Apr Stealth to srt??

**chris marchant** · 01-11-2009 08:55 AM

i bought my s4 a few months ago and it has a apr stealth exhaust, i like the low sound that it has but i like the srt, it is possible to convert the stealth to the srt with maybe replacing one of the resonators with a straight pipe to make it a srt. or any other ideas that could help..

thanks alot

**mwbunns4** · 01-11-2009 09:37 AM

im having the same problem, i want something louder and more aggressive. One thing that may wrk is to replace the mufler with a borla or similar.

**chris marchant** · 01-11-2009 10:06 AM

yeah i thought the same thing but i want to keep it all apr with the exception of maybe the pipe that will replace the resonator

**chris marchant** · 01-11-2009 02:57 PM

does anyone else have any helpful ideas?

**laxman851** · 01-11-2009 05:31 PM

How many mufflers does the stealth have?

**turbo kraut** · 01-11-2009 06:22 PM

kill the res and it will deepen up

**chris marchant** · 01-11-2009 08:37 PM

Originally Posted by laxman851

How many mufflers does the stealth have?

the there are 2 muffs, and i said it wrong, the srt exhaust eliminates one of them with a side resonator or somtething like that. i figured just take the middle muff out and put in just a straight piece of stainless steel tubing in place of it?

**laxman851** · 01-11-2009 09:25 PM

If your running catless DP's with your current catback exhaust then I would warn you against putting a straight pipe on, becuase it will then be much louder than most find suitable for daily driving. I have SSA catless DP's with AWE twin1 which consisits of 1 muffler and 1 interchangable section, either a straight pipe section or a resonated section, I think the resonated section a little more suitable for me. But if your running cats you might be alright with the straight pipe.

**chris marchant** · 01-11-2009 09:32 PM

i believe they are the stock dp's

**chris marchant** · 01-11-2009 09:33 PM

how do you think it will sound with the straight pipe in place of the 1 muff?

**lsc2g** · 01-11-2009 09:37 PM

i asked APR about this.. they said to remove the rear muffler and keep the center one for a louder sound.. if you remove the rear muffler it will drone like crazy

as far as cats i'm still stock downpipes with my APR stealth and i'm going catless piggies soon and then if its loud enough good.. if its not loud enough i'll remove the rear muffler

**chris marchant** · 01-11-2009 10:14 PM

Originally Posted by lsc2g

i asked APR about this.. they said to remove the rear muffler and keep the center one for a louder sound.. if you remove the rear muffler it will drone like crazy

as far as cats i'm still stock downpipes with my APR stealth and i'm going catless piggies soon and then if its loud enough good.. if its not loud enough i'll remove the rear muffler

cool, thanks alot, that is almost exactly what i wanted to know. did you do this to your system or are you going to?

**jibberjive** · 01-12-2009 12:29 AM

Originally Posted by chris marchant

the there are 2 muffs, and i said it wrong, the srt exhaust eliminates one of them with a side resonator or somtething like that. i figured just take the middle muff out and put in just a straight piece of stainless steel tubing in place of it?

Yeah like you said, it's not straight through. If you want to see a pic of the side resonator look at the for sell ad in my sig