Traxxas Revo and HPI RS4 RTR3 for sale or trade. (Page 1/1) Rallaster APR 12, 11:39 AM For sale or trade: Traxxas Slayer with Revo conversion. TRX3.3 racing engine ran good with prepped for long term storage 8 months ago. 2 speed transmission shifts good as well. Needs throttle/brake servo and axle carrier to be road worthy. No body. HPI RS4 RTR3. Has 12R SS engine off of RS4 3 Type SS car instead of stock 15FE engine. Runs good. Has Viper body. Have extra parts and all tools for both. Asking $500 for the pair or $300 each. Or will trade for tenor saxophone of equal value. I can be reached via message on here or at (seven 6 five)3 1 five - 8 five one 7 I can post pictures if requested.