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Where to find a factory 360 sport exhaust?

Discussion in '360/430' started by one4torque, Jun 17, 2018.

  1. one4torque

    one4torque Formula 3

    May 20, 2018
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    No apology necessary.

    I found a cs exhaust.

    Pretty excited to hear fab speed headers and cs muff w stock cats. Hoping its the beezknees.
     
  2. Kitchdog

    Kitchdog Karting

    Jan 10, 2019
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    Ryan
    Hi all - would a factory OEM muffler from a 360 Modena be suitable for a 360 spider? Same part numbers?

    Thanks!
     
  3. Ghostdiver

    Ghostdiver Formula Junior
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    Mar 18, 2005
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    Wally Hollar
    Part numbers from the Ricambi website....
    Modena 174089
    Spider 174089

    OEM mufflers are the same between the two unless the spider happens to have the optional sport exhaust from the factory or someone added it. In that case, yes it will fit as long as you change the tailpipes and support bracket for the muffler box.
     
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  4. one4torque

    one4torque Formula 3

    May 20, 2018
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    Bumping my old CS muffler thread.... getting close to finally installing the CS muffler system.

    BUT can the ex valve opening RPM be tuned to match the new CS exhaust?

    Or do I need to source the CS ECU's???......

    Perhaps a discussion with guru TREV is in order.

    Merry Merry,
    Jeff San Antonio
     
  5. G. Pepper

    G. Pepper F1 World Champ
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    Mar 15, 2012
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    Why would anything have to change? I put a valved CS exhaust on with no other changes to my car. Works perfectly.

    I'm having EAG replace my stock headers and cats with Fabspeed in the next month or two, and nothing will change then either. Except it will sound better. :)
     
  6. one4torque

    one4torque Formula 3

    May 20, 2018
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    Can’t wait to hear your impressions. That is prob where I’m heading too.


    I’ve read the cs ex came w ecu’s to open the by pass valves at higher rpm. I presume to help low end tq.
     
  7. G. Pepper

    G. Pepper F1 World Champ
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    Ah, I didn't understand your question. I had heard there were ECU's that came with the CS exhaust, but I don't think mine came with them. Also, that's not how the mechanic explained the valves to me, it's pressure that opens them, not RPM. I really like it, because just driving around, the sound is good but not loud. But step on the gas a little more, and it opens up. It comes in at any RPM.
     
  8. one4torque

    one4torque Formula 3

    May 20, 2018
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    GP - vac operates the valves... But I believe it is an elec signal that opens the small vac valve that sends the vac signal to the ex actuator.
    So it is tuned to open at certain load cond or rpm by the ECU.

    Please correct me if I'm wrong. So if this is true, at lower load, or rpm the valves could open on-time for the stock muff.... but "too soon" for the CS system causing less back-pressure and lower torque.

    I'm sure an F expert can chime in on this.
     
  9. G. Pepper

    G. Pepper F1 World Champ
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    No, I believe you. I'm not an expert in this area, by far. I just know mine works exactly how I want it to. :)
     
  10. one4torque

    one4torque Formula 3

    May 20, 2018
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    Any drop in torque is probably not noticeable?
     
  11. G. Pepper

    G. Pepper F1 World Champ
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    I couldn't tell you. My 360 came with an obnoxiously loud aftermarket can. The valved CS has been an improvement in every way, but I never experienced a stock exhaust.
     
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  12. 360+Volt=Prius

    360+Volt=Prius Formula 3

    Sep 1, 2013
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    I purchased my new racing exhaust set up from a ferrari dealer about 5 years ago back then they were deeply discounted. I have a 3 pedal car. Mine came with 2 new ecu’s that were programmed by the dealer for my car. I didn’t immediately replace the ecu’s, but after I did I have to say I really did not notice a difference. But I don’t track my car.


    Sent from my iPhone using FerrariChat
     
    one4torque likes this.
  13. sierra055

    sierra055 Formula Junior
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    Sep 25, 2016
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    Marshall
    The ECU's that came with the factory kit were programmed to open the valves at 6k RPM instead of the factory 4k. I believe this was for EPA/noise more than for torque. 360Trev, as many people know, has done a lot of work with the ECU's and his CS maps have been modified to open the valves at the original 4k to improve the torque. To the OP, if you were looking to change your ECU and valve settings, he is the man to speak to.
     
  14. 360trev

    360trev F1 Rookie
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    Oct 29, 2005
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    The factory ecus are required to eliminate the multiple flat spots that you get when fitting any sports exhaust to a 360 so it's still worth fitting them even if the difference isn't huge, it's how the car would have come from the factory if optioned with the optional sports exhaust. The car will actually perform much better and smooth revving with them fitted. Most people don't really appreciate it but it's actually had the factory maps tweaked to ensure improved drivability across entire rev range. Stock ecu's with a sports exhaust leave a lot on the table and ain't as nice to drive.

    Unfortunately for US spec cars the damn regulators got in the way a bit so performance isn't as good as it could be. I can fix this, pm me if you want more details. For instance they demanded lowered valve opening times which impacts maximum torque too unlike the EU spec sports exhaust maps which didnt get such aggressive treatment until later model years. Anything after 2004 got worse performance.
     
  15. one4torque

    one4torque Formula 3

    May 20, 2018
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    Sierra - will contact trev for some ecu mods when doing my cs muff. He is the man. I would like to know IF there is any change to rwhp/tq with the cs muffler.... and opening settings. Or just noise fun.

    360+ - thanks for the seat-o-pants meter..... same thing gp is saying. works fine with modena ex valve tune.... 4k.

    I'm not too concerned about epa noise regs..... it's CS sounds we're talking about... not NOISE :)
     
  16. one4torque

    one4torque Formula 3

    May 20, 2018
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    trev - we were typing at same time :)

    I will be hitting you up for the tune for my CS exhaust.
    Might get my car to a dyno for before/after tune/muff comparo.

    All the best to you sir.
     
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