hey guys, replaced my stock cat with a magnaflow hiflow this past october maybe?? and it increased my power a lot! BUT 8 months later, im already getting the same symptoms as the past with the "clogged cat" is that normal? what causes the clogging? should i buy another or just take the cat off? help.. im losing a lot of low end power again

 

have you checked your plenum for leaks?

 

yup- a lenum leak will sure cause it quick like.. but..

the magna flow high flows seem to be hit and miss.. I betcha one in five does precisely what yours did and fails real early like.. not that i've had personal experience with it, but i've read where others have had the issue.. enough that it is a trend.

 

no idea how to plenum check or anything.. don't even know where it is.. lol

 

If I order the part, who could install it for me? And about how much would it all total up to?

 

A mechanic can install it for you. The price varies on location.

 

Can get a new repair kit plus thermostat for 130$ and then I'll have to buy another cat $125 roughly. Just not sure on labor costs for the plenum fix. How mechanically inclined singly have to be? Ive replaced the water pump, that's about as far into the engine I've been before alone.

 

Labor costs will run anywhere from $300 to $500 typically, depending on your area and the mechanic.