Anyone got info on replacement exhaust systems that are as quiet as the factory system? Factory system currently includes front & rear mufflers and a resonator. I dont know whether to go factory or after market which may include some extra power. I am trying to avoid extractors. The primary function is for the system to remain quiet.Thanks
The trouble is (and thus the reasons sports systems are more effective) that the factory resonators and mufflers dont run straight through. they have angles inside them etc to really quieten everything down, so its not as free flowing as a sports (read: louder) one would be.
If youre looking at doing a new system, i wouldnt discount extractors completely just yet, as to really feel any difference you are going to need them. About the only thing i can suggest is that if you want to keep it as quiet as the stock one, try running 1 or 2 straight through mufflers in the system. That way, you'll quieten it down a bit but you wont lose the effectiveness of it.
INDEED YOU CAN HAVE A PERFORMANCE EXHAUST BUT LETS FACE IT ..THE MORE RESTRICTION THERE IS TO NOISE ,THE MORE RESTRICTION THERE IS TO FLOW.Not to say that you cant improve on a stock exhaust because you definately can.But for maximum gains the freer flowing exhaust is going to get more mixture moving through the engine(efficiency)and hence more performance on a naturally aspirated engine.I think it is called scavenging!!
Scavenging is when you have both valves "On the rock or Valve overlap" so to speak where an exhaust pulse draws the rest of the burnt gases out pulling a small amount of fresh mixture in through the inlet valve..
FORD.... "POWER TO THE PEOPLE"...
Hi, I Recently Had A Redback Exhaust Fitted To My Au1 Which Was A Standard Exhaust From The Converter Back. It Is As Quiet As The Factory Exhaust, Still Has The Oval Exhaust Tip And Has A 2 Year Warranty. Ford Parts Only Have 1 Year Warranty. Cost Was $280 Fitted From An Exhaust Shop, Takes About 15 To 20 Mins. Apparently A Sports Exhaust Is Similar In Price And A Set Of Extracters Is About $700 ( According To Our Apprentice Who Just Did The Exhaust On His Au Ute - Sounds Good Though)
Walker exhaust systems are the original fitment to Mitsubishi & Commodore's, not sure about Ford, but most likely. For OEM fitment they usually have extra heat shielding added, but when you buy a replacement part the extra heat shielding is not included. A Walker system is about $250 supplied only, some exhaust shops often run specials around this time of year. This exhaust will be a quiet at the original. Good luck
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