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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 335i - exchanging the cat's



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      04-16-2007, 12:54 AM   #23
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Quote:
Originally Posted by edgarj View Post
You have to smog a new car @ 3 years in Oregon, but I think that they just hook it up to the OBDII port, so I don't know if that would turn up.

Why is the Super Sprint downpipe kit so expensive? It that on par with their other models, or just due to the exclusivity?
exclusivity.

Anyone can make a V-band clamp downpipe. It doesnt need to be $2300 bucks though. I could prolly make a set, and turn it out for under a G. They would be all hand made though, and prolly every one of them would be slightly different, because Ive never used a jig before. If I could find someone who could jig it up and mass make em, that would be great.
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      04-16-2007, 04:13 AM   #24
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Quote:
Originally Posted by itsbrokeagain View Post
exclusivity.

Anyone can make a V-band clamp downpipe. It doesnt need to be $2300 bucks though. I could prolly make a set, and turn it out for under a G. They would be all hand made though, and prolly every one of them would be slightly different, because Ive never used a jig before. If I could find someone who could jig it up and mass make em, that would be great.
Hi

Initialize a group buy. If you have 10 customers buy one and make them for < $1K. I'm pretty sure it would be a good business . Ask a lawyer if there would be any copyright issues first.

The advantage over other products ( when they will be available ) would be the compatibility to the rest of the SS exhaust sections.

My US$ 0.02

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      04-16-2007, 05:35 AM   #25
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It makes sense to have racing cats further back in the exhaust. Nothing gets hurt (power, environment, wallet due fines, next owner that must go to the smog and will come back to you after turned down in the emission tests...)
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      05-26-2007, 09:20 PM   #26
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Any pics of the Single 100MM tips installed on a E92 335i? Do the straightpipes replace the cats? Are both straightpipes included for $369 or is that $369 per pipe?

Thank You ; )
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      05-26-2007, 10:30 PM   #27
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well I might be landing a new job at the Porsche shop that used to work on my own. Hes heavily involved with the road racing scene and PCA, so he might be interested in taking on such a project. Sometime this summer we should have some answer.
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      05-26-2007, 11:24 PM   #28
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Quote:
Originally Posted by jon@themshop View Post
I am sure the SS turbo down pipe will have 4 O2 bungs to accommodate all pre-cat and post-cat o2 sensors but if the post-cat sees the same signal as the pre-cat then it'll think the cat has failed and check engine light will show up.

The only fix for a BMW is either software (turning off post cat o2 sensor monitoring) or O2 simulators.
Wouldn't relocating the second O2 sensor to the back of the post-cat work? It did in the S4 world. All we had to do was cut a few tie wraps to get the extra length needed and we avoided the check engine light while staying emissions legal.
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      05-27-2007, 01:48 AM   #29
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Glad I dont have emissions in Florida :P
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      05-27-2007, 03:24 PM   #30
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Originally Posted by jon@themshop View Post
Supersprint is the only company that I know that sells a turbo downpipe for the 335i which eliminates the primary catalytic converters. However it ain't cheap.. retail is $2735.00.

There's also the issue of the service engine light coming on because the post cat o2 sensors will detect no cats are present.

I seriously can't believe this. $2735 for a set of pipes? Are they made from Inconel and Platinum plated or something?

IMO, Supersprint has to be one of the most overrated exhaust companies out there.
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      05-27-2007, 04:29 PM   #31
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Quote:
Originally Posted by Mr. 5 View Post
I seriously can't believe this. $2735 for a set of pipes? Are they made from Inconel and Platinum plated or something?

IMO, Supersprint has to be one of the most overrated exhaust companies out there.
Supersprint makes very high quality products but they also seem to be HIGH when pricing them.
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      05-27-2007, 04:42 PM   #32
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I should have some downpipes released soon
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      05-27-2007, 06:15 PM   #33
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Quote:
Originally Posted by Mr. 5 View Post
I seriously can't believe this. $2735 for a set of pipes? Are they made from Inconel and Platinum plated or something?

IMO, Supersprint has to be one of the most overrated exhaust companies out there.
Super sprint is a JOKE. Who the hell do they think they are charging 3k here and 2k there for a pipe this and muffler that, its bullshit. I dont care how much "R & D" they go through, its a bunch pipes and welds at the end of the day. Atleast Kreissegg's exhaust systems have electronically controlled cat by-pass valves controlled with a switch in the cabin. Things like that are worth paying alot for but BS stuff like super sprint is not. Eisenmann is good example of good reputation, good quality = a high price but not a rediculous price. Super sprint is just an example of DUMB, over priced shit...i dont care how "light" or "clean" the system or its welds are......nothing from SS is worth its price.
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      05-27-2007, 06:32 PM   #34
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Quote:
Originally Posted by PresaMat View Post
Supersprint makes very high quality products but they also seem to be HIGH when pricing them.
Nice quality is one thing, but the pricing is another.
Another thing, who really cares about how nice the welds are anyway since you never see the exhaust after it's installed?
Most of the supersprint cat back systems on various cars that I've heard sounds unbearably loud anyway.
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      05-27-2007, 06:41 PM   #35
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Quote:
Originally Posted by Mr. 5 View Post
Nice quality is one thing, but the pricing is another.
Another thing, who really cares about how nice the welds are anyway since you never see the exhaust after it's installed?
Most of the supersprint cat back systems on various cars that I've heard sounds unbearably loud anyway.
yea, but by welds i meant weld quality, but still. And look at active autowerke, they're exhuast system is a full cat back thats completely chrome plated or something, has nice small mufflers that will tuck away nicely, and is around 1,400- 1,600 bucks.......
Super sprint doesnt even bother polishing their pipes or anything and yet still have the nerve to charge that much for relatively nothing special what so ever..... like i said, super sprint is a joke. Heres an example of Eisenmann's, Kreis sieg's, and AA's exhuast systems......i dunno about you but they look a hell of a lot nicer then any super sprint system period and im willing to bet they sound better.
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      05-27-2007, 06:47 PM   #36
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eisenmann exhausts also make your car sound like a weedeater engine. I have not heard a clip on that website yet that sounds even halfway decent.
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      05-27-2007, 06:54 PM   #37
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and heres the ugly super sprint
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      05-27-2007, 07:03 PM   #38
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Quote:
Originally Posted by G35revup View Post
eisenmann exhausts also make your car sound like a weedeater engine. I have not heard a clip on that website yet that sounds even halfway decent.
Weedeater? Are you kidding me? I think there A LOT of people who will disagree on you with that. So tell me........these sound like weedeaters?


http://www.eisenhaus.com/video.php?v.../E60_M5_v1.mpg

http://www.eisenhaus.com/video.php?v.../E60_M5_v2.mpg

http://www.eisenhaus.com/video.php?v...tall/335_2.wmv

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      05-27-2007, 08:36 PM   #39
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Originally Posted by BavarianMW View Post
M5 sounds insane!
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      05-27-2007, 08:58 PM   #40
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M5 sounds insane!
Yea that thing is insane, its got evosport headers too though
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      05-27-2007, 09:27 PM   #41
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Of course the M5 sounds good, its a V10. The 335i in that video sounds like garbage though ( way too much rasp). The meisterschaft M5 sounds filthy though.
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      05-27-2007, 10:36 PM   #42
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Quote:
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and heres the ugly super sprint
Ok, how come this 335i supersprint exhaust looks different from the one you posted? Different application?
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      05-28-2007, 12:10 AM   #43
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Originally Posted by G35revup View Post
Ok, how come this 335i supersprint exhaust looks different from the one you posted? Different application?
I think the one that he posted is the M5 mufflers. The one you posted is for the 335. I'm not 100% sure but I think I'm right.
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      05-28-2007, 12:34 AM   #44
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Quote:
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I think the one that he posted is the M5 mufflers. The one you posted is for the 335. I'm not 100% sure but I think I'm right.
yea and either way they both look like shit
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