just ordered this set up from lmperformance

http://www.lmperformance.com/7322/2.html

and now i'm thinking if it was the right choice to make or not. i've heard numerous times that longtubes are better, but where i live i still need to pass emissions and stuff like that, so i went for the Mac Mids. i see a lot of people with them though, so i know they're not bad. is the difference between these and the longtubes a lot? or just a little? or is this just a waste of money?

thanks

 

Nothing wrong with mids, plenty of people are running them on higher horsepower motors. If you have emissions regulations to satisfy, then that makes the mids a better choice in my opinion.

 

yea, thanks for the info. i was sure of my choice like a week ago, but now that i actually went through with it i was kinda iffy. i'm not going for a drag car right now, just a daily driver with that little extra bit of power and i think these will benefit just how i want them

 

do the cats really take away a noticable amount of power? i heard someone say 5 hp less for keeping the cat, would 2 = 10 hp? or how does that work? i got 2 cats instead of 1 because thats how my car came, and the cats in general to pass emissions. should i just modify the cats in anyway to just appear as if they are there? or keep it how it is with a minimal power decrease? what should i do...

 

Frankly, catalytic converters are much more efficient now then years ago. The power loss with them is very small. Judging from the y-pipe in the picture in the link you posted, it looks like those are high flow cats anyhow so I would be even less worried about potential power loss.

 

here is my story. I went from manifolds to mac mids and gained 2 horsepower!

What a shame

 

go longtubes all the way.....go big or go home my friend