black318i Posted March 26, 2009 Share Posted March 26, 2009 I have a 3" catted DP and I'm thinking of adding a 3" mid and 2.5" Y, but keep the stock mufflers. Anyone do this and was there a noticeable difference? Link to comment Share on other sites More sharing options...
kevkel33leg05 Posted March 26, 2009 Share Posted March 26, 2009 Here is a chart of my setup. Mods for the 266WHP and 311WTQ Hks catless up Xo2 catless dp xo2 FMIC Spec stage 2+ clutch Spec LWF Stock airbox Stock cbe TA Etune From adding just x02 mid and y pipe still (stock mufflers) and updated map gained 12WHP and 10WTQ noticeable in the mid range the most. http://i397.photobucket.com/albums/pp60/kevkel50/dynosheetsuny.jpg Link to comment Share on other sites More sharing options...
black318i Posted March 26, 2009 Author Share Posted March 26, 2009 Good to know thanks.What octane do you use and what is your peak boost? Link to comment Share on other sites More sharing options...
kevkel33leg05 Posted March 26, 2009 Share Posted March 26, 2009 I use 93 octane and peak boost is 18.5 tappering down to mid/high 11's by redline. Link to comment Share on other sites More sharing options...
black318i Posted March 26, 2009 Author Share Posted March 26, 2009 Thanks again Link to comment Share on other sites More sharing options...
kevkel33leg05 Posted March 26, 2009 Share Posted March 26, 2009 No problem:) Link to comment Share on other sites More sharing options...
pierce88 Posted March 26, 2009 Share Posted March 26, 2009 I went from a 13.5 to 13.3 in the 1/4 mile when I added my XO2 mid and Y pipes with the stock mufflers... Definately worth it. -Pierce Link to comment Share on other sites More sharing options...
black318i Posted March 26, 2009 Author Share Posted March 26, 2009 How does it sound VS stock? Link to comment Share on other sites More sharing options...
Long Island Legacy Posted March 26, 2009 Share Posted March 26, 2009 I'm running the stock catback with a full catless dp(Perrin 3" one piece), and normal driving you cant notice a difference, if i did upgrade i would still only do the mid section as the sleeper look of the stock exhaust is worth it, plus you still getting decent gains with the midpipe which is deff your limiting factor. Link to comment Share on other sites More sharing options...
kevkel33leg05 Posted March 26, 2009 Share Posted March 26, 2009 How does it sound VS stock? It’s not too much loader then stock. You can hear it but not annoying at all. Here is a clip of my car. Remember mine is catless (with a resonator) so yours would be a little quieter. http://videos.streetfire.net/video/Stage-2-Legacy-gt-HKS-up_637182.htm Link to comment Share on other sites More sharing options...
Daedalus Posted March 27, 2009 Share Posted March 27, 2009 Sounds a lot better than I expected! Also is the Cobb Mid/Y resonated? Link to comment Share on other sites More sharing options...
scoobydoobie Posted March 27, 2009 Share Posted March 27, 2009 cobb mid is not resonated Link to comment Share on other sites More sharing options...
tealdub Posted March 27, 2009 Share Posted March 27, 2009 No it is not. Link to comment Share on other sites More sharing options...
Cid369 Posted April 1, 2009 Share Posted April 1, 2009 Where did you guys get the XO2 mid y pipe at? Link to comment Share on other sites More sharing options...
kevkel33leg05 Posted April 1, 2009 Share Posted April 1, 2009 I got my from a member on here. Paid $100 and gave him my stock catback. Pretty much just gotta keep your eyes open since you cant buy just the mid and y pipe. Link to comment Share on other sites More sharing options...
jerseyglock Posted April 1, 2009 Share Posted April 1, 2009 My setup is Lachute's catted DP, mid, Y-pipe and stock mufflers. I went from Magnaflow mufflers back to stock and I'm pretty happy with current db, not that loud. I'm not sure how many aftermarket turbo back will mate up with stock mufflers. But, Lachute's DP will mate with stock exhaust. Link to comment Share on other sites More sharing options...
Cid369 Posted April 1, 2009 Share Posted April 1, 2009 I got my from a member on here. Paid $100 and gave him my stock catback. Pretty much just gotta keep your eyes open since you cant buy just the mid and y pipe. Yeah I guess so, cuz I've checked everywhere even ebay and nothing. Link to comment Share on other sites More sharing options...
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