Bates Prototype Valvetronic Exhaust - Custom OEM Exhaust with Valves

amar23 · 02-10-2012, 02:15 PM

ur car sound really nice. alot of after market exhaust dont sound really good. im try to do the samething on my e92. if u can help out

Subw00er · 02-10-2012, 02:58 PM

Quote:

Originally Posted by amar23

ur car sound really nice. alot of after market exhaust dont sound really good. im try to do the samething on my e92. if u can help out

Thanks! I still like it too. Look through the posts, and get a good welder on board and you should be all set!!

UPDATE: Approaching a year now with the JEGS and no issues. Yay, headache over! Exhaust is still going strong, no issues. I Lub it.

Sal@Evolve · 02-10-2012, 03:16 PM

Cannot believe I missed this.
Great idea! Very impressed.

Just one thing.... I am sure others have said this so I don't want to go on about it but the placement is not so nice. Painting the housing black would help alot.

Subw00er · 02-10-2012, 03:54 PM

You haven't seen it because it was made SOOOO long ago (almost two years!) the post got buried.

I think I was one of the first people to start this valve based and stock exhaust mod stuff.

Placement really doesn't bother me, they dont really stick out and when I do see them, I like it.. makes my car special. When you look at the car you dont really see them - blends in with the other silver bits on the exhaust. I think its the low angles of the shots that I took in the thread that make them look so awkward. I have to point them out to car people to even see them. Literally the only person that has pointed them out to me and asked about them the entire time I've had them installed is a BMW mechanic who did an oil change and had it up on a lift. You have to be quite far back to even start to see them..

amar23 · 02-13-2012, 11:19 PM

yea back then i didint had a m3, i just got rid of m5 and got a m3 waiting on new m5 haha

amar23 · 02-13-2012, 11:20 PM

what if u dont put valve like u had,

stefan · 03-05-2012, 09:32 AM

Wow this is awesome.. just coming across this thread now. IMO this is how an exhaust should be done for our cars. Just as the M3 changes its character via throttle, steering, EDC.. it makes sense to have the exhaust do the same.

How are sales? Any updates for us?

mkPOTO · 03-05-2012, 09:51 AM

nice update with the valves!

Subw00er · 03-05-2012, 04:47 PM

Quote:

Originally Posted by stefan

How are sales? Any updates for us?

We never sold any. I had a lot of bites, but no one stepped up. I dont think anyone trusted us or could afford it.. I thought the price was reasonable.. I dunno why to be honest!

I still love mine, no issues beyond the electrics.

j2m · 03-05-2012, 05:04 PM

Very cool, seems that this is the way exhaust is going now. A volume adjustment for the car! I like it!

Subw00er · 03-05-2012, 08:20 PM

Ya yunno after having it all this time, it really is like part of the car. If I want to have fun, hit the M button, then the valve button.. If I want to cruise on the highway, hit both buttons again. Its a no compromises mod.

dreamspeed · 07-30-2012, 01:13 AM

i know it's a bit of a thread necromancy but i just wanted to give kudos to the OP for not only going through with a cool DIY project but also documenting it.

Subw00er · 08-05-2012, 01:57 PM

Thanks for the kudos!

Just a long term update.. the exhaust is still working/sounding great. The jegs valves still work great too, but I also started getting the rattling when closed that someone else experienced. Its a slight ting ting that you can only hear when driving by a building and head the exhaust reflection. I dont know if they will replace them this far out.. worth a try I guess.

UCBPhD · 04-28-2013, 07:04 PM

Beautiful work, and great thread . . . This really should be a sticky in this forum.

playground · 04-28-2013, 07:11 PM

Wow this is a very interesting thread. I was always thinking of doing custom exhaust cutouts. I am glad someone has finally attempted it. Performance gains, and how does the low-end TQ feel?

Subw00er · 04-28-2013, 08:24 PM

I think I posted the dyno stuff in here?! Its a really old thread.

I think you actually lose a bit of low end grunt when opening up an exhaust but gain in the higher rpm. I had plans to close them at the line and then have them auto open at just the right rpm, but I never got around to it.

The JEGS valves did eventually fail too (lasted 2x longer than race ready), but JEGS did replace them for free - its nice to deal with a company that stands behind their products.

