GFB BOV Trumpet Extremely Loud BOV Horn ELANTRA N As a benefit

As a benefit

Hyundai / Kia keeps certain maps in ECU conservative

capacity for longer servicing intervals

Removing the secondary catalytic converter on our cars is known to make about 10WHP and carry power to redline much better than OEM cat

yet still an efficient OCC that will collect oil/fuel effectively

GFB BOV Trumpet Extremely Loud BOV Horn ELANTRA N As a benefitIn Stock This will turn your GFB BOV or GFB Bypass Valve into a VERY loud BOV! THIS IS THE LOUDEST BOV YOU CAN FIND WITH THIS HORN. THIS HORN IS BEYOND EXTREMELY LOUD. Whistling TrumpetYou asked, we delivered. Many times we have been asked for a replacement trumpet that gives a different sound, and here it is. The ability to change the sound of a blow off valve is increasingly becoming an important issue with buyers, who want to sound different from