KKS Performance Exhaust (Review + Dyno numbers)

VMZ432 · 11-16-2010, 03:42 AM

Hey ryanchua. I got the exhaust in!! Some issues at the moment but the tuner and KKS are working it out. I was able to take it to the track on the weekend and use a manual switch under the car which worked out just fine. Removed the temptation to bust it open on the long drive up at least.

The pipes on mine have coloured heaps differently to yours! The outer pipes are still completely chrome and the inner "open" pipes are a deep gold colour. Crazy! Looks like nothing I've seen before.

Some track vid:

Info on the vid:
http://www.bimmerfest.com/forums/sho...d.php?t=499193

ryanchua · 11-16-2010, 04:03 AM

Sweet man your car sounds like a freaking high rev monster with that VT unit.

Awesome work.

VMZ432 · 11-16-2010, 04:35 AM

Hahaha... yeah it's totally insane. The VT2 kit will be a work of art if it works. Here's a pic of the tips.

Z4-VILLA · 11-16-2010, 10:47 AM

not bad.

Rombbb · 09-16-2018, 05:16 AM

Cool, I have the KKS as well. Was mounted already on the Z4M when I bought it. Glad it was, what crazy sound

If I shift down to third when approaching a tunnel, then step on it, I really have to mind other cars that they don't jump scare and drive into the barrier :-)

Do you know how much Db it makes opened up ?

Was wondering how illegal it is. Or whether it is illegal at all, when the cops say "whoaaa I heard you, that was loud !" and they do a Db test and nothing comes out of it because the pipes are closed up.

My button is out of sight behind the steering wheel. I guess it all depends on whether the coppers know there is valve in the muffles. Unfortunately that's pretty easily noticed for someone looking for it. But even then, when closed it's inside the limits. It's the same as simply screwing a db limiter on the back of a pipe and then having it re-approved. You can also simply remove such a limiter, just like pressing the KKS button (ok, the button is a bit easier but still).

Just worried they will confiscate the whole unit.

The install was approved by the German authorities at the time as the documentation that came with the car confirms.

11-16-2010, 03:42 AM	#23
VMZ432 Fast Everything 9 Rep 98 Posts Drives: Z4MC Join Date: Sep 2010 Location: Australia iTrader: (0)	Hey ryanchua. I got the exhaust in!! Some issues at the moment but the tuner and KKS are working it out. I was able to take it to the track on the weekend and use a manual switch under the car which worked out just fine. Removed the temptation to bust it open on the long drive up at least. The pipes on mine have coloured heaps differently to yours! The outer pipes are still completely chrome and the inner "open" pipes are a deep gold colour. Crazy! Looks like nothing I've seen before. Some track vid: Info on the vid: http://www.bimmerfest.com/forums/sho...d.php?t=499193 __________________ 2006 IBlue BMW Z4 MC - ESS VT2-525 Supercharged, JRZ RS1 suspension (500#F, 600#R) with Vorshlag plates, ST Trophy BBK with CL R6E pads, KKS gated exhaust, TMS sway bars, RE rear camber arms, VT engine mounts, Recaro Pole Position (driver), APR GT wing, Street: Volk G2s and Potenza, Track: Volk TE37SLs and BFG R1s.
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11-16-2010, 04:03 AM	#24
ryanchua Z4MC Sapphire Black 45 Rep 177 Posts Drives: 570-4SL Join Date: Feb 2008 Location: Singapore iTrader: (2)	Sweet man your car sounds like a freaking high rev monster with that VT unit. Awesome work. __________________ Sorely missed: Zeta le Z4M Coupe (2008-2012) BMW.SG - Singapore's Ultimate BMW Enthusiast Community
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11-16-2010, 04:35 AM	#25
VMZ432 Fast Everything 9 Rep 98 Posts Drives: Z4MC Join Date: Sep 2010 Location: Australia iTrader: (0)	Hahaha... yeah it's totally insane. The VT2 kit will be a work of art if it works. Here's a pic of the tips. Attached Images __________________ 2006 IBlue BMW Z4 MC - ESS VT2-525 Supercharged, JRZ RS1 suspension (500#F, 600#R) with Vorshlag plates, ST Trophy BBK with CL R6E pads, KKS gated exhaust, TMS sway bars, RE rear camber arms, VT engine mounts, Recaro Pole Position (driver), APR GT wing, Street: Volk G2s and Potenza, Track: Volk TE37SLs and BFG R1s.
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11-16-2010, 10:47 AM	#26
Z4-VILLA Banned 111 Rep 2,460 Posts Drives: Z4M Hardtop Roadster Join Date: Feb 2009 Location: Classified iTrader: (0)	not bad.
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09-16-2018, 05:16 AM	#27
Rombbb Private 5 Rep 51 Posts Drives: Z4MC Join Date: Jun 2017 Location: Amsterdam iTrader: (0)	Cool, I have the KKS as well. Was mounted already on the Z4M when I bought it. Glad it was, what crazy sound If I shift down to third when approaching a tunnel, then step on it, I really have to mind other cars that they don't jump scare and drive into the barrier :-) Do you know how much Db it makes opened up ? Was wondering how illegal it is. Or whether it is illegal at all, when the cops say "whoaaa I heard you, that was loud !" and they do a Db test and nothing comes out of it because the pipes are closed up. My button is out of sight behind the steering wheel. I guess it all depends on whether the coppers know there is valve in the muffles. Unfortunately that's pretty easily noticed for someone looking for it. But even then, when closed it's inside the limits. It's the same as simply screwing a db limiter on the back of a pipe and then having it re-approved. You can also simply remove such a limiter, just like pressing the KKS button (ok, the button is a bit easier but still). Just worried they will confiscate the whole unit. The install was approved by the German authorities at the time as the documentation that came with the car confirms.
	Appreciate 0 Quote

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