers in the original PDF.
What the EO says about the part
The MACH Force-XP Turbo Down-Pipe and Atlas Turbo Down-Pipe replaces the factory exhaust down-pipes allowing the exhaust gases to flow more efficiently out of the engine. The MACH Force-XP Turbo Down-Pipe and Atlas Turbo Down-Pipe have no mechanical or electrical user adjustments, and all the emission related devices are retained in place and function normally.
Quoted from EO D-550-48. The EO exempts the part from California Vehicle Code Section 27156 only for the vehicles it lists.
More EOs from Advanced Flow Engineering
All 61 Advanced Flow Engineering EOs we readSource: CARB Executive Order D-550-48 (PDF), retrieved November 11, 2026. EOs can be amended, superseded or revoked; CARB's copy is the authority. Independent reference, not affiliated with CARB.