Otters Pocket
Active member
Have seen a couple of posts on this, but none recently and not ones that have been what I'm after, so I'm going to mod a stock can myself and see what the result is like.
So I saw this mod which looks really good at turning the stock exhaust into pretty much a straight through pipe, but for me it's a bit too on the raucous side and I want a more subtle tone change
So the stock exhaust looks like this inside:
The gas flow is sent into the middle chamber, fills the area, passes into the right chamber, fills and then through a pipe underneath the short upper pipe that's visible into the left chamber and then finally into the long pipe all the way to the outlet.
Not great artistry but gives you the idea.
So in the video, he guts the lot and makes a straight through pipe. I've also seen a video where a guy cuts the right most outlet pipe, but the effect is minimal, since the short pipe is still quite a restriction and leaving the other pipes open still allows a lot of the gases to be sent the long way round.
My thinking is it will be better to block that short pipe in the right panel, then cut the section of outlet pipe, so the gases only travel into that middle section before filling the chamber and then going straight out. This isn't far off being straight through, but the fact the gas fills the central chamber allows some slowing of the gasses speed and disturbs the flow enough to reduce volume to (hopefully) a nice level.
This also has the benefit of only needing that small middle section to be opened up and a couple of cuts with a reciprocating saw to knock out the central piece. Block the small pipe off and also the section now open to the left chamber and the flow is straight through to the outlet.
Found a stock Tracer exhaust on ebay for a nice cheap price so I'll not be hacking up my original (if it's a tad too loud can still use that for MOT's etc) and will get the angle grinder and welder out when it arrives and let you know how it goes. As I say, hopefully it will give a much nicer deeper tone but not be anti-social or draw attention from the police etc.
So I saw this mod which looks really good at turning the stock exhaust into pretty much a straight through pipe, but for me it's a bit too on the raucous side and I want a more subtle tone change
So the stock exhaust looks like this inside:
The gas flow is sent into the middle chamber, fills the area, passes into the right chamber, fills and then through a pipe underneath the short upper pipe that's visible into the left chamber and then finally into the long pipe all the way to the outlet.
Not great artistry but gives you the idea.
So in the video, he guts the lot and makes a straight through pipe. I've also seen a video where a guy cuts the right most outlet pipe, but the effect is minimal, since the short pipe is still quite a restriction and leaving the other pipes open still allows a lot of the gases to be sent the long way round.
My thinking is it will be better to block that short pipe in the right panel, then cut the section of outlet pipe, so the gases only travel into that middle section before filling the chamber and then going straight out. This isn't far off being straight through, but the fact the gas fills the central chamber allows some slowing of the gasses speed and disturbs the flow enough to reduce volume to (hopefully) a nice level.
This also has the benefit of only needing that small middle section to be opened up and a couple of cuts with a reciprocating saw to knock out the central piece. Block the small pipe off and also the section now open to the left chamber and the flow is straight through to the outlet.
Found a stock Tracer exhaust on ebay for a nice cheap price so I'll not be hacking up my original (if it's a tad too loud can still use that for MOT's etc) and will get the angle grinder and welder out when it arrives and let you know how it goes. As I say, hopefully it will give a much nicer deeper tone but not be anti-social or draw attention from the police etc.
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