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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 > Can you guys help me to decide...DP's or Exhaust first???



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      02-13-2009, 06:35 PM   #23
joec500
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Hmmm I say skip both...and wait for the Meth Injection Kit. I personally like the stock exhaust, and if you think the tips are too small, look at those dimsa (sp?) tips.

Downpipes could cause issues with service (warranty). From the sounds of it, the Meth Kit will give more HP than either DP's or Exhaust and should be much easier to remove before service.
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      02-13-2009, 06:40 PM   #24
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Quote:
Originally Posted by joec500 View Post
Hmmm I say skip both...and wait for the Meth Injection Kit. I personally like the stock exhaust, and if you think the tips are too small, look at those dimsa (sp?) tips.

Downpipes could cause issues with service (warranty). From the sounds of it, the Meth Kit will give more HP than either DP's or Exhaust and should be much easier to remove before service.
A meth kit, tune, etc has just as much warranty risk IMO. Not to say I wouldn't suggest either - I pissed my warranty away long, long ago
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      02-13-2009, 06:42 PM   #25
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Originally Posted by ar design View Post
A meth kit, tune, etc has just as much warranty risk IMO. Not to say I wouldn't suggest either - I pissed my warranty away long, long ago
Completely agree....but I am assuming...again assumptions since I have not seen the kit.

That it will be more easily reversable than DP's and exhaust....in terms of a backyard mechanic with basic hand tools.
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      02-13-2009, 06:48 PM   #26
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I have exactly 39 days left of my warranty

So that's not an issue, the emissions are!!?
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      02-13-2009, 07:22 PM   #27
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i wanna do dp's too but the labor costs are so damn high
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      02-13-2009, 07:55 PM   #28
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Quote:
Originally Posted by Ville View Post
Which way you guys think is better??

Catted DP's + 2nd cat delete or
Catless DP's + 2nd cat's HF ( thoug it would be stock first )

Edit: you are quick to reply makes this one seem like I wasn't reading all the posts
CATLESS DP and get a quieter or less restrictive exhaust later.
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      02-13-2009, 08:27 PM   #29
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Originally Posted by gtrokin330 View Post
i wanna do dp's too but the labor costs are so damn high
Hit up Matt(itsbrokeagain) he can probably do it for reasonable price, plus the food and maybe some beers! When I get mine in the future I am hitting him up for sure@
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      02-13-2009, 08:36 PM   #30
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I am thinking of doing the catless d/p as my first performance mod. I know a lot of you will not agree. I want to tune, but have not decided which one to get. Plus, from what I have read, there are some out there still being developed. So, i'm going d/p first then decide later on tune.

I also want to see how much of a gain the d/p alone will give me.
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      02-13-2009, 08:57 PM   #31
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Quote:
Originally Posted by 40yroldawakening View Post
I am thinking of doing the catless d/p as my first performance mod. I know a lot of you will not agree. I want to tune, but have not decided which one to get. Plus, from what I have read, there are some out there still being developed. So, i'm going d/p first then decide later on tune.

I also want to see how much of a gain the d/p alone will give me.
I think getting a tune is the better route than getting DPs....more bang for the buck, plus the DP install will run you around 300-400 hundred....thats the price of a used V3 right now!!!!!
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      02-13-2009, 09:04 PM   #32
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Quote:
Originally Posted by cn555ic View Post
I think getting a tune is the better route than getting DPs....more bang for the buck, plus the DP install will run you around 300-400 hundred....thats the price of a used V3 right now!!!!!
I understand that, but look at this way. I see so many people selling there tunes for something bigger or better, things are always changing with tunes. Prices go cheaper, better things happen. A downpipe is a downpipe, start with that and you have that much out of the way, your ready for any tune that comes along.
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      02-13-2009, 09:11 PM   #33
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Quote:
Originally Posted by cn555ic View Post
I think getting a tune is the better route than getting DPs....more bang for the buck, plus the DP install will run you around 300-400 hundred....thats the price of a used V3 right now!!!!!
IMO if you plan to get a tune, you should upgrade intake, dp, exhaust, etc before you do anything else. Yes...according to the many testers it is "safe" to use a tune with stock components if you drive your car within reason. I also understand your point of view of bang-for-the-bug...and over the short term it makes sense. However, over the longhaul (i.e. if you want to keep your car for more than 3 years) it is beneficial to put a tune only after you upgrade this other components...unless of course you have enough cash to to upgrade everything in one shot.

Quote:
Originally Posted by 40yroldawakening View Post
I understand that, but look at this way. I see so many people selling there tunes for something bigger or better, things are always changing with tunes. Prices go cheaper, better things happen. A downpipe is a downpipe, start with that and you have that much out of the way, your ready for any tune that comes along.
Exactly!!!
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      02-13-2009, 09:15 PM   #34
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Quote:
Originally Posted by 40yroldawakening View Post
I understand that, but look at this way. I see so many people selling there tunes for something bigger or better, things are always changing with tunes. Prices go cheaper, better things happen. A downpipe is a downpipe, start with that and you have that much out of the way, your ready for any tune that comes along.
Yeah I can understand what your saying, but Procede and JB$ is already running it limits with bolt ons now, other than Meth and bigger turbos which are mods for the all out performance junkies but from what it looks like when I met you in Iselin meet, that should be enough to satisfy you thirst for power especially since you were so hesitant to do performance mods on your car in the first place....
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      02-13-2009, 10:00 PM   #35
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Originally Posted by Ville View Post
Thanks guys

99% sure that I'm gonna go with the AR catless DP's next!!

the 1% is me worried about smog/emission tests...Any thoughts???

I really woudn't want take them off and on again!!
Why AR?
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      02-13-2009, 10:07 PM   #36
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Quote:
Originally Posted by cn555ic View Post
Yeah I can understand what your saying, but Procede and JB$ is already running it limits with bolt ons now, other than Meth and bigger turbos which are mods for the all out performance junkies but from what it looks like when I met you in Iselin meet, that should be enough to satisfy you thirst for power especially since you were so hesitant to do performance mods on your car in the first place....
Yeah, I was hesitant at first, but I had just got the car. I also recently got something else to drive, which was one of the reasons I didn't want to mod much. I also see your point, the first thing I need to do is get rid of this 29.2 lag, which will hopefully go away next week when I take it in for the new program. I almost bought a JB3 a few weeks ago, it was a good deal, but a guy at work talked me out of it, and is explaining why the d/p would be where to start. The guys had some pretty quick turbo cars and knows a good bit. He can't understand why nobody has got rid of the twins and put one big turbo on our cars.
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      02-13-2009, 11:18 PM   #37
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Quote:
Originally Posted by 40yroldawakening View Post
Yeah, I was hesitant at first, but I had just got the car. I also recently got something else to drive, which was one of the reasons I didn't want to mod much. I also see your point, the first thing I need to do is get rid of this 29.2 lag, which will hopefully go away next week when I take it in for the new program. I almost bought a JB3 a few weeks ago, it was a good deal, but a guy at work talked me out of it, and is explaining why the d/p would be where to start. The guys had some pretty quick turbo cars and knows a good bit. He can't understand why nobody has got rid of the twins and put one big turbo on our cars.

Well maybe your friend needs to understand that the larger the turbo, the more lag it will have! You can't stand the lag now with the software, just imagine it to be 3x more with larger turbos!
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      02-14-2009, 10:25 AM   #38
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Catless DP's + 2nd cat's= more emissions???
Catted DP's + 2nd cat delete= less emissions ( compared with the above setup)???

Anyone??

Would really want to know!!
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      02-14-2009, 11:51 AM   #39
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i just installed my RR catless DP's.... the only thing im worried about now is smog emissions and that "god awful smell" that i keep hearing about.

mind you that i have stock exhaust and i plan on keeping it that way.
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      02-14-2009, 12:19 PM   #40
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Quote:
Originally Posted by Ville View Post
Catless DP's + 2nd cat's= more emissions???
Catted DP's + 2nd cat delete= less emissions ( compared with the above setup)???

Anyone??

Would really want to know!!
+2 significant thing for us because after few years we have to go inspection every year and they test emissions.

Which mod's we can put in our car and still pass emission tests?
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      02-14-2009, 12:43 PM   #41
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Quote:
Originally Posted by uuni View Post
+2 significant thing for us because after few years we have to go inspection every year and they test emissions.

Which mod's we can put in our car and still pass emission tests?
+3

On a side note I assume we have different national reqiurements on emissions!
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      02-14-2009, 01:03 PM   #42
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Catless Downpipes first.
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      02-14-2009, 02:18 PM   #43
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Go rr catless dps and stock exhaust. You can free up SOME hp with an exhaust but not much. When I had my car worked I kept stock exhaust to sleep and save a few bucks. The major hp increase is from the catless dps. Also the rr dps along with the stock exhaust give off a nice sound/smell. SLEEPER
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      02-14-2009, 03:51 PM   #44
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Nobody knows about the emissions So hopeless...
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