I don't recommend this, and something tells me that without making some other 
modifications, that reducing back pressure could potentially harm your engine. 
That said, here's a video where a guy removed the back plates for a CB 250. It 
sounds cheesy to me but then I'm also a Harley owner. Watch "cb250 Nighthawk 
Exhaust With and Without Baffles" on YouTube
https://youtu.be/c5NAGzJE_1w

Sent from my Verizon Wireless 4G LTE smartphone

-------- Original message --------
From: Vince <[email protected]> 
Date: 3/14/2016  11:17 AM  (GMT-05:00) 
To: Nighthawk Motorcycle Lovers! <[email protected]> 
Subject: [Nighthawk Lovers] Re: Nighthawk 550 exhaust mods. Possibilities? 

I'm don't have the bike here with me at the moment, but I was just thinking, I 
don't believe there are any rivets at the end of the pipes on the 550.  The 
baffles are literally welded in, so unless I'm mistaken, which is quite 
possible:) there is no need to have rivets.
If I'm right, and there aren't rivets, can I just drill holes into the back of 
the baffling cover?  If so, does anyone have an idea if doing that would 
somehow mess up the backpressure/air mixture, etc. and have and effect on how 
the bike runs?

On Friday, March 11, 2016 at 11:47:29 AM UTC-5, Vince wrote:I have an 83 550.  
I love everything about the bike with one exception.  I wish it wasn't so darn 
quiet.  I don't need it to be as loud as a Harley, but I honestly can't hear 
the engine above the wind noise in my full face helmet once I get above 50 mph. 
 I can see that the baffles are welded in.  Other than changing the system to a 
4 into 1 header or something like that, is there any way to modify the stock 
exhaust?  I only paid $900 for the bike, so I'm not going to spend hundreds on 
another exhaust.  Thanks



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