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More Power
06-16-2009, 11:21
MagnaFlow Performance Exhaust Systems (http://www.thedieselpage.com/reviews/magnaflowc.htm)
Do you really need to install a performance exhaust system before adding power?
Does an aftermarket exhaust system really make a difference in dyno or towing performance?
Real-life testing is the best way to answer these questions.

Factory exhaust systems have improved considerably though the years, with mandrel-bent 3-1/2" or 4" tubing now being the norm. You've probably read quite a few exhaust system reviews through the years, and saw the rear-wheel horsepower improvement following the installation of a performance exhaust system. The installation photos were nice and the dyno numbers usually reinforce the notion that an aftermarket exhaust system allows the engine to make more power and help to provide a safety margin when installing performance products. What's the real story?