I like the shell. Pre-Tacoma, for a couple months I was daily driving my Chevy 1991 K2500LD 4x4 with the 350 TBI. I managed to get it up around 18 MPG, mainly thanks to a 4L60 automatic to NV4500 manual transmission swap I did a while back. From your photos, it doesn't look like you have a factory air dam installed. I saw a 0.5 to 1 MPG improvement from installing one on my truck.
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