I am wondering if a 5th gen exhaust would restrict the flow terribly bad on my turbo setup? any guess? I am thinking of trying one, just to get a almost perfectly stock sound (although i know this is impossible, especially when trying to keep HP in mind)...

thanks for any help

 

do you mean just the 5th gen muffler? Keep in mind it's 2.25

 

The 2k2+ is 2.5". I think you will loose power if you drop down. Jime had a 2k 2.25" muffler inled reamed out to 2.5", I have a 2.25" 2k muffler with a full 2.5" system and put up prettu good numbers. I just got my full Warpspeed 3" system and should have it on and dynoed in a few weeks to see how much of a power gain their is. I'm sure it will be louder even though i had Dallas put a extra long resonator on it

 

Well correct me if im wrong, but any type of normal muffler will cause backpressure than a straight through design muffler. I dont know how much backpressure it will cause and what the HP drop will be to have a stock sounding setup.

Matt I remember when you did your baseline at SRT one month ago or so and thought to myself without that muffler on the top end might have put your over 350. I might be wrong since Im a noob to these things. I just think how a NA car with a straight 2.5" mandrel bent exhaust with a Ypipe gives good gains because of its straight through design and very little back pressure.

Dixit

 

Yes, I should pick up 20hp/tq with this full 3" system, I hope so... That 3 dyno session was a base line for this upgrade. When I go back in a few weeks or so I will be spending alot more time fine tuning and adding some juice too

Sure straight through flow better, but they are also much louder though, fart car The 2k+ mufflers are sorta the best of both worlds, when the second flap opens its a much better flowing muffler, at cruising speeds is quiet.