**Riss Racing** 3 inch CATTED downpipes (Prototype)

maui86 · 03-29-2008, 03:10 AM

great work...excited to see the results.

Adam@Riss Racing · 03-29-2008, 05:32 AM

Quote:

Originally Posted by maui86

great work...excited to see the results.

Thank you very much.

BUMP!!!! Video's and complete pictures on front page. These are still prototype pictures so you'll know what the end result will look like!

sublimey · 03-29-2008, 02:53 PM

Any updates GB Pricing? Would this fit a RHD 335?

Riss Racing · 03-29-2008, 03:09 PM

Quote:

Originally Posted by sublimey

Any updates GB Pricing? Would this fit a RHD 335?

We have lots of clients with RHD running the catless right now. So yes it will.

O-cha · 03-29-2008, 05:03 PM

So how bout those O2 simms for the catless customers?

Riss Racing · 03-30-2008, 01:13 PM

Quote:

Originally Posted by O-cha

So how bout those O2 simms for the catless customers?

Almost done with them....we didn't forget we had to make them then manufac them we have a few done and working.

vinny84 · 03-30-2008, 02:41 PM

whats the cat cell count?

Adam@Riss Racing · 03-31-2008, 02:14 AM

Hoping to get some dynos done this week. Still looking for an RR catless DP customer local. We pay for the dynos to compare catless and catted.

Riss Racing · 03-31-2008, 09:53 AM

Quote:

Originally Posted by vinny84

whats the cat cell count?

400

b335i · 03-31-2008, 12:06 PM

PM'ed

DrewKo · 03-31-2008, 04:12 PM

How are your cats any different from the high flow cats that BMW already uses? I mean with respect to the cylinder portion, not the piping. Tx.

Adam@Riss Racing · 03-31-2008, 04:20 PM

Quote:

Originally Posted by DrewKo

How are your cats any different from the high flow cats that BMW already uses? I mean with respect to the cylinder portion, not the piping. Tx.

Hi Drew,

Great question. BMW cats are not high flow. They're extremely restrictive and do not give proper flow through the exhaust. These cats are true high flow cats and still offer the 3 inch piping like our catless. They will taper down to 2.5" so they will fit ANY aftermarket/stock catback system. Thank you.

Herms · 04-09-2008, 03:53 PM

Dnyo?

grkmec · 04-09-2008, 07:07 PM

do these fit the 335xi?

seccsc · 04-09-2008, 08:29 PM

Quote:

Originally Posted by Herms

Dnyo?

+1

Soni · 04-10-2008, 12:25 AM

Quote:

Originally Posted by Herms

Dnyo?

+1

doba_s · 04-10-2008, 12:43 AM

should we expect 20+ whp with these bad boys ? Can't wait to get them ... I hope I am still in the first 10 on your list ...

hl0m4n · 04-10-2008, 12:46 AM

these cats will perform as well or better than the oem for emissions right?

doba_s · 04-10-2008, 02:05 AM

sounds pretty nice with the stock exhaust

NM_BMW · 04-10-2008, 02:15 AM

Quote:

Originally Posted by grkmec

do these fit the 335xi?

+1

Adam@Riss Racing · 04-17-2008, 04:45 AM

UPDATED PICTURES! We'll be getting them in full production very soon. We'll try to get the full dyno finished this week as well. Thanks guys!

scottp999 · 04-17-2008, 07:51 AM

Excellent. Very interested in these. Hope to hear how smooth the install goes for the early adopters.

