4" PCM4less FWI or Fast Motorsports 4" Lower Mount ?
Not trying to start any pissing matches here, just looking to see if there has been a head to head comparison of how each does, one being in the fender well, and one in the lower brake duct...any info would be helpful. I also know that one requires cutting and one doesn't...does one do better with a LS7 maf over the other? Thanks!
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