How To: Short Can Exhaust. - Kawasaki Ninja 250R Forum
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post #1 of 34 (permalink) Old 07-22-2008, 08:43 PM Thread Starter
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How To: Short Can Exhaust.

Sticky Please.



Parts:
Stock exhaust
fiberglass pack for motorcycle exhaust
1.5 ” Perforated tube



Optional parts
1 1/2 to 1 3/4 pipe adapter


Tools:
Hacksaw
1 1/2 metal drill cutter (pictured)
welder - take to a muffler shop or a professional
step by step.
1) remove stock can from bike when it is not hot.
2) remove beauty cap
3) saw off aluminum can at the edge of the can.

4) take drill cutter and cut center out.

5) cut the backing plate along the perforated dots for easy cutting.

6) attach adapter and weld in place.

7) take aluminum can and cut to desired length. Measure twice cut once!

8 ) remove cat.

9) cut perforated tube to size.

10) cut fiberglass to size and roll onto perf tube really tight. The trick is to keep that extended part of the end cap to keep the fiber glass secured.

11)Peice together and weld it up.

Thats all there is to it.
I cannot take all the credit for this modification. I may be the first to cut the can to a smaller size, but there have been others who cut the can and gutted the insides before me. Please give credits to redrider from newninja.com that made this mod look so easy. And to HKr1 from kawiforums for giving me the initial idea to have a shorter exhaust.

Go Go Kawasaki Go!
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post #2 of 34 (permalink) Old 07-22-2008, 09:00 PM
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What did you use to weld the end back to the aluminum can?
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post #3 of 34 (permalink) Old 07-22-2008, 09:14 PM Thread Starter
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i suggest having a professional do the work.

BUT.... i have tried using a muffler welding putty and JBWeld.

welding putty sucked balls and didnt do shit. Thats the reason some of the fiberglass hasblack crap on it.

JBWeld is holding up very well. I havenothad any problems as of yet.

I WOULD STILL RECOMMEND HAVING A PRO DO IT!

Go Go Kawasaki Go!
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post #4 of 34 (permalink) Old 07-22-2008, 10:03 PM
 
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Also me and chris are going to try and make the stock can sound good by gutting it and using a straight pipe rapped in fiber glass we'll let you guys know how good it works with video for the people who like the stock look but with a sexy deep aftermarket sound

Last edited by 91stealthtt; 07-22-2008 at 10:05 PM. Reason: im an idiot
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post #5 of 34 (permalink) Old 07-22-2008, 10:22 PM
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I was thinking JB weld also.
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post #6 of 34 (permalink) Old 07-31-2008, 10:51 PM
 
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do you have to buy the fiberglass pack and perforated tube or can you use whats in the exhaust.
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post #7 of 34 (permalink) Old 07-31-2008, 10:55 PM
 
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Quote:
Originally Posted by Scott250R View Post
do you have to buy the fiberglass pack and perforated tube or can you use whats in the exhaust.
I would recommend using the fiberglass because it quiets the can a lot. If you didn't have any fiberglass you'd probably set off a few car alarms if you know what I mean. You really cant use whats in the can because there is 4 different tubes in one can...its weird don't ask...anyways just got a muffler shop and I'm sure you can buy a 1.5" perforated tube pretty cheap. No more than $15
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post #8 of 34 (permalink) Old 07-31-2008, 10:58 PM
 
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how much does the fiberglass cost
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post #9 of 34 (permalink) Old 07-31-2008, 11:02 PM
 
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Quote:
Originally Posted by Scott250R View Post
how much does the fiberglass cost
its pretty cheap too....if your a real cheap ass you would just steal some insulation from your attic you'll never miss it.

P.S. This is Christian, the monster bike rider. Post an Intro about yourself for the other members too when you have a chance.
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post #10 of 34 (permalink) Old 07-31-2008, 11:08 PM
 
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where did vtec44 get the zx-2r stickers at
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