✔Compatible with:RC Nitro Powered Car with 3.0cc (.16) /3.0cc (.18) SH Nitro Engine motor,Such as Redcat Volcano S30 Shockwave Tornado S30 Vortex SS Exceed RC Forza,HSP Cars ✔Inner diameter of tube: Approx 11mm ✔Made Of Quality Aluminum Alloy,with Sponges,CNC machined for precision,Anodized,Easy upgrade from the original part ✔Package Include:1x Aluminum capped air filter w/ element (Optional Color) Note: The color of the item may vary slightly due to photography and your own computer /Phone
There's some little error from human measuring.
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Note:Check your specific model's manual for compatibility,or Contact us.