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Originally Posted by mbdevore
So all the headers, all the cold air intakes, and all these muffelers don't do anything?!?!? Why in the world do they sell and claim all this crap then.
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"ALL" would be a term that would be too general, as some things do give some gain.. I have yet to see anything that performed as well as it should for the cost, thats the difference.. Most just cost a lot of money and add an annoying drone to the engine.
Guess why you see these systems advertised so much?? Because thats what sells them, its not word of mouth and the systems exceeding expectations. I have learned that lots of people buy the systems for a sound or because they cost LESS in some instances than replacement OE systems.
I have also seen some people buy them just so they'd have the ability to add them to their signature line along with all their other snazzy gadgets that they've added to their cars. That sure is an expensive signature line!
The claims are generally made because the developers generally don't expect anyone to test their products more extensively than they do... I have sent many emails and reports to some of these companies over time, but none have even had the common decency to respond...
The one company that made the system that LOST 27HP on a bone stock 3.2 engine said the engine was "breaking" when the test was done.. But they had no explanation for the next group of data that I provided when we swapped the stock system back onto the engine and picked up 25 of that 27 HP loss back to back!
The problem is few of these people know what makes an engine function, fewer have ever made a single repair on an M96 engine or done more than add some "modifications" to it...
Fact is a 250.00 under drive pulley adds more power than most any other single modification...