Want to replace the K1 exhaust - but with what ?

[andyvvc]

The K1 that i run on the 350 is a shade too loud now, especially as next door are expecting a little one soon ! I really dont think its ideal for me to be starting the car and causing seismic shockwaves when there a little person trying to sleep next door

 

 

I'd like to get hold of a replacement rear section (Y pipe back) to replace the K1. I have the UPRATED Y pipe that ESR were selling - so im not too sure what will fit that size Y pipe properly?

 

I want an exhaust back section that is:

 

1 - twin rear pipes

2 - not too loud at all at moderate speeds/start up

3 - sounds quite loud and supercar-esque at WOT/higher revs and when the throttle is 'blipped'

4 - maybe one with blue-flame style tips?

 

Anyone (or maybe any of the traders) got any suggestions?

 

Whatever i order needs to fit the uprated Y pipe nicely And it must not roar like a beast at 1,500rpm cold start like the K1 does lol

I'd also rather not use bungs - so the back section should be acceptable at start up, and only roar when a fair bit of throttle is applied

[clarkie34]

The 4 points you have made mate have described the 5Zigen pro racer.

 

Its not loud when normal driving,but give it some and the tone changes especially once you get above 3,000 rpm.

 

Here is a pic of mine.

 

[Fletch]

Yeah the zigen sounds really nice. ESR Y-pipes were direct replacements of the OEM pipe so any Y-pipe back system will fit it

 

Fletch

[Adam@Z1auto.com]

Greddy Spectrum Elite - just a rear muffler replacement, bolts up to stock midpipe

 

 

Quite reasoable too at $640US shipped (we took all Greddy's remaining US stock and have 1 left now)

[Ekona]

The K1 that i run on the 350 is a shade too loud now, especially as next door are expecting a little one soon ! I really dont think its ideal for me to be starting the car and causing seismic shockwaves when there a little person trying to sleep next door

Even more reason to keep the K1, as that little bundle of joy will be waking you up at all hours when it starts crying so you'll simply be getting your own back

[sunset350z]

A cheaper option may be the scorpion.

[lilsheepshagga_turbo]

oooooooooo the greddy looks nice...

[Toon Chris]

Blimey Clarkie, how do you keep is so shiny and clean? Mine looks like it has been permanently powder coated with filth

[andyvvc]

Thanks all! Quick Q tho - i thought the ESR Y pipe was a slightly wider pipe? Or am i worng here? I know it gives better flow than the normal pipe.

 

 

That Greddy looks sweet ! Any idea if this will fit against the remainder of a K1 system though? (K1 splits off to the centre pipe at the same point as the Greedy would join it as best i can tell) ie i would keep the Y pipe, keep the centre pipe of the K1, and then fit the Greddy to that...?

 

EDIT: Actually, just realised i cant have this - cos the K1 has a split out to the right side from its centre section iirc for the right side can

 

ANOTHER EDIT: I could just buy a new mid pipe too to connect from the Y pipe and therefore sell the K1 complete afterwards...? How much would the Greddy and a mid pipe be from the US shipped? Is the Greddy loud-ish on WOT but more subtle than the K1 at town speeds? I want more noise than OEM !

[Adam@Z1auto.com]

I can't comment on a K1 as I have no idea who or what it is...not something sold in the US, or if it is, it's another name

 

As far as midpipes, none are sold separately for the Z. Simply reuse your stock unit if going with the Greddy

 

Lots of options out there for exhausts, budget is the primary thing, as they can range widely. The Greddy came to me as something that matched everything you seemed to be after.

 

For another great system, the Fujitsubo stainless would easily fit the bill - sounds terrific, hands down the best weld quality of any stainless system on the market at any price, quiet at idle, no drone, sounds nice and exotic at WOT, bolts to stock or aftermarket Y pipe (Fujitsubo is a muffler/midpipe). Goes for $1499 shipped to the UK. Y pipe sold separately ($670)

 

Fuji stainless that once resided on my car

 

 

soundclips I am sure are on youtube - I never took any with the stainless setup on

 

The 5Zigen is another great option - a lot more in your face looking and sounding vs the others I've mentioned. We're a 5Zigen dealer as well, though admittedly, that system is expensive for what it is

[andyvvc]

Thanks Adam. I sadly dont have any of the old exhaust (OEM) parts. They were blowing hence the upgrade to the K1 system and new Y pipe.

 

Basically, the Y pipe drops into a centre section, which splits off at its end into two channels. Looks to me like the 5Zigen Pro Racer will fit this centre section, but the 'cannister' style Greedy and other most likely will not ?

