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Laloosh is claiming that DI doesn't make big power up top because of fuel limitations. This is contradicted by rich AFRs of high HP dyno cars. I too have pushed the MS3 DI setup to ridiculous boost...

COBB AP with original packaging. Works flawlessly. $750 shipped

http://www.PorscheBoost.com/images/imported/2012/02/1d9f8315-1.jpg

The FMIC is $825 shipped. This uses the stock couplers so...

Exhaust is off and sitting at Benchmade waiting for its new owner. Someone make me an offer.

All,
I am getting out of my car and will be parting it out. The first to go is my beautiful fully custom 3" stainless steel exhaust made by Benchmade Proper. www.benchmadeproper.com I bought this...

NOx emissions result from high temps in the combustion chamber. Diluting with EGR reduces temps. I would speculate that DI mitigates the high temps b/c of the cooling effect of the atomization at...

I think you're misunderstanding me. BMW does recirculate the exhaust gas by overlapping the intake and exhaust cams. Cobb eliminates this overlap to improve response but the side effect is that egr...

So I was discussing some things with Rob from Cobb the other day and one thing I asked about was EGR. My old car had an egr valve and piped it right into the intake manifold.

For those that...

I have an HPF b/c I got tired of waiting for the ETS 5". If I hadn't cut up my shroud I'd swap my $1000 HPF for that ets 5". I don't think the size matters that much and I'd prefer the bigger...

Anxious to see the fuel system pushed. Welcome.

Whatever. I want better flow/less restriction but would like to have a conversation with my wife without yelling in the car under normal cruising. Check my thread on side branch resonators. It is...

Check you're diverter valves/BOV or throttle body connection to charge pipe.

The biggest issue with this exhaust is going to be the drone. Any promotional video that doesn't have an interior shot of the car cruising in 4th, 5th, or 6th btw 2K and 2.6K RPM is a waste of time.

I am curious as to why Jeremy maxed out at 13.5 psi. Oh wait. No I'm not.

I would assume that the advance is ramped up and the he's trying to keep it cool with 11.2 afr.

deleted.

Hit the 10s this friday!

No. I'm fbo minus downpipes. Still running the stockers. There are few options for the xi and the pia of install makes me hesitant. Also, my car is a coupe and that's less than convenient with two...

I'll agree that the catback portion isn't worth much but I got a big result going from the stock exhaust to my setup which eliminates the second set of cats. IMO an exhaust on this car is worth it...

Just reporting back. This mod makes the exhaust completely civilized on the daily. I love it. My friends have told me that it actually makes the tone at wot deeper and less raspy. Highly recommend.

I disagree with the characterization of a 13+ AFR on double boost as "safe." I want it in the low 12s.

I considered that but everything I read indicated it would have no effect. The exhaust is already 3" and the branch is very close to the end. In any case, if it is detrimental, It can't be much.

A couple of months ago I got a custom made aftermarket exhaust. It's a BEAUTIFUL 3" tig welded stainless steel quad tip exhaust made by a company in Elkridge, MD. called Benchmade Proper. Pix...

THey're just starting out. They have years of experience at other shops but got tired of dishonest practices at their last one. It's just two guys and a bay working hard to make quality stuff. I...

xclone,
Check out this quad tip dual exhaust for a 535i
http://www.facebook.com/media/set/?set=a.163106567117327.37891.100002539537108&type=1

sick.

This company did mine on my 335xi. They...

what is MHP and OE?

There's a private rental at MIR on 18 Nov. I guarantee it's the best prepped track you've ever seen. Come down.