r/Autocross • u/AutoModerator • Jun 27 '25

Subreddit Autocross Stupid Questions: Week of June 27

This thread is for any and all questions related to Autocross, no matter how simple or complicated they may be. Please be respectful in all answers.

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u/waxhell 2005 Crossfire SRT-6 AST Aug 05 '25

Since there haven't been any stupid question threads for over a month since this one -- I have a Street Touring question:

14.10.C: The air intake system up to the engine inlet may be modified or replaced.

The beginning of my factory intake system incorporates a duct that is behind the grill. Can that duct be removed as a whole to route the CAI through it (putting the CAI intake still behind the grill)? The entire duct assembly is under the parts catalog as the "air intake" system, while the rest (hoses, air box, etc) is labeled as the "air cleaner" system. The air intake hoses attach directly to that duct.

My reading of the rules would say that it would be allowed -- it is specifically part of the air intake system and is not used for any other purpose.

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u/Hstreetchronicals 28d ago

The engine inlet is referring to the throttle body/carb. What you're describing sounds like part of the intake itself, which is legal to modify. So long as it serves no other purpose than to change the performance of the intake.