Mazda Rx-8 Renesis - Streetported Variant & Added Weight
#39785 from Kyle Bolden · Rule change · TB 26-04 (2026-04 Fastrack)
In STU Table B: Alternate Vehicle and Engine Allowances, add the following:
Model: "Mazda Renesis Street Port"
Maximum Displacement (cc's): "N/A"
Minimum Weight: "2450"
Notes: "Street porting allowed. Alternate 70mm choke throttle body from the following list allowed: OE from 1996- 2004
Mustang 4.6 liter V8; BBK #1700 (e.g., Summit #BBK-1700); Summit #227204; Trickflow #24070 1” thickness max manifold
adapter allowed."