Before I pose the question, I know the simple answer is to go and check my header pipes, BUT I don't actually get my grubby paws on the bike until spring. And I want to know the answer now!
So, does the UK version of the ZRX1200 have a cat or not?
I ask because of the following, seemingly contradictory, information: - The on-line version of the workshop manual states that the power outut of the catalysed engines in 78.2kW (106.2PS) while the non-catalysed engines put out 90kW (122PS) - The 2003 Kawasaki range brochure states that the UK models have a power output of 122PS. (i.e. non-catalysed) . BUT - all the threads I have read on the subject, state that the 01- to 04 ZRX's (with the black headers) have a catalytic converter in the collector box.
The power difference, due to increased restriction in the exhaust, I can understand. And all will become clear(er), I hope, once I can actually eyeball the headers, but until then, can anyone state which headers were standard UK fitment? KHI-M078 (non-cat) or KHI-M077 (with cat)?
The best thing to do with either type of header is to put them in the bin if it's optimum power you want. Being double skinned they have a very narrow internal Bore and this is the main 'restriction' on the bike. A decent system suitably set up will release around 20 bhp or so.
Asking for forgiveness is easier than begging for permission
A full after-market exhaust with a jet kit will certainly add a noticeable amount of power, and lower the weight of the bike by about 20 lbs as well. Stockers weigh about 30 lbs and most after-market SS pipes weigh in the order of 11 to 12 lbs.
Silver REXes are so subtle - they just slide under the target's radar, then WHAM! they're toast!
03 ZRX 1200R, Akra SS/Ti, Ivan's jets, K&N pods, Ted's advancer, chainguard and storage box, Chrispy's bar end mirrors, rearset plates, fork brace, 'n some other stuff. . . , 84 KZ1100R, 82 GPz550
Hi, have junked matt black oe headers for stainless, combined with Ivans jet/needle kit promises wheelie in 2nd gear ,yeh right. Going to Valencia for GP accelerated slightly more than normal,wheel 2" off bloddy hell, does what it said on tin!
T140 bit tuned, Z1000st where I learnt to ride rex's!
Kwikasfooki: Hi everyone, I'm Alan a roofer from Stourbridge.
May 22, 2014 5:42:28 GMT
Kwikasfooki: Just got back into biking after having my Bandit stolen. Maybe a good thing because i wouldnt have bought my ZRX1100C1
May 22, 2014 5:44:19 GMT
Kwikasfooki: what upgrades should i take to improve my zrx1100c1 or should i just buy a later 1200? any advice would be gratly appreciated
May 22, 2014 6:04:12 GMT
shyted: Hello,Dave here, just bought a mint fire cracker red 1100c4.It's my second ZRX,and not a day to soon.
Sept 29, 2014 6:00:56 GMT
sparkyt: Hi all ! I'm tony electrician from London . My ride is a Rex 1200r with a few modifications
Oct 17, 2014 15:40:39 GMT
gerbil: hiya i'm Kevin from Stourport loving my 97 rex
Dec 29, 2014 13:48:28 GMT
dodgydal: Hi all, just bought a ZXR 1100, don't know what the C1,2,3,4 is or means can anyone enlighten me ?
May 8, 2016 13:57:29 GMT
mickkyc: hi im mick and have a zrx1200r 2002 model i love this bike..Can anybody tell me if these have a built in immobiliser on the ignition thanks guys also do you ever meet up ?
Jul 26, 2016 21:57:49 GMT
cowboy: Hello 🐑🐑🐑 from Bernard been missing for a while !! Even forgotten my name and pass word lol hope all you guys and girls are ok xxx
Jan 28, 2017 21:36:19 GMT
drack1: Hi, Question, I am rebuilding my ZRX1100-C2 I have just installed new bearings to the swing arm. Looking at the diagram in the manual the diagram I believe is wrong.
Jan 29, 2017 2:48:12 GMT
drack1: the diagram shows The top hat spacer fitting to be on the left. But it will only fits on the right side running throught the seal and upto the large ball race bearing. Anyone else found this issue. ?
Jan 29, 2017 2:54:23 GMT
drack1: dodgydal: The C1,C2,C3,C4 Relates to the bikes model year. Eg; C1 = 1997 C2=1998 C3=1999 C4=2000
Jan 29, 2017 19:50:31 GMT
zrxpilot: Aye up anyone on, just joined,
Feb 28, 2017 19:06:41 GMT
bigsteve: hi all, im steve, from farnham surrey, got a burgandy 1100c2
Mar 4, 2017 19:18:53 GMT
floydzrx: Hi Floyd from Manchester just joined. I have a 98 C2 1100
Jun 27, 2017 11:53:33 GMT
murphyzrx: HI ..IS THERE ANY BODY THERE??
Aug 26, 2018 14:21:45 GMT
bikerpaul: Hi Folks ....i've just joined i'm in the Scottish Highlands riding a zrx12r 2001
Oct 14, 2018 10:46:27 GMT
mickkyc: hi lads and lasses I'm mick from bracknell I've just got myself an 02 1200R i love these bikes can't wait to get it on the road it needs a couple of bits as it was stolen and recovered (ba....ds). Anyway take care. All the best.Mick
Sept 20, 2021 20:25:29 GMT