nolarob Posted December 26, 2008 Report Posted December 26, 2008 I would like some opinions here on new Sierra Denali exhaust setup. I'm currently running stock manifolds but will be running Dynatech LT with cats removed on new setup. I have 2 Borla XR-1 12" x 4 1/2" x 7 7/8" oval mufflers with 3" inlet & outlet from my Corvette that are laying around since I changed back to sidepipes. I want to install them inline on single 3 tailpipe to rear. Would this combo still be loud or too restrictive on SD? Rob Quote
BigCountry Posted December 26, 2008 Report Posted December 26, 2008 Should be good to go as long as you stay N/A. Should sound good too IMO. Quote
nolarob Posted December 26, 2008 Author Report Posted December 26, 2008 BigCountry, I'm staying NA. I'm just worried about CFM for a modded 6.0. In your opinion do you think it would be more restrictive having 2 racing Borla XR-1 vs. one much larger street Magnaflow design etc... Rob Quote
BigCountry Posted December 26, 2008 Report Posted December 26, 2008 shouldn't be, the XR-1 is a straight thru design if I remember right. I think that's the one I had on my 99 and I could stick my arm through that thing, haha. Not much restriction there. My last truck had a boosted 6.0 running through a single 3" magnaflow (small round) and a Corsa Sport. When I opened my cutout it made no difference in boost if that tells you anything. Don't think I had much restriction running 2 inline muffs to me. Quote
nolarob Posted December 26, 2008 Author Report Posted December 26, 2008 shouldn't be, the XR-1 is a straight thru design if I remember right. I think that's the one I had on my 99 and I could stick my arm through that thing, haha. Not much restriction there. My last truck had a boosted 6.0 running through a single 3" magnaflow (small round) and a Corsa Sport. When I opened my cutout it made no difference in boost if that tells you anything. Don't think I had much restriction running 2 inline muffs to me. Well I'm gonna give it a try and see. What headers were you running b/c I'm on the fence with Pacesetter or Dynatech? I ran pacesetter before but on 2wd not awd I'm worried about fitment. Quote
BigCountry Posted December 27, 2008 Report Posted December 27, 2008 Well I'm gonna give it a try and see. What headers were you running b/c I'm on the fence with Pacesetter or Dynatech? I ran pacesetter before but on 2wd not awd I'm worried about fitment. I ran OBX, they were much nicer than I had ever expected for 500 bucks with y Quote
ces63ss Posted December 27, 2008 Report Posted December 27, 2008 a lot of people here run pacesetters and have had no trouble. the dynas are great products but $$$. Quote
nolarob Posted December 27, 2008 Author Report Posted December 27, 2008 Are there any known fitment problems with AWD and Pacesetters? Quote
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