New Product Collection

Here you will see our newest & most popular products to hit the shelves at the K5 Optima Store

CP-E QKspl 3" Cast Bellmouth Downpipe

$609.95 USD

CP-E QKspl 3" Cast Bellmouth Downpipe

$609.95 USD



  • CPE products are designed & manufactured in the U.S.
  • Full Stainless construction using the best USA steel
  • CAD designed 304 SS Cast Bellmouth
  • 3″ piping and 304 stainless flange
  • MIG and TIG welded for strength and precision assembly
  • EGT bung and cap with plugs
  • Complete Bolt-on part, flawless mating with stock system
  • Signature CP-E™ Lifetime Warranty


  • The factory O2 housing bolted to the turbo on the Kia Optima/Hyundai Sonata is very restrictive.  It very much limits the amount of exhaust that can flow through the area.  CP-E wanted to minimize restrictions and open up the flow with a high volume bellmouth. They also wanted to create a smooth transition to the 3″ piping that mates up to their test pipe and cat back exhaust (sold separately)
  • Taking advantage of casting parts from 304 stainless steel the CP-E™ Optima/Sonata bellmouth has smooth transitions and contours that ensure smooth flow.  A flex section is incorporated into the design to allow for movement of the motor.  The 304 SS laser cut flange is hand TIG welded for strength
  • Please allow up to 2-3 weeks for this to ship from the manufacturer

Vehicle Applications:

  • 2011-2015 Kia Optima 2.0T
  • 2011-2014 Hyundai Sonata 2.0T

Additional CPE Products: