There's no way a catted downpipe would only provide 2-3 more hp.... The majority of the downpipes out there are catted pipes, such as exhaust depot and alta. People wouldnt be buying them for 2-3hp

 

A lot of people buy MacDonalds because of the marketing and not the quality.

sometimes the wallet will give false readings on the dyno.

 

Haha very true statement

ps. love how you have 90 posts already.

 

People buy mcdonalds because its cheap and its fast and its easy....

I'm pretty sure people would have figured out by now that catted dp's dont give any power.... 2-3hp is nothing

 

dude it is so cold i had to disconnect my water meth because chunks of ice kept getting caught in the intake valves.

Yeah nothing to do because the ball n chain and my little princess are out of town visiting Grandpa.

 

Can you explain why people buy alta or nm enginering intakes, boost tubes and hard pipes then?

 

Run a higher concentration of meth, or straight meth....

 

50/50 snows boost juice

 

Check this out if you haven't come across it yet http://www.youtube.com/watch?v=zePOXz6v_EY

 

That is true, but I refuse to think that this is the case with aftermarket catted downpipes.

Can anyone else chime in here with their opinions?

 

I refused to accept that Santa was not real until i was 9.

 

I mean you also don't seem to believe that FMIC's add any power.
But I have to think that a highflow cat, with less restrictive piping is going to add a good amount of power over stock. And looking over at other car forums, people add catted aftermarket dp's all the time with positive results.

 

Dude you need to read the post by clint.fmic do not add power,the fmic provides benefit in regard to heatsink.The aftermarket fmic have more surface area that minimize heat sink.

cold engine with stock mini front mount vs cold engine with aftermarket larger front mount (both flow the same amount of cfm)will make the same hp or the larger front mount will lose a little hp because of boost drop.(it has to fill a larger volume before it reaches the intake port on the cylinderhead)


The only way a larger fmic will provide a hp increase is if it flows more cfm.The mini stock fmic flows just as well as the ones that are currently offered by the aftermarket.

Understand ?

 

You can have the biggest pipe with most freeflowing bends but if you have the pipe paired with a cheap lowflow(even the best cat will not flow with a unrestricted pipe) cat you have gained nothing or have lost power.

On downpipes i say go with more flow ,more power and less expense.

As far as having your car go thru a state inspection just r&r the aftermarket downpipe withe the oem downpipe a week or 2 before inspection.(it only takes a few minutes to swap pipes)