i wouldnt leave it open to have it open, it was nice to have a cutout to have it loud whenever. if your around cops all day and see one close it was nice to have the option to close it inside and they wouldnt know. plus getting up and coming home late i would have it closed and have it open during the day. if i had it open at night my parents said they could hear me till i got home 5 mins later lol .

oh it was nice when i had a light to light race little ricers and fords and chevs would be ****ting them selves lol

 

kool, im probbably gonn put a set of 3in -2.5 in reducers untill i can get to a shop so i have at least a little bit of back pressure

 

oops double post

 

Yay about an 3 hrs ago i got an email from summit saying they shipped, est delivery tomorow or saturday

 

There a guy on eBay that sells them with the ypipe for the same price of summit with just longtubes

 

Not a big deal, these aren't race engines.

One thing worth note, if the O2 is anywhere near the end of the header opening, it will read very lean at low RPMs. I once moved my truck around the driveway with just the y-pipe, my wideband was pegging lean because it was so close to the end of the exhaust and contacting fresh air.

 

I know that. But it certainly can't help in the efficiency or optimal performance department.

 

Again, not a big deal. The O2 isn't used at WOT anyways (narrowband sensors are useless for anything other than stoich). The AFRs from each bank should be plenty close enough.

 

Some folks I know have had troubles with the O2 in just one pipe. (O2 codes up the wazoo.) Theoretically, you are correct.....

 

i picked up a set of thrush glasspacks to throw on untill i get a chance to have the shop trow some magnaflows on