Has anyone found an exhaust solution they absolutely love?
#331
Burning Brakes
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You should consider the Competition/Track silencer as they are true 2.5" dual openings that would mate up with your 2.5" OAP Cats from BC Fabs. Their Triangular silencer is the same size as the Touring silencer, thus will sound a bit more than Touring due to larger pipings w/o drone or resonance (Raspiness). That's the gist I got from Thomas @ Cargraphic.
Last edited by 808c2s; 04-27-2021 at 10:59 PM.
#333
Rennlist Member
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You should consider the Competition/Track silencer as they are true 2.5" dual openings that would mate up with your 2.5" OAP Cats from BC Fabs. Their Triangular silencer is the same size as the Touring silencer, thus will sound a bit more than Touring due to larger pipings w/o drone or resonance (Raspiness). That's the gist I got from Thomas @ Cargraphic.
![hiha](https://rennlist.com/forums/graemlins/roflmao.gif)
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porscheflat6 (04-27-2021)
#334
Burning Brakes
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Originally Posted by Rennolazine
looked at it but my cats mate to stock so the top path is closer to 2 in. Also the touring has more exhaust path collisions and im hoping its quieter valves closed and drones less than the competition. Thats the rationale, i want it silky smooth its still gonna be loud AF![hiha](https://rennlist.com/forums/graemlins/roflmao.gif)
![hiha](https://rennlist.com/forums/graemlins/roflmao.gif)
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#335
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porscheflat6 (04-28-2021)
#336
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LOL. So you were the one ahead of me. When I reached out to them, they said someone just paid for it. But all good, they offered me something else that I am very happy with, simply because I just missed this deal. So, happy ending!
I will do the headers with OEM muffler for now because all I am after is power.
#337
Burning Brakes
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Originally Posted by Rennolazine
larger and smaller path is typical for most of these i think
#338
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StormRune (04-28-2021)
#340
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Where is the valve that controls the OAP small/large pipe flow?
i thought the valve was on the center exhaust, but that is already passed that pipe, which means that removing/plugging the valve unit on the center doesn’t assure valves open throughout the entire system.
i thought the valve was on the center exhaust, but that is already passed that pipe, which means that removing/plugging the valve unit on the center doesn’t assure valves open throughout the entire system.
#341
Rennlist Member
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The valve is on the large dia. side of the back box. When closed, the valve forces the gas to use the small dia. path. When open, the gas takes the path of least resistance which is mostly the wide pipe plus a bit going through the small one because it remains open as well.
#342
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The valve is on the large dia. side of the back box. When closed, the valve forces the gas to use the small dia. path. When open, the gas takes the path of least resistance which is mostly the wide pipe plus a bit going through the small one because it remains open as well.
it seams like only pipes after the valve would be affected, no?
#343
Rennlist Member
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Once the valve is closed the gas can't flow that way. The large path becomes a dead end street so the exhaust is forced through the smaller diameter path which branches off a foot or so before the valve. The exhaust gas will go wherever it can, the valve just takes away one of its options.
#344
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Once the valve is closed the gas can't flow that way. The large path becomes a dead end street so the exhaust is forced through the smaller diameter path which branches off a foot or so before the valve. The exhaust gas will go wherever it can, the valve just takes away one of its options.