3.5" or 4" Down Pipes?
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3.5" or 4" Down Pipes?
Hey guys, other than running larger turbo's which i may do later, would there be any benefit in 4" DP's vs 3.5"? I can't really see how there would be unless a massive amount of power was being made. There is a company called Project Gamma who makes ceramic coated 4" DP's for our cars. Thoughts? Thanks.