The exhaust is still going strong and I LOVE it. Its the best mod I've done to a car, ever.

02-10-2012, 02:15 PM	#221
amar23 New Member Drives: m3 e92 Join Date: Jan 2012 Location: woodland hills Posts: 21 iTrader: (0)	ur car sound really nice. alot of after market exhaust dont sound really good. im try to do the samething on my e92. if u can help out __________________ ///M3
	0

02-10-2012, 03:54 PM	#224
Subw00er Bates '08 Interlagos Launch Drives: 08e92M, 03e46M Join Date: Nov 2005 Location: NY Posts: 1,202 iTrader: (2)	You haven't seen it because it was made SOOOO long ago (almost two years!) the post got buried. I think I was one of the first people to start this valve based and stock exhaust mod stuff. Placement really doesn't bother me, they dont really stick out and when I do see them, I like it.. makes my car special. When you look at the car you dont really see them - blends in with the other silver bits on the exhaust. I think its the low angles of the shots that I took in the thread that make them look so awkward. I have to point them out to car people to even see them. Literally the only person that has pointed them out to me and asked about them the entire time I've had them installed is a BMW mechanic who did an oil change and had it up on a lift. You have to be quite far back to even start to see them.. __________________ Custom Exhaust Project: Bates Valvetronic exhaust: http://www.m3post.com/forums/showthread.php?t=253661 -- Exhaust Mod pics in here: http://www.flickr.com/photos/40236795@N03/ DON'T BUY Race Ready Performance electronic cutout valves. Here's why: http://www.m3post.com/forums/showthr...40#post9589740
	0

02-13-2012, 11:19 PM	#225
amar23 New Member Drives: m3 e92 Join Date: Jan 2012 Location: woodland hills Posts: 21 iTrader: (0)	yea back then i didint had a m3, i just got rid of m5 and got a m3 waiting on new m5 haha __________________ ///M3
	0

02-13-2012, 11:20 PM	#226
amar23 New Member Drives: m3 e92 Join Date: Jan 2012 Location: woodland hills Posts: 21 iTrader: (0)	what if u dont put valve like u had, __________________ ///M3
	0

03-05-2012, 09:32 AM	#227
stefan Colonel Drives: E92M3 Join Date: Feb 2008 Location: Calgary Posts: 2,108 iTrader: (2) Garage List 1999 VF BMW M3 [5.00] 2008 135i [5.00] 2003 M3 [3.10] 2011.75 BMW M3 [4.17] 2009 STi [3.83]	Wow this is awesome.. just coming across this thread now. IMO this is how an exhaust should be done for our cars. Just as the M3 changes its character via throttle, steering, EDC.. it makes sense to have the exhaust do the same. How are sales? Any updates for us? __________________ ///M Power - 2011.75 LMB M3 6MT (fuelly)
	0

02-10-2012, 03:16 PM	#223
Sal@Evolve BimmerPost Supporting Vendor Drives: Slow Join Date: Feb 2008 Location: Luton, Bedfordshire Posts: 1,048 iTrader: (0)	Cannot believe I missed this. Great idea! Very impressed. Just one thing.... I am sure others have said this so I don't want to go on about it but the placement is not so nice. Painting the housing black would help alot.
	0

03-05-2012, 09:51 AM	#228
mkPOTO Mr. Nice Says Hello Drives: 1999 528I Join Date: Dec 2008 Location: USA Posts: 14,909 iTrader: (21) Garage List 2008 BMW E92 M3 [2.74] 1999 BMW E39 528i [2.20] 2007 BMW E92 335I [3.00]	nice update with the valves! __________________ BMW E92 M3 EVOLVE Stage II \| EVOLVE X-Pipe \| EVOLVE E-Tronic Exhaust Macht Schnell Stage II intake \| KW V3 \| Volk TE37SL \| BMW Performance Spoiler Apex Stud Kit
	0

