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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 > Finally! Riss Racing Downpipes for 335.. Amazing Power Gains and Info Inside!



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      07-03-2007, 08:35 AM   #309
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Quote:
Originally Posted by CEA 3 View Post
Well Riss Racing is now the second people in the game to do it, and yet they made more HP and TQ and didnt have a 9000 dollar exhaust system on it to make the gains!!! oh and they are going to be more than half that price

it angers me that people try to charge so much because they are first out the gates.

If these downpipes are more than $1500 for the pair then its a rip off. So basically it should only be about 20% of what Super Sprint charges and I still think $1500 is to much. We need some serious competition to lower these prices. If 4 or 5 people where in the game under 1000 would be the normal. In three years we will all look back and be amazed at the high prices.
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      07-03-2007, 08:48 AM   #310
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I paid $375 for an HKS DP for my Evo. It has a machined bellmouth, 1/2" thick flanges and is full 304 stainless. It's a very nice piece. I understand the BMW needs two DP's being twin turbo but, even still that's $750 given the Evo pricing.

I don't understand why these things are so expensive other than it being for a BMW when it is basically just tubing and flanges the same as any other car. I can understand higher prices if you are replacing the O2 housing section right off the turbo or have hiflow cats built in or something. Please correct me if I'm wrong.
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      07-03-2007, 09:49 AM   #311
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Quote:
Originally Posted by hotrod2448 View Post
I paid $375 for an HKS DP for my Evo. It has a machined bellmouth, 1/2" thick flanges and is full 304 stainless. It's a very nice piece. I understand the BMW needs two DP's being twin turbo but, even still that's $750 given the Evo pricing.

I don't understand why these things are so expensive other than it being for a BMW when it is basically just tubing and flanges the same as any other car. I can understand higher prices if you are replacing the O2 housing section right off the turbo or have hiflow cats built in or something. Please correct me if I'm wrong.
totally agree. A pair of long tube headers for a ls-1 or ls-2 engine is about 800 dollars with lots of tubing and some tough bends.
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      07-03-2007, 10:24 AM   #312
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Quote:
Originally Posted by Cookiemonster View Post
If these downpipes are more than $1500 for the pair then its a rip off. So basically it should only be about 20% of what Super Sprint charges and I still think $1500 is to much. We need some serious competition to lower these prices. If 4 or 5 people where in the game under 1000 would be the normal. In three years we will all look back and be amazed at the high prices.
who said they were 1500? please read..... we said they were going to be cheaper
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      07-03-2007, 10:27 AM   #313
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Quote:
Originally Posted by hotrod2448 View Post
I paid $375 for an HKS DP for my Evo. It has a machined bellmouth, 1/2" thick flanges and is full 304 stainless. It's a very nice piece. I understand the BMW needs two DP's being twin turbo but, even still that's $750 given the Evo pricing.

I don't understand why these things are so expensive other than it being for a BMW when it is basically just tubing and flanges the same as any other car. I can understand higher prices if you are replacing the O2 housing section right off the turbo or have hiflow cats built in or something. Please correct me if I'm wrong.
well if you paid 375 for one. 375x2= $750 Atleast... not to mention the flanges off the turbo are completley different and their are harder mandrel bends on the 335 downpipes and its not just tubing and flanges...... guys just trust me when I say they are goign to release for as cheap as posible... understand its not cheap to manufacture this things.
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      07-03-2007, 10:30 AM   #314
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Ok here is a pic of supersprints Downpipes for example.

Notice the flanges off the turbo are not your normal flanges.... they are all machined flanges and not just welded on and simple as most flanges..

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      07-03-2007, 10:31 AM   #315
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Originally Posted by CEA 3 View Post
who said they were 1500? please read..... we said they were going to be cheaper
I know this stuff can be expensive. I did not mean to be a downer. I appreciate your work and the work Riss is doing.
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      07-03-2007, 10:32 AM   #316
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Quote:
Originally Posted by bnj View Post
Anthony explained to me that DPs taper first to 2.75" and then it tapers further to 2.5" so that there is no abrupt decrease in diameter. Thus the design is excellent. 2.5" mid - rear sections are more than enough and any bigger would be just difficult and more expensive.
Great!
Glad your happy with the design!
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      07-03-2007, 11:09 AM   #317
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^ When do you expect to come up with pictures of the product and a price ?

Thank you in advance, Eugen.
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      07-03-2007, 11:17 AM   #318
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Posting picture when the manufactured peice is back. Sorry.

Price is also going to be posted soon as well. They will post that info
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      07-03-2007, 06:47 PM   #319
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Quote:
Originally Posted by CEA 3 View Post
Ok here is a pic of supersprints Downpipes for example.

Notice the flanges off the turbo are not your normal flanges.... they are all machined flanges and not just welded on and simple as most flanges..

I agree those are a little more involved than your typical DP. It looks like they have the O2 bung built in. Do they use a V-band clamp to attach? Also, how does the waste gate flow merge with the exhaust flow? I'm assuming it's pre-DP given the shape of these.

