These are the crazy modifications done to my bike,  . It is crazy, but I'm still doing it as I am trying to be creative here and I'm quite a cheap runner [ still no income yet ]. These crazy mods have been on my bike since Dec 2002, but I'm not quite sure to post it. Until today [1 Mar 2003 ], I'm just writing them down here for fun. Try at your own risk.

SELF MADE K&N AIR FILTER

Have you ever opened the air box? There's an air filter there looks like a hat. The manual says, change it every 12000km. As a frequent long distance rider [4000km a month]. That's a big problem for me! Mine was already in the most terrible shape with tears here and there.

I've read about K&N filters and found out that it was quite impossible to find a kit for the zxr. I was not thinking about increase in performance, but I like the fact that the K&N filter could be used for a life time! Save my pennies a little bit.

So what did I do? I bought a K&N car air filter as big as the OEM air filter, cut it out a little bit, modified it to fit inside the air box and reassemble it all back. What I get is an air filter that lasts for a lifetime. I only had to think about regular cleaning at the intervals of 12000km also. No need to buy OEM filters anymore [ RM80 ]!

What did happen after that? Of course I saved some money and I think my bike had a little increase in power. Just as the K&N company claimed. I could feel the power. Now I could forget about air filter replacement and I'm quite happy with that,  .

Here are some pictures.

If you decide to make one for your bike, please tell me ok! I would be happy to help! Tell me so I could know that this is not quite a crazy idea after all. 

Addtional pictures and info [16 May 2003]:-

Some friends of mine asked for more info doing this K&N filter. Here in Malaysia there are small cone filters for single pistons carbs. The air intake is round with some diameter. So it is just the matter of buying the right filter diameter and connecting it. A friend of mine succeed this on his Aprillia 125.

But the thing I'm doing here is for multi pistons. For the questions from my friends, I hope these pictures could answer.

Some precautions :-

-Make sure the air filter doesnt make contact with water.
-Follow the instructions of K&N installation as in the K&N website.
-If their are symptoms of lean mixture, you should do some carbs adjusting (usually no problem will occure).

BLITZ CAR MUFFLER

This one is categorized as crazy, but not for me. It's not even experimental. I've been doing some reading and research about exhaust and found out that the muffler doesn't anyhow affect the engine. Its main purpose is only for noise reduction and some heat transfer. It also doesn't increase horsepower in anyway. A person with dyno machine experience will know what I'm trying to say. I also found out it doesn't have anything to do with back pressure like 2 strokers exhaust.

Some of my fellow bikers also installed car mufflers on their bikes. As far as I know they had no problems with it. It is suppose to be no problem with these mufflers as the zxr is a 4 stroker also. Just like cars. They were happy with their mufflers. They took aftermarket loud mufflers.

So after several months on standards I decided to go for car mufflers. I tried some shops but they couldn't do it because they didn't have the bracket to weld the car muffler to the OEM exhaust. At the third shop I decided to weld the muffler directly on the exhaust, a little trouble for me to service the exhaust next time.

I had the chance to try every muffler in the shop. I tried HKS, Mugen, Matola, Zico, Rimus, Monster all about 10 mufflers. Then my ears fell in love with the Blitz muffler. The guy said he wasn't suprised to know I liked that muffler, it was the best and most expensive muffler [ for 2.5 inches ] they had. It sound very loud and the guy said Satria and Perdana uses Blitz. I really like the F1 sound the bike produces, with the Blitz I fell terrific!

Here are some pictures of the guys doing the muffler,  .