[Cloud9blue]

Originally Posted by ajsalida

If you care about doing this you'll have to take out the DP's too. And they are a LOT harder than a tune to remove.

Yeah, OP's logic doesnt make much sense

[ihc95]

Lol he doesn't want to void a warranty he doesn't have.

OP just unplug the vacuum line behind the taillight for a slightly louder exhaust. Sounds like DPs would be a waste of money for you.

[ConradConrad]

Yes I am out of warranty now
Yes I understand about maintenance
No I do not go to the dealer any more
I was not out of warranty when I had the tune a while back which is why it was a pain to remove every time I went in for service.

Mention of the further car is a suggestion that I would try it all over agai
I can't be the only one who had one injector go after another after another, each a few months apart and had to take it in for service. My dealer wouldn't replace all at once just one at a time.

I'm done trying to explain myself.

Anyone have any actual input on dp without tunes. Why is there so many "dynos" and posts of dp (pre tune) with power gains?

Lets fuss over why I don't want a tune

[mave198]

Just do it. You'll definitely notice a difference with DPs even without a tune.

Faster spool and you'll turbos will thank you.

[V8bait]

You can get a low maintenance tune that is faster than stock and not problematic fwiw by simply optimizing things for the dp and fuel, especially if you have 93. 330whp or so non aggressively by running like 10psi and tapering it in would be pretty chill... but hey, it's op's thread and goals.

Don't just do a dpfix. Disable the code in the flash. I don't know what tunes you've had experience with, but if I were you I'd at least do that. It's not like auto clear, the code is just no longer there. So you'll still get other codes but not mess with wiring or O2 signals. Dpfix is only if you need it for readiness, which is drastically overrated.

[AS4EX]

Originally Posted by ConradConrad

Anyone have any actual input on dp without tunes.

It's pretty much been answered in previous posts. Most, if not all people with dp's, don't have just dp's. Plenty of people may have just a tune and stock dp's, or with aftermarket exhaust which will obviously give you the most notible exhaust sound. There is nothing saying you can't just run catless dp's, but there's far more info saying it's practically pointless without a simple tune. If a little change in sound is all your after, then as previously stated, just crimp or plug the vaccum line going to the actuator on the end of the drivers side exhaust pipe; doing that will probably actually make it louder than it would just going with catless dp's because you still have two more cats that will deaden the sound. Or if you really really want, you could even get the Borla mid-pipes which would remove your second cats but would have to be fitted to the stock exhaust at a shop.

Save your money and buy something else. How you want to go about doing what you want for what it would cost just isn't really worth it. It's like buying a hamburger but you don't want the patty.

[Danimals]

Originally Posted by ConradConrad

1) having to take it out everytime I got to the dealership for service due to possible voiding of warranty

2) constantly chasing a weak link of either a plug, injector, vanos this or that

3) eating through tires like nobodies business because its very difficult to drive normal with a tune esp when you have a 30 mile commute to work each way

4) knowing that increasing the boost will decrease the lifespan of the vehicle

5) Im out of warranty

6) did I mention taking it out of the car everytime you go to the dealership*

* some of you leave it in when you go in for service, good for you not worth a warranty to me.

Really just wanted a little something, I was looking for a little more exhaust note and maybe something that would make the car feel a tad different when I got on it- sorry I dont want to run a tune. If something does exist like that let me know.

Im not bashing tunes just not my cup of tea right now in this car, when I get another 335 with low miles and a full warranty again Ill be back at it till then....

You don't want a tune because you'll have to take it out? Um hello good sir what about the DPs you'd be installing, your not going to take them out at the dealer then. DPs and no tune is nearly pointless, your not pushing the car anyway, so stop worring about turbo reliability. Point 1 and 6 yet you mention 5.... Good luck..

[derryck]

If you want a different exhaust note without all the 'hassle' then just buy a catback. As others have stated...you're not making much sense and it sounds like you've made up your mind anyway.

[cstmx_ryder]

In all fairness to the OP, aftermarket DPs are 'usually' not that apparent, unless the stealership has to get underneath your car for whatever issues.

As for taking out a tune, if you don't like to spend the 10-15 min of physically removing piggybacks and what not, just go with COBB, flash back to stock before heading to the stealership, and upon returning, flash it again to the maps you want.....I don't have COBB, but from what I've read, it's reallllyyyyy easy, and almost fool-proof.

Then do the 'golf-tee' mod, and you've got more than what you wanted (hp wise as well), with no added hassle, except using COBB to flash, and that's really NOT a hassle at all. You can do that while having a beer or something, and you'll be done before you know it......

Just my .02

[iturbo_bmw]

Originally Posted by ihc95

Lol he doesn't want to void a warranty he doesn't have.

OP just unplug the vacuum line behind the taillight for a slightly louder exhaust. Sounds like DPs would be a waste of money for you.

