[Whitman158]

Apologies if this is not the correct area. I am looking for input regarding my next steps. I currenlty drive a 2011 335i xDrive. I have a BMS intake, VRSF charge pipe, Dinan Free flow exhaust, JB4 with BT connect running map 5 with about 30% E85. I am considering an intercooler or catted DP as the next mods but am open to suggestion. Thoughts?

[Toome]

Originally Posted by Whitman158

Apologies if this is not the correct area. I am looking for input regarding my next steps. I currenlty drive a 2011 335i xDrive. I have a BMS intake, VRSF charge pipe, Dinan Free flow exhaust, JB4 with BT connect running map 5 with about 30% E85. I am considering an intercooler or catted DP as the next mods but am open to suggestion. Thoughts?

Don't worry you're in the right place. What are your end goals for the car?

[Whitman158]

Originally Posted by Toome

Don't worry you're in the right place. What are your end goals for the car?

Unfortunately I Am not really sure how to answer that. I originally wanted to get about 400 WHP but not sure how likely that is with the AWD. Right now its still my daily driver and i just want to be quicker. Not faster. I have had it to 152 and that was fast enough. 😉

[Toome]

Originally Posted by Whitman158

Unfortunately I Am not really sure how to answer that. I originally wanted to get about 400 WHP but not sure how likely that is with the AWD. Right now its still my daily driver and i just want to be quicker. Not faster. I have had it to 152 and that was fast enough. 😉

400whp isn't possible on a stock turbo N55. Max you'll see is around 380whp on RWD cars.

Intercooler is more of a supporting mod and will give power gains in warm weather, because the car won't pull timing from heat soak.

Regarding the downpipe, do you mean you're looking into a catless or a high flow catted one?

If you are sticking with your JB4 I'd also look into getting a BEF (back end flash).

[Whitman158]

For now i am thinking of a high flow catted dp. And as for the jb4 just got it.. so sticking with it for a bit, but i have gone through both BMW PPK and Dinan tunes. Time will tell. I need to read up more on the BEF. Likewise recently looking at something to change the shift points.

[Toome]

Originally Posted by Whitman158

For now i am thinking of a high flow catted dp. And as for the jb4 just got it.. so sticking with it for a bit, but i have gone through both BMW PPK and Dinan tunes. Time will tell. I need to read up more on the BEF. Likewise recently looking at something to change the shift points.

A high flow catted dp can still give a SES light. A BEF would also disable that (although you'll have to add that in to the tune or have Terry @bms do it for you).

I think both the dp and intercooler are both important in order to make the most reliable power possible.

A BEF will also help out a lot with drivability as you regain the ability to do half throttle pulls. You may find MHD only is better for you as many of us have, but YMMV.

I have an Alpina flash which really changed the way the car shifted, although I might be moving to xHP stage 3 in the near future, which is supposedly even better.

[Whitman158]

Originally Posted by Toome

A high flow catted dp can still give a SES light. A BEF would also disable that (although you'll have to add that in to the tune or have Terry @bms do it for you).

I think both the dp and intercooler are both important in order to make the most reliable power possible.

A BEF will also help out a lot with drivability as you regain the ability to do half throttle pulls. You may find MHD only is better for you as many of us have, but YMMV.

I have an Alpina flash which really changed the way the car shifted, although I might be moving to xHP stage 3 in the near future, which is supposedly even better.

Thanks. I am definitely interested in the alpina and i will look into the mhd. Trying to get everything out of the car I can

[Whitman158]

Originally Posted by Whitman158

Thanks. I am definitely interested in the alpina and i will look into the mhd. Trying to get everything out of the car I can

I ordered both an intercooler and downpipe. Hopefully these will hold me over for a bit. Now to look into the Alpina flash.

[dleccord]

Originally Posted by Whitman158

For now i am thinking of a high flow catted dp. And as for the jb4 just got it.. so sticking with it for a bit, but i have gone through both BMW PPK and Dinan tunes. Time will tell. I need to read up more on the BEF. Likewise recently looking at something to change the shift points.

which dinan tune did you get? s2?

[Whitman158]

Originally Posted by Whitman158

For now i am thinking of a high flow catted dp. And as for the jb4 just got it.. so sticking with it for a bit, but i have gone through both BMW PPK and Dinan tunes. Time will tell. I need to read up more on the BEF. Likewise recently looking at something to change the shift points.

which dinan tune did you get? s2?[/QUOTE]


I got the Dianan P1 which is the stage 2 tune and the exhaust

[dleccord]

Originally Posted by Whitman158

which dinan tune did you get? s2?

I got the Dianan P1 which is the stage 2 tune and the exhaust[/QUOTE]

how was the stage 2 tune compared to stock? and the current tune you have?

[Whitman158]

Originally Posted by dleccord

how was the stage 2 tune compared to stock? and the current tune you have?

The Dinan stage 2 tune is great over stock. Very noticable increase until the top end of each gear. That seems to be a limitation of the turbo and not the tune.

My experience with the Dinan vs JB4 (and I still have the Dinan stage 2 as the base- map 0) it feels better than than JB4 on map 1 but thats where it seems to end. Map 2 is more agressive. And map 5 really seems to bring the car to life. For me the dinan tune is some where between map 1 and 2 on the JB4. I will see if anything changes after the DP is installed.

[dleccord]

Originally Posted by Whitman158

The Dinan stage 2 tune is great over stock. Very noticable increase until the top end of each gear. That seems to be a limitation of the turbo and not the tune.

My experience with the Dinan vs JB4 (and I still have the Dinan stage 2 as the base- map 0) it feels better than than JB4 on map 1 but thats where it seems to end. Map 2 is more agressive. And map 5 really seems to bring the car to life. For me the dinan tune is some where between map 1 and 2 on the JB4. I will see if anything changes after the DP is installed.

is there a difference between map 2 and 5, if you don't run ethanol? oh and thanks for the summary on dinan. i might make the plunge for the dinan s2 and be done performance-wise since it's currently on sale.

[Toome]

Originally Posted by dleccord

is there a difference between map 2 and 5, if you don't run ethanol? oh and thanks for the summary on dinan. i might make the plunge for the dinan s2 and be done performance-wise since it's currently on sale.

Map 5 will always give the most aggressive tune possible with your fuel, ambient temperature, etc.
Map 2 has a set boost level.