# Zed upgraded? **URL:** \ **Category:** Shift518 Automotive\ **Created:** [April 14, 2009, 4:53am UTC](https://forums.speedlife.net/t/zed-upgraded/243514 "2009-04-14T04:53:55Z")\ **Posts on this page:** 1\ **Showing post:** 33
**Author:** ![deadbeatrec](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/deadbeatrec/32/6401_2.png) [@deadbeatrec](https://forums.speedlife.net/u/deadbeatrec)\ **Post date:** [April 16, 2009, 8:53am UTC](https://forums.speedlife.net/t/zed-upgraded/243514/33 "2009-04-16T08:53:44Z")
> [@Build your own sportscar](https://forums.speedlife.net/t/build-your-own-sportscar/16577/55): > > lol didnt see that, just wondering what made you decide on the ARH headers? Also, people gain on average 20 rwhp going from a 1 3/4 header to a 1 7/8 on highly modified motors such as yourself, you might even be in the upwards of 30+rwhp, good decision on your part to go with the 1 7/8 first, lots of people do it backwards and get the 1 3/4 or 1 5/8 longtubes and end up going bigger. i have herd nothing but the utter best when it come to ARH. From the fitment, the sound, the power and the quality, these headers are top of the echelon. they are more $$$ than others but its worth it. --- _[View the full topic](https://forums.speedlife.net/t/zed-upgraded/243514)._