Review on 🚗 PaceSetter 70-1346 Shorty Header Review: Enhance Performance for 2007-2009 4.8L, 5.3L Chevy Silverado/GMC Sierra by Chris Santos

Do not seal the Y-flange of the driver's tube! From the first kilometer there was a noise similar to a hole in the exhaust. I felt that the craftsmanship and engineering that matched the factory chimneys were not enough. If you can refit everything completely and "design" the Y-tube flange to fit, then you're fine. Basically you get what you pay for. Buy a Gibson or something reputable if you want a direct fit for your factory exhaust. PS = After 13 months and 15,000 miles I'm going back to the original headers. I did NOT notice any increase in fuel economy, only a slight improvement in throttle response (more to do with the ignition and air intake upgrades). ALSO = sandblast and varnish with something valuable, such as B. a primer and paint. The factory equipment does not last more than 1000 km. This is not a heat resistant paint. I used Rustoleum primer and exhaust paint to keep it clean. The photo was taken after 11 months and a harsh, salty road winter in Ohio.