RawBenz

As some of you know, my brother and I are building an N/A daily beast.

So far it's pumping out 430whp with a tune, filters and exhaust.

Now we are looking to get every bit of power out of it.

Looking at these mods now:

Cargraphic or DPE headers (RHD)

Weistec TCU/Valve Body Upgrade

Weistec Billet Idler Pulley (more hp?)

Weistec Carbon Fiber Driveshaft (good for an N/A application??) I've had one of these on a blown M156, so not sure about throwing one on an N/A. The car is a daily, so worried about excessive cabin noise due to the shaft not having rubbers and it being a one piece.

Money isn't an issue, but keeping it practical for a daily and not buying things that are pointless would be ideal. Want to keep it as a street beast that will run good 1/4 numbers (mid 11's) in full street trim.

Any info would be great on a this setup or one similar to help achieve a street beast and some good 11 second passes.

tfthach13

As far as I know, and from what is gathered from the forums, the only thing on the list that will give you extra HP is the headers.

The rest is for reinforcement and longevity more than anything. You get better shifts with the TCU upgrade for sure, which may or may not equate to better reaction times.

If you browse through the first couple pages of the fastest 1/4 Mile Times sticky, then you'll see the fastest N/A C63 thus far from the forums.

Good luck with your build!

Johnny912

Headers and ROW airboxes...... the airboxes definitely make a difference and they're rather cheap.

You could always go my route and gut the primary cats but to each his own. Im very satisfied with the results from doing that. But if I didn't have 2 other cars, a house, a boat, and a wife LOL I'd get the headers

RawBenz

Already has ROW's. I'm in Australia.
Not going to gut the cats lol. Prefer to get headers.

BLKM3

You will need headers, no cats, x pipe, good tune, high flow filters, and ported heads.

Girard@ACGautomotive

Ported heads will be a nice addition. Where you should also focus is rotational mass reduction.

Lightweight rotors, wheels, etc.

GRP

He has ROW airboxes as standard.

Got to be exhaust next.

Perhaps PM Southways as he has had DPE and IPE header systems and is absolutely on top of his stuff when it comes to performance enhancement.

RawBenz

We've been looking at cargraphic headers.
Nice quality!

DPE and IPE would be the easiest and cheaper option. But for some reason we're drawn to cargraphic after seeing them in person.

mr747

headers and full exhaust with no cats
get weistec ported heads and one of there tunes to suit 8k rpm limit
cf drive shaft
tcu upgrade
light weight brake upgrade

mid 11s all day every day and even lower with weight reduction
good luck

RawBenz

Thanks.
CF Driveshaft might be over kill for an NA. Especially with cabin noise. Car's a daily and my brother wants to keep it as drivable as possible.

Magno507

Has anyone done the TCU upgrade?? only thing which isn't satisfying is the transmission (coming from e92 m3 DCT)

mr747

even with the tcu upgrade it will never be the same as the DCT

Magno507

How is the TCU upgrade compared to stock ?

mr747

you have a different tranny compared to me

there was a little difference but not much

RawBenz

You rekon save the $3500 and don't do the Valve Body/TCU upgrade?

mr747

i say put that 3500 towards the heads
your auto will be fine

ab0bab0i

Weight Reduction.