With the Hahn Stage II comming soon I have been planning the exhaust. Downpipe is 2.25". I plan to scrap the cat and go 2.5" piping. I posted before, but now I'm getting down to the wire. I don't want a very loud system either.

2 questions though.

1) I want to run a resonator and found 2 Magnaflows that are 4" rounds, with a 2.5" in/outlet. Should I go with the 18" or 24" length? I am unsure as to the tangible difference between the two lengths ( I do not believe clearance is an issue).

2) I found a nice muffler, Magnaflow Race Series with 4" tip. It has a 3" inlet to the muffler. Is this too big since I'm running all 2.5" piping? The other option was a 2.25", but this would be reducing size at the end of the system and I'm not sure if this would have a large effect.

Any opinions or experiences would be great.
Thanks.


"If you aren't shifting, then you certainly aren't driving!"

I would just run 3 inch piping from DP back without resonators.. it is not loud at all.. well for me...


www.customtubesinc.com


I got my 3 inch catback from them minus muffler/hangers for 200 shipped



LE61T PTE6262 Powered

i'm going to be running 2.5'' from DP back and have longest resonator i can fit out the rear.



MY 2003 SUNFIRE 15.63@87.86mph

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Anyone else? Also, what do you do with the O2 sensor from the cat when it is removed?


"If you aren't shifting, then you certainly aren't driving!"

I don't have a cat on mine, my exhaust from where the cat used to be back is all stock though, and its really not any/much louder than stock.

Weld a bung for the sensor back in, and put the sensor there, just no cat, I haven't gotten a CEL from it yet.





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