Cheap exhaust mod

[OB_Malcolm]

This mod was cheched on a Dyno so it works. You need a 1/2" drill bits that is long(10").
When you take off your exhaust canisters, you will see inside a plate with a hole in the top of it(where the exhaust flows. With the 1/2" drill bit put as many holes as you can get in this plate. I got 18 in each side.
This mod makes EXACTLY the same power increase as buying slip ons and it sounds much better too..

 

[OB_ducmanic]

How many HP?
ducmanic
Los Angeles

 

[OB_Malcolm]

I was let to believe 2hp. Not bad for $12

 

[OB_BullDog]

Would you not have to adjust your EFI mapping? or is this too minor or a change?

 

[OB_Malcolm]

Just DRILL and Drive!!

 

[Guest]

I did it, sounds much better, already had the bit,Cost 0$.

 

[OB_Britabuser]

Which end of the can are we talking about drilling? How can you get 18 holes of 1/2" dia in it? Was that a typo or real #/

Thanks

 

[Guest]

Well done Malcom. The best part is the cops will think they're the stock cans. Well Done!!

 

[OB_Malcolm]

To Britabuser> Take the can off your bike, look inside (behind where the 3 bolts hold the can to the pipe) and you see the plate that you will have to drill.

PS I would LOVE to take the credit for this one but... it was given to me by Brock Davidson of BDE. So if you ever get the chance thank him.

 

[OB_Britabuser]

I have done this on other bikes I have owned and the sound has always improved but on one it leaned it out too much and I had to rejet/shim needles. How lean does this mod make the "buser? Any off idle hesitation or not a noticeable change?

Thanks for the info - always looking for more sound with small dollars!

 

[Guest]

.

 

[Guest]

Hyper,
I hope this answers some of your questions.

 

[OB_KawAbuser]

I've heard this mod, it sounds a little anemic when the revs climb. Not bad at idle and for free.

Why bother, buy a full system and quit kidding your self. The weight loss is a great plus with the full systems. There are some inexpensive full systems, you don't have to spend $1800 for a Yosh full Ti system to loose weight.

Two Brothers makes some nice sounding slipons, they sound real good at all rpm.

 

[OB_THE MOTORHEAD]

exactly;the weight=hp.

 

[OB_Hyper]

thanks, Teamhayabusa. could not find this info with the initial search. I think I will do this mod until I purchase the TURBO!