Hi flow cats?
Thread Starter
Instructor
Joined: Jan 2005
Posts: 113
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Hi flow cats?
I had Dynatech headers intalled and they removed the cats - the car is a little too loud and really bad on gas - how much would a set of high flow cats cost and what exactly would they do for me? What would be the difference if I just put the original cats back on? thanks
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 26
From: Austin Texas
The original cats can't be used with the Dynatech headers, different position and shape. Just contact Dynatech or your Vendor and buy the HiFlo cats that fit the Dynatech headers. Cats install shouldn't change the gas mileage, you may have another problem.
Instructor
Joined: Apr 2006
Posts: 191
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No Cats
I have always found that I get better gas milage after removing cats. I am not sure how much quiter it would be if you put on high-flow cats... Think I would leave it alone you are probably just getting worse gas milage because you are nailing it all the time.
