Xcede Exhaust dyno

[Sherwin@xcede]

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324.8hp = 242kw on the wheels.

No software as can be seen by the car only revving to 8000rpm.

Stock M3's make between 280-290hp on this dyno. Here's the power when I did have the stage 2 remap & exhaust, before I got the latest anti-tuning firmware.

338hp = 252kw on wheels. The remap makes a decent difference in power, especially up top as we trim the fuelling (gets rich with full xhaust), add some advance at high rpm, & do the VANOS tuning. Also you can clearly see the chipped car revs higher.

 

[Twinz]

Sherwin some questions:
Roughly a 35Hp gain on a full Xcede exhaust?
Is this fully kittyless with X pipe?

Those are good gains :thumbs:

 

[Sherwin@xcede]

Sherwin some questions:
Roughly a 35Hp gain on a full Xcede exhaust?
Is this fully kittyless with X pipe?

Those are good gains :thumbs:

Yeah it's a fully catless X-pipe & rear backboxes, all custom built.

At WRC on the same day the car made 232kw. There have been 3 cars dyno'd with full Akaprovich on the same dyno. They made between 214 & 216kw on the wheels. The lesson to be learnt is that overseas exhausts costing over R50K might not necessarily better than a locally made custom exhaust with a diameter tuned to get best results for our altitude, fuel, etc.

Working on the anti-tuning next week, hope to get to 245kw at WRC & 255kw (342hp) at KAR.

 

[tcal69]

I love my akra exhaust:rollsmile:

 

[Dean ///M]

I love my akra exhaust:rollsmile:

How much lighter is it? compared to the stock system. Would you also know the wall thickness of the tubing?

 

[ASH M]

I hate this anti-tuning shit :nonono: Hopefully BMW doesn't load it onto my car.

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Btw good figures as always from Xcede :bravo:

 

[anile8-zn]

anti tuning has already been defeated ash!!

 

[Sherwin@xcede]

anti tuning has already been defeated ash!!

Yeah we do all the 135/335's with anti-tuning & we did a whole heap of V8 M3's with anti-tuning as well. I'm talking a brand new anti-tuning firmware released in the last month. quite a bitch. But I'm almost done with it. have it on my own car so we can do the R&D on my car so customers get peace of mind when we lick it.

 

[anile8-zn]

anti tuning has already been defeated ash!!

Yeah we do all the 135/335's with anti-tuning & we did a whole heap of V8 M3's with anti-tuning as well. I'm talking a brand new anti-tuning firmware released in the last month. quite a bitch. But I'm almost done with it. have it on my own car so we can do the R&D on my car so customers get peace of mind when we lick it.

i am reffering to the brand new anti tuning aswell , its done ,loading file on v8 this weekend

 

[Sherwin@xcede]

anti tuning has already been defeated ash!!

Yeah we do all the 135/335's with anti-tuning & we did a whole heap of V8 M3's with anti-tuning as well. I'm talking a brand new anti-tuning firmware released in the last month. quite a bitch. But I'm almost done with it. have it on my own car so we can do the R&D on my car so customers get peace of mind when we lick it.

i am reffering to the brand new anti tuning aswell , its done ,loading file on v8 this weekend

Ok good, only as matter of time. I am writing a file to my car today & might dyno this afternoon if I get time. So we also locked and loaded, ready to rumble with anti-tuning.

 

[anile8-zn]

cool !

 

[ASH M]

:bravo: Now i'm relieved. The thought of driving a stocker around :nonono:

 

[tcal69]

I love my akra exhaust:rollsmile:

How much lighter is it? compared to the stock system. Would you also know the wall thickness of the tubing?

Is about 20+ kg weight saving, not that I will feel the difference haha, but at least is approved by BMW now:thumbs:

 

[ASH M]

I love my akra exhaust:rollsmile:

How much lighter is it? compared to the stock system. Would you also know the wall thickness of the tubing?

Is about 20+ kg weight saving, not that I will feel the difference haha, but at least is approved by BMW now:thumbs:

The Akra is a gem :thumbs:, however isn't it a bit too quite for a after-market exhaust? Personally i'll have the high flow cats removed to release some extra ponies, think BMW will notice or mind if found?

 

[tcal69]

Akra is on the quiet side, but it will roar and rumble if needs to be!

On the NA, I don't think removal of the cats will be a huge difference, maybe on the SC tho...

 

[DubaiRacer]

HI Sherwin....

Nice gains...what is the estimated cost of the excede full exhaust??

 

[M3_FTW]

Akra is on the quiet side, but it will roar and rumble if needs to be!

On the NA, I don't think removal of the cats will be a huge difference, maybe on the SC tho...

Wrong. The biggest gains you get on the V8 M3 is from removing the primary and secondary cats.

 

[Dean ///M]

Akra is on the quiet side, but it will roar and rumble if needs to be!

On the NA, I don't think removal of the cats will be a huge difference, maybe on the SC tho...

Wrong. The biggest gains you get on the V8 M3 is from removing the primary and secondary cats.

I lost 11whp on my car after decat but before run was done 1year apart but still same dyno and 11whp is a lot of pwr. Did anyone do a before and after on the same day?

 

[M3_FTW]

Akra is on the quiet side, but it will roar and rumble if needs to be!

On the NA, I don't think removal of the cats will be a huge difference, maybe on the SC tho...

Wrong. The biggest gains you get on the V8 M3 is from removing the primary and secondary cats.

I lost 11whp on my car after decat but before run was done 1year apart but still same dyno and 11whp is a lot of pwr. Did anyone do a before and after on the same day?

I did on my M3. Good gains were there from just the decat software adds the final touch

 

[///MOS1TED]

Is this SOVs car?

Very good gains.

:thumbs: