[09bmw335]

I plan on putting in a JB4 and upgrading to new 19" VMR 710 or 703 < (suggestions?) wheels in the spring. Before spring I want to put one more order of mods in to prepare for the JB4 and get a good setup going. Currently I have an Injen Dual Cone Intake and VRSF Catless DP's.

What I plan to order:
- Charge Pipe
- Blow off valve
- 5" or 7" Intercooler

Here are my questions:

1. What brand BOV is the quietest? HKS or Tial? Others? I don't want something very loud and annoying.

2. What size intercooler should I get 5" or 7"? What are the benefits of having a bigger intercooler? Do I need a big intercooler if I have a JB4 & DP's and Intake?

Was thinking about this one but I heard you have to modify the bumper. I wont be tracking my car often it's a daily driver with some occasional aggressive driving and maybe tracking it once a month.

http://www.vr-speed.com/vrsf-7-front...2-e90-e92.html

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I think I am going to go with this CP.

http://www.vr-speed.com/vrsf-chargep...i-n54-n55.html


Hopefully after this purchase the current set up before installing the JB4 would be:

VRSF Catless DP's
Injen Dual Cone Intake
VRSF 5" or 7" Intercooler
VRSF Chargepipe
Blow Off Valve

Am I missing anything major besides an Exhaust?
Do I have to upgrade other parts in order to handle all of this like spark plugs?

Any advice would help. Thanks!

[brewnami]

I think Tial is the quietest. I have that one and you can drive around normally without really hearing it. Sounds nice when you get into it too.

As for the intercooler, the bumper modification for any core over 5" is very simple. Its just the plastic radiator shrouding that needs to be cut, though I believe VRSF just made a 5" stepped core which I'm pretty sure doesn't require modification. I would contact Tiago to be sure.

[Jeff@TopGearSolutions]

1) Tial is the quietest

2) 5" is fine for most street applications but if you are ok with cutting the bumper shroud then go 7" as it's the same price and has less tendency to heat soak. 7" is more ideal for track or hot climates. Since you said you don't want to cut then the 5" is for you.

3) Spark plugs need to be changed when adding a tune

[09bmw335]

Thanks for the reply Jeff, I will probably get the 7" so I dont have to upgrade down the line. Heard its a simple modification to the bumper.

What type of Sparkplugs do most people use with a tune?

Originally Posted by Jeff@TopGearSolutions

1) Tial is the quietest

2) 5" is fine for most street applications but if you are ok with cutting the bumper shroud then go 7" as it's the same price and has less tendency to heat soak. 7" is more ideal for track or hot climates. Since you said you don't want to cut then the 5" is for you.

3) Spark plugs need to be changed when adding a tune

[mike@x-ph.com]

Originally Posted by 09bmw335

Thanks for the reply Jeff, I will probably get the 7" so I dont have to upgrade down the line. Heard its a simple modification to the bumper.

What type of Sparkplugs do most people use with a tune?

Agree with everything Jeff said.
As for the spark plugs, just use OEM