exhaust NEED HELP
 

is this all i need for exhaust system ? like down pipe and every thing to compeat it ?

you need a catalytic converter aswell. unless your gonna use your stock one.

the downpipe is not shown so id assume it done have one

no resonator either. its pretty much a half length straight pipe atm

ok yes this will go from the rear of the car to where the cat was mounted. it looks like it will bolt the the megan racing d/p but might need a 3 inch cat in the middle or a custom adapter to delete the cat if you dont have air care

thats a really loud system, so check local noise laws to, casue it may be classed as "race only"

That appears to be one of the "cat back" systems on Ebay. If so, you may wish to check with the vendor and see if this system bolts directly to the DP.
Most of those Ebay systems are intended for "off road use only". The fact that the system includes the muffler insert, which is designed to be used to "quiet" the exhaust on the street and be removed when at the track, suggests it will eliminate the second cat.
As mentioned, without a resonator, it will be loud. If you run the muffler insert, you will find it very restrictive and it will negate the free flow characteristic of the 3" pipe.
The two systems I have seen from Ebay (not the system pictured) are a good value for the cost. Both eliminated the second cat, had resonators, and are loud enough to turn heads under acceleration.

what are the two systems that you found on ebay ?

I could find only one of the ehaust systems. Attached are two photo's of the system sold by "ETD Motors" on ebay.
$348.00 shipped.

I should have mentioned, the ETD system is the same system sold by Driftmotion.com, just a few $ less.