Dont know what to go with first a cattman Y pipe or a Greddy Sp. and where is the best place to go to get the best price.

 

I would go with a Y first. Getting rid of those pre-cats is an important step to improved exhaust flow.

 

I think the first mod for your exhaust should be y-pipe, and if you want afterwards, do the Greddy. But definitely the y-pipe first.

 

get budget y-pipe first, $160 shipped.

 

Get the Y-pipe first, but why not just get a Budget Y-pipe for $180 shipped instead of the Cattman pipe? They are both quality made and will give you the same HP gains. And the cheapest price i have seen for the Greddy SP catback is $485 at www.adventon.com

 

Y-PIPE no quetsion about it! You're stock muffler might make a lil bit of noise but oh-well......take the Cat off to....LoL....I did

 

newbie question....wat exactly is a Ypipe???

tia.

 

The best bang for the buck......

 

haha...i'll keep that in mind. but wat is the actual funtionality of the Y-pipe. from the little research that i've done...i think it helps the car "breath smoother"(lack of a better technical term)...am i correct??? so is y-pipe a exhaust???

tia
icheban26(newbie)

 

the y-pipe is part of the exhaust system. It has two inlets that meet at a "Y" connection and form one outlet pipe that connects to the catalytic convert. The furthest reaching inlet connects to the front bank of cylinder's exhaust manifold and removes exhaust. The middle inlet (closer to the outlet of pipe) connects to the rear exhaust manifold and removes exhaust from there. An aftermarket y-pipe is a straighter tube than the stock pipe and doesn't have pre-catalytic converts.

 

PLus it's a lot lighter and has a larger diameter

 

It is the part of your exhaust that goes from your engine's exhaust manifolds back to your Cat. In the stock Y, there are pre-cats which help clean up emmissions before the main cat is hot enough to work. The pre-cats are quite restrictive and the stock pipe has bad flow characteristics to say the least. An aftermarket Y has no pre-cats, it's just nice smooth pipe with mandrel bends, preferably. Budget Exhaust makes a quality pipe for a great price which is why many members of the .org reccomend them, but there are always different opinions on which manufacturer is the best.
http://www.budgetexhaust.com
check out their 'custom parts' to see the Y (they call it an F pipe though) and keep in mind all prices are in canadian dollars.

 

now i know. thanks bb0ys, SleepyMaxxx68, LiquidNine for educating a newbie. i will def look more into changin my Y/F pipe as soon as i get my suspension replaced.

thanks
icheban26

 

Does any Max owner in California have a Y-Pipe? I heard you can't pass emmissions here with one, is that correct? I would like to get one, but would also like to pass emissions.

 

For all the questions about y-pipes, exhausts, everything airflow:
http://drewm.dyndns.org/~drew/maxfaq...imaPerformance

 

When passing emissions testing, are you allowed to warm your car up before hand in order to pass emissions? Are y-pipes reversible or do they need to be welded on?

 

Here's more reading for ya! The pics and text are great. There are dyno plots showing the difference in performance between oem y-pipe and aftermarket pipe (Budget Exhaust's in this case).

 

How many O2 sensors attatch to the Y pipe, and what is it called( i want to replace mine when I install a Y pipe

 

There are 2 O2 sensors in the non-cali spec Ypipe (unsure about the cali cars)... if you crawl under your car you will see them screwed in perpendicular to the vertical section, one for each down-pipe.

 

thank you, are these called the upward O2 sensors and are they the same part number?

 

does anyone notice more frequent damage to the O2 Sensore becuse of the biigger flow and does the cat at all get more prone to damage???