Drilling Exhaust

[Blkboxster]

yep thats a stupid idea

[fragdude]

I thought so, just had my fingers crossed hoping it wasn't

[Kirk]

I've heard of something along these lines. The idea is to stick a drill bit as far inside the muffler inlet opening and drill some holes through the pipe INSIDE the muffler. If you look at a cross sectional picture of the muffler you'll see that there are a couple resonance chambers the exhaust has to travel through. By drilling holes inside the inlet pipe you allow some exhaust gas to bypass one of the resonance chambers inside the muffler and thus increase the noise level. This is just something I read about, I have no first hand experience hearing the results of this mod so I make no claim as to how well it works...

[j.fro]

I've done the "inside the muffler" hack. The sound is much improved. PM me and I'll give you all the details for doing it.

[nola911]

Originally Posted by j.fro

I've done the "inside the muffler" hack. The sound is much improved. PM me and I'll give you all the details for doing it.

Since this thread is about this very topic, why not share it to the masses of interested followers?

[vipola]

I passed trough all this with my speedbike, changing exhaust for straight pipe, drilling hole, emptying muffler padding.. to get that lound sound.. usually at detriment of performance, even if peoples think there engine is more powerfull when there is more noise, removing backpressure usually make engine less performant.

I think a porsche should be nice and gracious.. not have that hell-loud-mad-straight-pipe-noise..

I like my bike to be the loudest on the road, but I like my porsche to be sexy and gracious.

There is no point of deteriorating a such nice car to make it sound like a F1 (or a corolla with no muffler)..

that's my 2 cent..

[RobZ]

Originally Posted by maxferran

Since this thread is about this very topic, why not share it to the masses of interested followers?

+1. I agree.