03-29-2008, 03:10 AM	#45
maui86 Captain 38 Rep 738 Posts Drives: 07 335i Join Date: Nov 2007 Location: paradise iTrader: (1)	great work...excited to see the results.
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03-29-2008, 02:53 PM	#47
sublimey Private First Class 8 Rep 123 Posts Drives: Boxster S Join Date: Feb 2008 Location: SG iTrader: (0)	Any updates GB Pricing? Would this fit a RHD 335?
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03-29-2008, 05:03 PM	#49
O-cha Brigadier General 230 Rep 4,726 Posts Drives: Mcoupe Join Date: Oct 2007 Location: In front of you iTrader: (2)	So how bout those O2 simms for the catless customers? __________________
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03-30-2008, 02:41 PM	#51
vinny84 Captain 308 Rep 746 Posts Drives: 2005 BMW X5 Join Date: Dec 2007 Location: PA iTrader: (1)	whats the cat cell count?
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03-31-2008, 02:14 AM	#52
Adam@Riss Racing Banned 81 Rep 1,309 Posts Drives: 2006 Interlagos Blue BMW M5 Join Date: Jul 2007 Location: Irvine, CA iTrader: (1) Garage List 2006 BMW M5 [0.00] 2004 Mercedes SL55 [0.00] 2005 Mercedes E55 ( ... [0.00] 2004 BMW M3 (sold) [0.00]	Hoping to get some dynos done this week. Still looking for an RR catless DP customer local. We pay for the dynos to compare catless and catted.
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03-31-2008, 12:06 PM	#54
b335i First Lieutenant 20 Rep 386 Posts Drives: 2008 e92 335i, 2012 f10 535i Join Date: Dec 2007 Location: socal iTrader: (3)	PM'ed
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03-31-2008, 04:12 PM	#55
DrewKo Lieutenant Colonel 46 Rep 1,568 Posts Drives: 335i Montego Blue Saddle Brown Join Date: Jan 2007 Location: Atlanta, GA iTrader: (4) Garage List 2007 335i [0.00]	How are your cats any different from the high flow cats that BMW already uses? I mean with respect to the cylinder portion, not the piping. Tx.
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04-09-2008, 03:53 PM	#57
Herms First Lieutenant 29 Rep 395 Posts Drives: '15 M235i Join Date: Mar 2008 Location: LA. CA iTrader: (0)	Dnyo?
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04-09-2008, 07:07 PM	#58
grkmec Private First Class 18 Rep 170 Posts Drives: 335xi Join Date: Nov 2005 Location: stamford, ct iTrader: (0)	do these fit the 335xi?
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04-10-2008, 12:43 AM	#61
doba_s Major General 421 Rep 6,102 Posts Drives: X7 l Cayenne l 997.2RS Join Date: Sep 2006 Location: Danville iTrader: (26)	should we expect 20+ whp with these bad boys ? Can't wait to get them ... I hope I am still in the first 10 on your list ...
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04-10-2008, 12:46 AM	#62
hl0m4n Major General 2314 Rep 5,627 Posts Drives: BMW Join Date: Nov 2006 Location: NY iTrader: (58)	these cats will perform as well or better than the oem for emissions right? __________________ Cars: 07 335i ► 08 328i ► 11 328xi ► 13 M3 ► 17 M4 ► 14 M6
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04-10-2008, 02:05 AM	#63
doba_s Major General 421 Rep 6,102 Posts Drives: X7 l Cayenne l 997.2RS Join Date: Sep 2006 Location: Danville iTrader: (26)	sounds pretty nice with the stock exhaust
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04-17-2008, 04:45 AM	#65
Adam@Riss Racing Banned 81 Rep 1,309 Posts Drives: 2006 Interlagos Blue BMW M5 Join Date: Jul 2007 Location: Irvine, CA iTrader: (1) Garage List 2006 BMW M5 [0.00] 2004 Mercedes SL55 [0.00] 2005 Mercedes E55 ( ... [0.00] 2004 BMW M3 (sold) [0.00]	UPDATED PICTURES! We'll be getting them in full production very soon. We'll try to get the full dyno finished this week as well. Thanks guys!
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04-17-2008, 07:51 AM	#66
scottp999 Brigadier General 136 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Excellent. Very interested in these. Hope to hear how smooth the install goes for the early adopters.
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