OEM part required 1 class
Intake manifold alterations prohibited. · RRL.4.1
IJSBA · Fuel
IJSBA answers this part for 20 of its classes. 11 of those answers are permissions, with or without limits attached, and 9 are not. 4 are inferred from how the class is written rather than quoted from a rule naming this part.
20 classes, grouped by the answer rather than listed one by one, because an answer that holds for a class usually holds for every class that borrows its rules.
Not permitted, not listed in the rules Our reading, not a rule we can quote at you. This class requires the craft to stay stock except where the rules allow otherwise, and this part is not on the list.
OEM part required 1 class
Intake manifold alterations prohibited. · RRL.4.1
OEM part required 1 class
Intake manifold modification in any portion is prohibited, including screens, filters and spark suppressors.
OEM part required 1 class
Intake manifold modifications prohibited.
OEM part required 1 class
This class requires the OEM part.
Not permitted, not listed in the rules 4 classes
Not listed in this class document. Illegal under the closed-list principle.
Governed by the parent class 1 class
Not restated in this class. Resolve up the inheritance chain.
Legal, within limits 1 class
Allowed on Polaris Hurricane, Kawasaki X2 05-07 and Yamaha Waveblaster. Sea-Doo HX must keep the OEM manifold with factory line connections aligned as from the factory.
Legal 7 classes
Explicitly permitted by this class document.
Legal 1 class
VSKL.4.1
Legal 1 class
SKSS.5.3
Legal 1 class
RSS.5.4
Aftermarket intake manifold: if the rule your class applies reads differently to you, or the rulebook has changed since this was read, ask. We answer with the section we read it from, or that we have not read it. Ask a rules question.
Every IJSBA class · where the rulebooks differ · signed checks on parts the shop sells.
Fuel · two and four stroke · legal outright in 11 of 20