CVF 3" Stainless Steel Catted Downpipe for 2015+ Mustang EcoBoost

Discussion in 'I4 2.3L EcoBoost Engine / Mods: Bolt-ons, Exhaust,' started by cvf-jason, Dec 16, 2018.

  1. cvf-jason

    cvf-jason Well-Known Member
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    #1 cvf-jason, Dec 16, 2018
    Last edited: Jun 5, 2019
    tWKfBWB.png

    CVF Catted Downpipe on CVFab.com

    We're proud to announce the newest addition to our growing Mustang EcoBoost product line, the 3" Stainless Steel Catted Downpipe! Featuring a 200 cell high-flow catalytic converter TIG welded on mandrel bent stainless steel, our catted downpipe is covered by CVF's Lifetime Warranty and is aggressively priced to give you the most bang for your buck!

    Features:
    • 200 cell high-flow catalytic converter
    • Direct bolt-on replacement
    • T304 stainless steel
    • 100% mandrel bent
    • Fits both OEM and aftermarket exhausts
    • Fully TIG welded
    • CVF Lifetime Warranty
    6-5-19 Update: 3" to 3" exhaust adapter now available!
     
  2. OP
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    cvf-jason

    cvf-jason Well-Known Member
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    PM me for a forum-specific discount and with any questions! :)
     
  3. lostlocalhost

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    Any vids of the catted dp? Specifically, paired with an aftermarket catback? (mbrp race here)
     
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    cvf-jason

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    Here are a few for you (they're in the reviews up top of the product page link):







    Let me know if I can answer any other questions!

    Jason
     
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    Does that downpipe throw codes? Do I need a tune?
     
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    cvf-jason

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  7. Doug

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    No codes for me with the Catless DP.
     
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    Is the gut of the cat spun monolith metal or old school Ceramic honeycomb?
     
  9. lostlocalhost

    lostlocalhost Well-Known Member

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    #9 lostlocalhost, Jan 24, 2020
    Last edited: Jan 27, 2020
    Bit of a bump, but I had this installed on my 18 EBP PP a couple days ago.
    I have it paired with a MBRP Race catback, cut for a full 3 inch all the way. I'm running Cobb Stg2 OTS.
    Other mods for reference: ETSIC, Intake, DVCC, Gutted PCV, 1stepColder Plugs, 100psiCheckValve, and stripes. The stripes add 24HP.

    Initial impressions are great.

    Nagative/Questionable:
    I had someone else install it and he complain that the gasket to the turbo housing seemed "cheap/flimsy" and I should check and tighten the nuts after a few heating cycles... Might not really be an issue. (Can see connection in attached image)
    The first two days it smelled more than I expected. I thought the catted ver wouldn't have any smell in the cabin. I didn't see any issues or places it would leak, and today it didn't smell at all - so maybe just a fluke from the install?
    It did throw an O2 sensor code at least twice. "P0420 Catalyst System Efficiency Below Threshold" I have a defouler, but it looks like too tight a fit to pull the sensor while the DP is on, and I really don't want to remove it - so Might just have to deal with it until the custom tune. (Pic of lower sensor in attached img)

    Pros:
    Great build, and good fit. I was worried it would sag underneath - but it sits where it should.
    Admittedly, I hadn't been running the stg2 tune for very long, but there is definitely an increase in power compared to pre-install. Feels like a new car.
    Let's talk sound... I wasn't sure what to expect with it being the catted version - but it's beefy. It (along with the MBRP Race catback) definitely made my exhaust louder to the point that I set off 6 car alarms in my parking deck this morning. I like it, despite my wife and neighbors complaints. :)

    Again, while it's only been a few days, I'm very happy with the results! Believe the CVF hype. :) Also, while I did get a code from cfv-jason for a forum discount, I picked it up new from a user here that didn't install his. Much appreciation to the forum for the knowledge and buying/trading opportunities.
    I'll probably use that code for new CVF IC Pipes.

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