Compression Ignition Addict
Join Date: Jun 2010
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Well, I would like the benefit of cooler EGT's from a larger downpipe. However, if it hurts 6spd performance, I will stick with what I have.
So, my question is what are the benefits if any, to keeping a smaller "stock" downpipe with a 6spd? Im running 4" turbo back on my '99 with 4R100 and I love it. I dont understand how the larger downpipe could hurt 6spd performance but wanted to inquire after a friend told me this.
'99 7.3L PSD, F250 SRW, BTS, 2.5 Ton Rockwell Axles
'02 7.3L PSD, F350 DRW, 6spd, IH Up-Pipes, 4" MBRP