If you are going to make it from a existing exhaust you will have to cut into the 'front' side of the box and feed a pipe through the inside of the box about 2/3 of way through.
it will be trial and error to make the gasses flow through both tailpipes the same!
OR
Sebring make them for about £350
Do a web search for Powerflow Exhausts. They will make stuff in stainless while you wait, with a lifetime warranty and its not too dear. Had one on my old vectra, quite impressed.
Check the web as in the UK a company called Powerflow will make a free flow one while you wait from Stainless steel and give a lifetime warranty. They are very skilled, quick workes and not too expensive. I don't know if they have shops in Brazil though!
Theres a one in my local dealer with a twin exit exhaust fitted. It looks like a powerflow job. Its raised up in the air so you can see underneath it. The workmanship looks good, however I'm not too impressed with the way the bumper has been cut to fit.
I'll take some photo's on the way home and post them up.
On the S3, maybe, but not on an A3 w/out modifying the hangers and cutting the heat shield (as well as the valance of course) /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/beerchug.gif
Get down to Predator Motorsport in Welwyn Garden City. They make amazing custom exhausts, much better than Powerflow imo. Powerflow ones i've seen tend to rust within six months.
When I told my mates what I was gonna do, they all said it sounded horried, twin 6"x4", but afterwards they changed their mind! Its original colour, ming blue I think. Lots of polish too!
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