Performance with/without silencer

Does a silencer at the tip make a lot of hp difference ? I have invidia g200 and its silencer is 2" diameter

 

it can be anywhere from 5-15hp depending on how restrictive the silencer is.

 

hmm ok.

My catback must go then...

thanx for the reply

 

you need an STi catback. Quiet, OE fitment, easy to find, not too expensive...and is a dramatic increase in power over the stock unit.

 

Will,

when you say "dramatic", how much hp are we talking about? 10? 20?

I bought my catback as a package (with dp and ap) but I don't think the loudness + 10hp is worth the $550 price tag. So, I'm thinking about selling it and get an uppipe and sway bars.

what are the price range for the STi catbacks?

 

Muffler anywhere from $100 to $200.

You'll need the mid pipe (or your stock WRX one will work, they are the same) as well.

Its the same gain. Just sell your catback.

 

yes. when I had the silencer in my Invidia it made a huge negative lowend difference

 

I have my sti catback if you are interested, has about 5000 miles on it.

 

If you want an STI axle back with a cutout welded onto it, PM AWD_Tiger. He's got one for sale for any reasonable offers.

 

http://www.wrxatlanta.com/forums/showthread.php?t=10801

Heres the thread Bobby is talking about. And yes its still for sale.

If you have any questions just let me know, and i can get you some pics of it off the car too if you want.

Let me know
Clayton