 

Its never easy is it

[andyvvc]

 

This should be a pic/link to the rear and mid section of the K1 - anything that will fit this Adam? Im really looking for twin cans i guess that are muffled internally and *dont* need bungs to make then sensible at town speeds. The K1 cans seem to have no mufflinh/internal baffles at all [/img]

[Ekona]

I've got the K1, and to confirm you'd re-use the Y-pipe that came with the kit, but you would need to source an OEM mid-pipe from somewhere to use any other aftermarket exhaust, as the K1 wouldn't fit with anything else (at least, not without bodging it somehow).

 

@Andy: A simpler option might be to get the existing silencer within the K1 cut out and a much larger one put in instead. The one that's on there is tiny and really does nothing to quell the volume, but a larger unit should do the job for about a 5th of the cost of a new exhaust.

[Stew]

I was thinking custon exhaust make to bang in an extra box or change the existing one.

 

Saves cash as Dan says.

[andyvvc]

Ekona - i assume you are referring to the slightly larger section to the far left of the pic? Any idea if theres anyone reliable in the Midlands/Nottingham area that might be able to cut out and replace said baffle with a bigger unit? Maybe i can give some place a call and chat to them about getting this work done?

 

 

Im cautious about getting it cut out and then having a fecked system which starts to blow etc

 

The K1 (if i can quieten it a fair bit!) can stay on the car

 

 

Thanks guys !

[Ekona]

Ekona - i assume you are referring to the slightly larger section to the far left of the pic? Any idea if theres anyone reliable in the Midlands/Nottingham area that might be able to cut out and replace said baffle with a bigger unit? Maybe i can give some place a call and chat to them about getting this work done?

 

 

Im cautious about getting it cut out and then having a fecked system which starts to blow etc

 

The K1 (if i can quieten it a fair bit!) can stay on the car

 

 

Thanks guys !

Yup, that's the bit. Any exhaust place worth their salt would be able to do it for you, no need to go anywhere too specialist and over the top. In all honesty if you can get a mate who can weld then it's a proper DIY job: You could even put the silencer on flanges so you can change it back out if you find you want the noise back or need to go even quieter.

[Stew]

ave a look for custom exhaust fabricators in your area.

 

There was someone (Can't remember who though) that got it done I'm sure.

[andyvvc]

I'm gonna try giving "Gran Fabrications" a call on Monday. They are local to me and it sounds like the chap who runs it knows what he is doing (found a link from some classic car sites and bike sites)

 

I'll post back and let everyone know what happens. Cheers for the advice !

[Adam@Z1auto.com]

nothing from that system will be able to be reused

 

as far as the individual canister systems, they are, by nature, quite loud, and none will feature any meaningful baffling to the

 

fitting a larger resonator/silencer is an idea...problem is the design of that system doesn't really leave any room to work with

[M350ZB]

ave a look for custom exhaust fabricators in your area.

 

There was someone (Can't remember who though) that got it done I'm sure.

 

When i got all my work done to my Zed up at ESR, i intially had the scorpion exhaust put on as this was the only one on the shelf at the time, but since then have gone to a private exhaust fabricator in essex, Hayward and Scott, a really nice bunch of guys and top class work, the exhaust i have now, has blue tips, and sounds . It prob will cost a bit more, but you can get it exactly how you want it, stlye, sound the lot

[Ian]

ave a look for custom exhaust fabricators in your area.

 

There was someone (Can't remember who though) that got it done I'm sure.

 

When i got all my work done to my Zed up at ESR, i intially had the scorpion exhaust put on as this was the only one on the shelf at the time, but since then have gone to a private exhaust fabricator in essex, Hayward and Scott, a really nice bunch of guys and top class work, the exhaust i have now, has blue tips, and sounds . It prob will cost a bit more, but you can get it exactly how you want it, stlye, sound the lot

 

[Adam@Z1auto.com]

H&S does excellent work

[M350ZB]

Cant get any pics right now, round girlfriends, but will get some tom after work

[andyvvc]

Well, i called Gran Fabrications and it seems they (he) only works on his own exhaust systems.

 

So im still looking for a Notts/Derbyshire fabricator to have a look at cutting out and adding a more 'muffled' cannister.

 

Any ideas of who i can try ?

[Stew]

You *could* put the K1 up for sale, see if you have interest and get a price for the guy building an exhaust or buying a new one. OBviously there will be a difference but it might not be huge.....