I was not insinuating that you were going to over charge for them. I fully understand what is involved in fabricating a piece like that and don't begrudge anyone a fair profit. I just can't believe how much vendors charge for some of these parts.

That said looking at the pics of those SuperSprint DP's I don't see how they can even begin to justify the price they ask for them. There is nothing that fancy there.

Last edited by hotrod2448; 07-03-2007 at 07:54 PM..
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      07-03-2007, 08:27 PM   #320
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Quote:
Originally Posted by hotrod2448 View Post
I agree those are a little more involved than your typical DP. It looks like they have the O2 bung built in. Do they use a V-band clamp to attach? Also, how does the waste gate flow merge with the exhaust flow? I'm assuming it's pre-DP given the shape of these.

I was not insinuating that you were going to over charge for them. I fully understand what is involved in fabricating a piece like that and don't begrudge anyone a fair profit. I just can't believe how much vendors charge for some of these parts.

That said looking at the pics of those SuperSprint DP's I don't see how they can even begin to justify the price they ask for them. There is nothing that fancy there.
+1...nothing fancy at all

Just the bends are the hardest part and V-bands flanges are not cheap themselves...
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      07-04-2007, 07:47 AM   #321
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I have a question for you CEA... did you take the new DPs off your car to send them in as the prototype to get replicated and manufactured? And then is this the reason why you cant make us videos to hold us over?
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      07-04-2007, 08:39 AM   #322
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Quote:
Originally Posted by CEA 3 View Post
+1...nothing fancy at all

Just the bends are the hardest part and V-bands flanges are not cheap themselves...
I mean for the price they (supersprints) should be extrude honed inconel wrapped in 24k gold heat shielding.
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      07-04-2007, 09:52 AM   #323
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or at least some JET-HOT Sterling for additional heat insulation and fancy look...
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      07-04-2007, 10:17 AM   #324
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Add me to the list when they are ready!
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      07-04-2007, 12:46 PM   #325
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Quote:
Originally Posted by PsychoPhyr View Post
I have a question for you CEA... did you take the new DPs off your car to send them in as the prototype to get replicated and manufactured? And then is this the reason why you cant make us videos to hold us over?
I wish it was that easy.... but yes the prototypes are no longer on my car and the stock downpipes are back on, until they get the first batch of production peices.

Ill get some videos ASAP... we took a couple vids but it turned out like shit and you see is my car going down the street, and on the dyno it just blew the speakers and it just sounds like wind hitting the mic.

We will give some vids up when they get the first batch back, also plenty of pictures.... they are going to be for sale here really soon!
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      07-04-2007, 12:46 PM   #326
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Quote:
Originally Posted by hotrod2448 View Post
I mean for the price they (supersprints) should be extrude honed inconel wrapped in 24k gold heat shielding.
hahahahah
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      07-04-2007, 01:48 PM   #327
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Quote:
Originally Posted by Raz5219 View Post
Pardon the newb question, but what's the difference between the downpipes that the car already has as opposed to these downpipes? How much will changing downpipes increase engine performance? Also how labor intensive is it to install?
Did you read the first page of this thread at all?
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      07-04-2007, 02:37 PM   #328
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CEA, is it safe to run the dp's with procede without tuning? Shiv? I'm ready to order as soon as the first batch arrives.
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      07-04-2007, 02:41 PM   #329
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Quote:
Originally Posted by Raz5219 View Post
Pardon the newb question, but what's the difference between the downpipes that the car already has as opposed to these downpipes? How much will changing downpipes increase engine performance? Also how labor intensive is it to install?
These are larger and flow better, and remove/relocate the cat converters for improved performance. He said install takes the average shade-tree guy around 2hrs the first time.
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      07-04-2007, 02:45 PM   #330
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Quote:
Originally Posted by hotrod2448 View Post
I paid $375 for an HKS DP for my Evo. It has a machined bellmouth, 1/2" thick flanges and is full 304 stainless. It's a very nice piece. I understand the BMW needs two DP's being twin turbo but, even still that's $750 given the Evo pricing.

That's exactly why I said in an earlier post I bet they are $300-350.
Of course, my ding-bat thinking forgot we have/need two DP's but I would suspect they could be made for a good profit for $700 for the set.

$275-375 is common pricing for aftermarket DP's on most other turbocharged cars. These should be no different just because these are for a BMW.
No gouging is necessary.

Not that I'm too concerned as chances are I won't get them anyway.
Probably make the car too loud. If our cars were Mustangs, Camaros, Corvettes, or so forth, loud is fine. Luxury performance car?? Sorry, loud just doesn't fit it for me.
Then there is still the uncertainty of drivetrain durability on our cars.
I think PROcede v2.0 will already be pushing the limits of what I'm comfortable with on these trannies and drivetrains.
I don't want to be the one to "test" the strength of these drivetrains with 450 hp and 475+ lbs-ft of torque coming from the engine and through the drivetrain.
If in time the 335i's drivetrain proves to be pretty bullet-proof, have at it.
But by then, I'll probably be onto a new car anyway.
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