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Compare the 5 best cat-back exhaust systems for the 2004-2008 Ford F-150 4.6L & 5.4L V8. Real specs, sound, and p...

Compare the 5 best long-tube headers for the 5.7 & 6.4L Hemi Charger, Challenger & 300C. Real dyno HP gains, ...

Compare the best headers for the 1996-2004 Mustang GT 4.6L 2V: BBK long-tube vs shorty, RWHP gains, plus X-pipe and c...

Compare the best 4-inch exhaust systems and downpipes for 1989-1993 Dodge 5.9L Cummins. Real EGT gains, specs, and pr...

Compare the 5 best exhaust systems for 1997-2004 C5 Corvette - Borla, MagnaFlow and Kooks. Sound levels, specs, and p...

Compare the best headers and exhaust for the 2003-2011 Crown Victoria and Grand Marquis 4.6L. Real specs, dyno-backed...

Best exhaust for the 1998-2002 Ford Crown Victoria 4.6L: compare MagnaFlow BRExhaust direct-fit cat-back kits, specs ...

Best exhaust & bolt-on upgrades for the 1987-1992 Toyota Supra Turbo (MK3): Revel cat-back, HKS head gasket &...

Compare the 5 best headers for the 2009-2018 Ram 1500 5.7L Hemi: shorty vs long-tube, real hp gains, CARB-legal picks...

Akrapovic G82 M4 exhaust systems in titanium: Slip-On Line, carbon tips, octagonal tail pipes, Sound Kit and OPF/GPF ...

Akrapovic F82 M4 exhaust guide: titanium Slip-On Line, carbon and titanium tips, weight savings and ECE-legal fitment...

Akrapovic G80 M3 exhaust guide: titanium Slip-On Line, carbon tips, sound kit and Evolution link pipe for the S58 M3....