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Got a Ravin exhaust

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by TwoCrowsDesign, Oct 2, 2001.

  1. TwoCrowsDesign

    TwoCrowsDesign 1/2 ton status

    Jul 13, 2001
    Likes Received:
    Short version:
    $254, great sound, and obvious low-end performance gains. Beats my old stocker hands down. I like it a lot.

    Longer version:
    Ok, 254 samolians later its done. Priced comparable to Flowmaster. I was on the fence whether to go with Ravin or Flowmaster, but in the end it was shop personnel that swayed me. I just liked the Ravin guys better, and all else being equal - I deal with people I like.

    It sounds and performs great, a clear increase in off-the-line kick. Perhaps noticeable highway performance gain, but I haven't decided yet since one of the two times I had it on the highway resulted in getting pushed out of the middle lane by a Ford Ranger (cringe) during rush hour and being towed home with a bad alternator by an International. Ah, but thats another story...

    Anyway, its a single pipe system which I had hoped would have 3 inch tube all the way out. However they couldn't get over the axle with 3" without scraping so I ended up with a 2.5" tail pipe. After I lift and trim I'll bring it back to get the 3" tail, that should open it up nicely and hopefully give me a little more umph. I made sure to have them relocate the rear hanger and route the pipe to keep clear of the shackle in anticipation of a shackle flip.

  2. CaptCrunch

    CaptCrunch 1/2 ton status

    Feb 2, 2001
    Likes Received:
    My next drag car will have Ravin exhaust. I have Flowmaster 40's on the truck and love em. I think either way you're a winner! I have seen numerous studies that say the Ravens flow much better in high rpm/high power applications.

    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
  3. Leadfoot

    Leadfoot 1/2 ton status Premium Member

    Nov 28, 2000
    Likes Received:
    Western Massachusetts
    In all actuallity, you may have a better off the line response with the 2.5 inch tailpipe than you will when you go to 3". A little backpressure is a GOOD thing when it comes to low rpm's. The 3" will only benefit you at higher RPM's when more air is flowing. Just a thought, because MOST of the people on this board are looking for more low end performance due to the usage and weight of our vehicles. The 3" would be best only if you do 60% or more highway driving (which some people do). No matter how you go though, it should still kick-butt over the stock setup.
    Sounds good, keep us posted if/when you go to 3".

    See my rig at <a target="_blank" href=http://coloradok5.com/gallery/Leadfoot>http://coloradok5.com/gallery/Leadfoot</a>

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