+1 seriously wtf says he doesn't want to lose warranty....but doesn't have warranty lmao that could be a meme right there

[ConradConrad]

Originally Posted by cstmx_ryder

As for taking out a tune, if you don't like to spend the 10-15 min of physically removing piggybacks and what not, just go with COBB, flash back to stock before heading to the stealership, and upon returning, flash it again to the maps you want.....I don't have COBB, but from what I've read, it's reallllyyyyy easy, and almost fool-proof.

Thank you for you input.

Im actually very surprised at how literal everyone has taken my posts, in fact I made a second post to clear things up about warranty.

Looks like no one had ever had their water pump go out about 65 miles from home and had a tune, dci, charge pipe that they needed to take out first before the car could be towed to the dealership for service( mind you this is back when I had a warranty) and all of this happening an hour before you needed to be at work. This is what I was referring to when I mean inconvenience of removing before service.

This thread has been full of people is a little quick to jump on someone else. Sheesh. To all of you who were able to answer what I was getting at thank you.


Now for my rant:

Bottom line is I was confused as several retailers of downpipes provides dynos of gained power on stock boost. In fact I found many posts (before there was even a JB3 and JB4 on the market) praising the power gains of downpipes on stock boost. Whats so wrong with me wanting to know if thats true regardless of my warranty situation or my need for a tune. Again thanks for those that provided some feedback.

[cstmx_ryder]

Originally Posted by ConradConrad

Thank you for you input.

Im actually very surprised at how literal everyone has taken my posts, in fact I made a second post to clear things up about warranty.

Looks like no one had ever had their water pump go out about 65 miles from home and had a tune, dci, charge pipe that they needed to take out first before the car could be towed to the dealership for service( mind you this is back when I had a warranty) and all of this happening an hour before you needed to be at work. This is what I was referring to when I mean inconvenience of removing before service.

This thread has been full of people is a little quick to jump on someone else. Sheesh. To all of you who were able to answer what I was getting at thank you.


Now for my rant:

Bottom line is I was confused as several retailers of downpipes provides dynos of gained power on stock boost. In fact I found many posts (before there was even a JB3 and JB4 on the market) praising the power gains of downpipes on stock boost. Whats so wrong with me wanting to know if thats true regardless of my warranty situation or my need for a tune. Again thanks for those that provided some feedback.

I hear you man. I've had my water pump fail when I was on my way to change my brake pads, lol. But the only difference is that I had someone help me with the t-stat and water pump replacement. So I didn't have to tow it anywhere.

It failed on me when I was about 5-6 miles away from my parents', so I just drove it there and left it, of course that's with pulling to the side of the road every 100 yards or so to let the car cool down.......

So maybe just COBB and DPs? Aftermarket FMIC is even hard to detect....

[ConradConrad]

Originally Posted by cstmx_ryder

I hear you man. I've had my water pump fail when I was on my way to change my brake pads, lol. But the only difference is that I had someone help me with the t-stat and water pump replacement. So I didn't have to tow it anywhere.

It failed on me when I was about 5-6 miles away from my parents', so I just drove it there and left it, of course that's with pulling to the side of the road every 100 yards or so to let the car cool down.......

So maybe just COBB and DPs? Aftermarket FMIC is even hard to detect....

Thanks, yeah it was a pain because I was in an crappy area, had to do that, then get picked up, driven home to get tools, driven back, take everything out, then it rained. It was a nightmare.

Im out of warranty now but was looking to do something new that would either be a new (mild)exhaust note or small but safe increase in hp since now I dont have to worry about taking dp out it seemed possible. I have 80k and plan on hitting 120k-140k before trade in and newer 335i which Ill go COBB then because of its ease.

Just wanted a little performance while increasing not decreasing reliability( as I thought less restriction would be less load on turbos)

[DuDai]

Originally Posted by ConradConrad

Thanks, yeah it was a pain because I was in an crappy area, had to do that, then get picked up, driven home to get tools, driven back, take everything out, then it rained. It was a nightmare.

Im out of warranty now but was looking to do something new that would either be a new (mild)exhaust note or small but safe increase in hp since now I dont have to worry about taking dp out it seemed possible. I have 80k and plan on hitting 120k-140k before trade in and newer 335i which Ill go COBB then because of its ease.

Just wanted a little performance while increasing not decreasing reliability( as I thought less restriction would be less load on turbos)

Then go FBO, including CP, Cobb lightest stage tune. Swap the turbos with upgraded ones as well for better reliability that don't have the wastegate issues. Change all your vacuum lines out for higher quality ones as well. That should increase reliability and get a small bump in performance.

[gatorheel]

Do it. Better than stock.

[AgentAvalos]

Originally Posted by cstmx_ryder

If you're looking for a different exhaust note, why not just do the golf-tee mod? Should cost less than $5....

$5? That's a rip off. I did mine for free.