"X" or "Y" type exhaust which one better?
Which is more efficient in terms of performance and gains the GTM “X” type or the Stillen “Y” type exhaust?
Thanks,
Alex
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Stillen G3-CAI , CBE , Grounding kit // Berk HFC // Eibach Sway Bars // Rear Spoiler // Kick Plates // Fog Light // Escort 9500ix-Shifters ZR4 // Gentex-51A // Next: Stillen 25 row Oil Cooler , Crank Pulley // O.Z. Botticelli III // KW-V3
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