OFFICIAL 2017 Civic Si Exhaust Thread

bahndrvr

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I'd say no. It's less extreme than a muffler delete or resonator delete and from what I can tell, those do not throw codes.
No CEL at all, but more involved than jsut doing deletes.

I have the pipe, and the drill press to make my cuts, just don't have the time yet:) I'm hoping I will get the time in the next 3 weeks or so! Honestly can't wait but have to:(
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dr.jamzzz

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No CEL at all, but more involved than jsut doing deletes.

I have the pipe, and the drill press to make my cuts, just don't have the time yet:) I'm hoping I will get the time in the next 3 weeks or so! Honestly can't wait but have to:(
Are you planning to do a full bypass or a partial bypass? And what inch piping do you plan to use?
 

Rikdrt1

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Comon Greddy! When is your exhaust for the 4dr Si coming !.?
 

bahndrvr

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Are you planning to do a full bypass or a partial bypass? And what inch piping do you plan to use?
Sorry just saw this, I have 1 3/4 and a 1” mandrel bent. The plan is to go with the 1” mandrel bent first, and if it’s not too bad or as loud as I want then will go back with the 1 3/4 and make straight pass through with no bending. The smaller 90 degree will work like the Gundo mod not directly a full bypass will only bypass minimal under normal driving and full bypass during hard accel. The 1 3/4 will be straight through and be more of the ukmod and will be louder at all times but extremely loud under full throttle. I want a balance, the good thing is it’s easily reversed! It’s getting close to time should be able to do it all next weekend:)
 


LilToTo17

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pmcderm29

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Comon Greddy! When is your exhaust for the 4dr Si coming !.?
I was waiting on Greddy but they do not respond to email, social media, or anything for that matter (shitty customer service!!). They SEMA show only had the coupe and have not heard anything about the sedan. I may pull the trigger on the Magnaflow.
 

ebatr24

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Sorry just saw this, I have 1 3/4 and a 1” mandrel bent. The plan is to go with the 1” mandrel bent first, and if it’s not too bad or as loud as I want then will go back with the 1 3/4 and make straight pass through with no bending. The smaller 90 degree will work like the Gundo mod not directly a full bypass will only bypass minimal under normal driving and full bypass during hard accel. The 1 3/4 will be straight through and be more of the ukmod and will be louder at all times but extremely loud under full throttle. I want a balance, the good thing is it’s easily reversed! It’s getting close to time should be able to do it all next weekend:)
Any progress on this? Been pondering doing this myself but I would have to pay for it as I don't have the tools to do it myself.
 

LilToTo17

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I was waiting on Greddy but they do not respond to email, social media, or anything for that matter (shitty customer service!!). They SEMA show only had the coupe and have not heard anything about the sedan. I may pull the trigger on the Magnaflow.
They told me should be March to April for the SI exhaust and April to June for their turbo kit and intercooler
 


bahndrvr

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Any progress on this? Been pondering doing this myself but I would have to pay for it as I don't have the tools to do it myself.
Not by me life happens lol, but there is another guy that paid to have it done and it sounds pretty damn good! Do a search for the ekmod or Gundo mod and it will come up
 

ebatr24

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Not by me life happens lol, but there is another guy that paid to have it done and it sounds pretty damn good! Do a search for the ekmod or Gundo mod and it will come up
That was me lol :)
 

bahndrvr

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That was me lol :)
I seriously thought it was you! I even did a search by your username after seeing this! In all honesty I’m concerned how loud it’s going to be as have been carting the wife and kids around a lot more as we got Disney passes and have been making the drive often! Don’t want it to be too loud! I can do this mod in under 2 hours in my driveway but have been stalling and having Graduates level midterms last week didn’t help lol
 

bahndrvr

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That was me lol :)
BTW what diameter pipe did you use to tie them together so have the 1 3/4 and so have the 1” mandrel bent, can use either but the 1” will be easier as I have a hole saw that size!
 

LilToTo17

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aFe Power Custom Type R exhaust fitted for SI, 27Won CAI, RV6 3” downpipe and frontpipe, Ktuner V2, FLI Custom Dyno Tuned, FX350 Clutch with SS Clutch line, Skunk2 Weighted Shift Knob.
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