03-05-2012, 05:04 PM	#230
j2m Colonel Drives: '11 E92 M3 DCT Join Date: Jun 2011 Location: Calgary, Ab Posts: 2,452 iTrader: (8) Garage List 2011 BMW E92 M3 [5.00]	Very cool, seems that this is the way exhaust is going now. A volume adjustment for the car! I like it! __________________ 11' E92 M3 Space Grey \| DCT \| ESS VT2- 625 \| Gintani Race (valved) + Quad Res Catless X-Pipe \| KW Sleeve's \| GC Camber Plates\|Arkym Diffuser \| Vorsteiner VRS Lip \| P3 Boost Guage \| Stud Conversion PHOTO's: Click Here ESS VT2 625 PHOTOS: Click Here
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03-05-2012, 08:20 PM	#231
Subw00er Bates '08 Interlagos Launch Drives: 08e92M, 03e46M Join Date: Nov 2005 Location: NY Posts: 1,202 iTrader: (2)	Ya yunno after having it all this time, it really is like part of the car. If I want to have fun, hit the M button, then the valve button.. If I want to cruise on the highway, hit both buttons again. Its a no compromises mod. __________________ Custom Exhaust Project: Bates Valvetronic exhaust: http://www.m3post.com/forums/showthread.php?t=253661 -- Exhaust Mod pics in here: http://www.flickr.com/photos/40236795@N03/ DON'T BUY Race Ready Performance electronic cutout valves. Here's why: http://www.m3post.com/forums/showthr...40#post9589740
	0

07-30-2012, 01:13 AM	#232
dreamspeed Captain Drives: 6MT Join Date: Jul 2012 Location: Los Angeles Posts: 887 iTrader: (0)	i know it's a bit of a thread necromancy but i just wanted to give kudos to the OP for not only going through with a cool DIY project but also documenting it.
	0

08-05-2012, 01:57 PM	#233
Subw00er Bates '08 Interlagos Launch Drives: 08e92M, 03e46M Join Date: Nov 2005 Location: NY Posts: 1,202 iTrader: (2)	Thanks for the kudos! Just a long term update.. the exhaust is still working/sounding great. The jegs valves still work great too, but I also started getting the rattling when closed that someone else experienced. Its a slight ting ting that you can only hear when driving by a building and head the exhaust reflection. I dont know if they will replace them this far out.. worth a try I guess. __________________ Custom Exhaust Project: Bates Valvetronic exhaust: http://www.m3post.com/forums/showthread.php?t=253661 -- Exhaust Mod pics in here: http://www.flickr.com/photos/40236795@N03/ DON'T BUY Race Ready Performance electronic cutout valves. Here's why: http://www.m3post.com/forums/showthr...40#post9589740
	0

04-28-2013, 07:04 PM	#234
UCBPhD Private First Class Drives: 2013 Jerez Black E92 Join Date: Aug 2012 Location: Norcal Posts: 110 iTrader: (0)	Beautiful work, and great thread . . . This really should be a sticky in this forum.
	0

04-28-2013, 07:11 PM	#235
playground Second Lieutenant Drives: E90 ///M3 Join Date: Jan 2013 Location: Causeway Bay & North York Posts: 249 iTrader: (0)	Wow this is a very interesting thread. I was always thinking of doing custom exhaust cutouts. I am glad someone has finally attempted it. Performance gains, and how does the low-end TQ feel? __________________ LAPTORR\|ESS\|GruppeM\|BILSTEIN\|BBS
	0

04-28-2013, 08:24 PM	#236
Subw00er Bates '08 Interlagos Launch Drives: 08e92M, 03e46M Join Date: Nov 2005 Location: NY Posts: 1,202 iTrader: (2)	I think I posted the dyno stuff in here?! Its a really old thread. I think you actually lose a bit of low end grunt when opening up an exhaust but gain in the higher rpm. I had plans to close them at the line and then have them auto open at just the right rpm, but I never got around to it. The JEGS valves did eventually fail too (lasted 2x longer than race ready), but JEGS did replace them for free - its nice to deal with a company that stands behind their products. The exhaust is still going strong and I LOVE it. Its the best mod I've done to a car, ever. __________________ Custom Exhaust Project: Bates Valvetronic exhaust: http://www.m3post.com/forums/showthread.php?t=253661 -- Exhaust Mod pics in here: http://www.flickr.com/photos/40236795@N03/ DON'T BUY Race Ready Performance electronic cutout valves. Here's why: http://www.m3post.com/forums/showthr...40#post9589740
	0

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