X-pipe H-pipe

DIZ.DAT · 11-09-2014, 07:46 AM

I have recently put VRSF 3 inch DPs on my 335i E92. Already had muffler delete so its pretty loud and i love it lol. The only thing i know is that turbos don't really like back pressure built in the exhaust so I was told its good but I wanted to make it 3 inches all the way out.

My question is will the 3 inches all the way out make a difference in the sound? Also I might as well make some kind of H PIPE or X PIPE. Will that help with the overall performance and sound? Thanks in advance!!!

Whiteout335i · 11-09-2014, 08:05 PM

Diameter will definitely make a difference in sound. I have the hpf exhaust (basically 3.5" straight pipe) my buddy has his oem exhaust straight piped (2.5") mines definitely deeper and his is more raspy. Hope that helps

shadow191 · 11-09-2014, 08:32 PM

HPF is a single though isn't it? That's going to sound different than the OEM since it merges the 2 banks.

An X pipe will change the sound some as it merges the 2 exhaust flows as well. It does sound different than an H-pipe. But going to a full 3" all the way back isn't going to do much with stock turbos. The OEM exhaust flows fine, the down pipes are a restriction, but no the exhaust itself.

DIZ.DAT · 11-10-2014, 07:57 PM

Thanks whiteout. Thats what I'm going to do. 3inch all the way back.

Shadow. Im just wanting to open it up. I thought the X pipe would open it up and give it a lil more power.

Whiteout335i · 11-12-2014, 09:01 PM

Yes its a single vs the oem two but it shaved off 40lbs also id go that route if your going full custom exhaust

11-09-2014, 07:46 AM	#1
DIZ.DAT Second Lieutenant 46 Rep 280 Posts Drives: E92 335i Join Date: Jun 2014 Location: Orlando fl iTrader: (1)	X-pipe H-pipe I have recently put VRSF 3 inch DPs on my 335i E92. Already had muffler delete so its pretty loud and i love it lol. The only thing i know is that turbos don't really like back pressure built in the exhaust so I was told its good but I wanted to make it 3 inches all the way out. My question is will the 3 inches all the way out make a difference in the sound? Also I might as well make some kind of H PIPE or X PIPE. Will that help with the overall performance and sound? Thanks in advance!!!
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11-09-2014, 08:05 PM	#2
Whiteout335i Second Lieutenant 30 Rep 289 Posts Drives: 2010 335i alpine white Join Date: Jul 2013 Location: Nashville, tn iTrader: (1)	Diameter will definitely make a difference in sound. I have the hpf exhaust (basically 3.5" straight pipe) my buddy has his oem exhaust straight piped (2.5") mines definitely deeper and his is more raspy. Hope that helps
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11-09-2014, 08:32 PM	#3
shadow191 Lieutenant Colonel 181 Rep 1,681 Posts Drives: 2017 Volvo XC90 R-Design Join Date: Dec 2012 Location: GA iTrader: (3)	HPF is a single though isn't it? That's going to sound different than the OEM since it merges the 2 banks. An X pipe will change the sound some as it merges the 2 exhaust flows as well. It does sound different than an H-pipe. But going to a full 3" all the way back isn't going to do much with stock turbos. The OEM exhaust flows fine, the down pipes are a restriction, but no the exhaust itself.
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11-10-2014, 07:57 PM	#4
DIZ.DAT Second Lieutenant 46 Rep 280 Posts Drives: E92 335i Join Date: Jun 2014 Location: Orlando fl iTrader: (1)	Thanks whiteout. Thats what I'm going to do. 3inch all the way back. Shadow. Im just wanting to open it up. I thought the X pipe would open it up and give it a lil more power.
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11-12-2014, 09:01 PM	#5
Whiteout335i Second Lieutenant 30 Rep 289 Posts Drives: 2010 335i alpine white Join Date: Jul 2013 Location: Nashville, tn iTrader: (1)	Yes its a single vs the oem two but it shaved off 40lbs also id go that route if your going full custom exhaust
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