smiddy 76 Report post Posted February 18, 2009 Nice power gains, although not documented. Much more mid range. Quote Share this post Link to post Share on other sites
smiddy 76 Report post Posted March 5, 2009 Hold on to your skin Ron! Will have some info soon. Are you not guessing power on your OBX units? Quote Share this post Link to post Share on other sites
aliluya 0 Report post Posted March 5, 2009 DAMMIT it was such a shame that it couldn't go on my E39!!! Quote Share this post Link to post Share on other sites
Driftit 2078 Report post Posted March 5, 2009 I am interested to see the results. And why could it not go on your E39 aliluya? Quote Share this post Link to post Share on other sites
aliluya 0 Report post Posted March 5, 2009 Because i have the version of E39 that has the cats built into the headers... and there was no easy option to replace both. Quote Share this post Link to post Share on other sites
smiddy 76 Report post Posted March 5, 2009 Yeah Ali, was a bummer they do not fit. As you can see they look pretty good. Quote Share this post Link to post Share on other sites
Driftit 2078 Report post Posted March 5, 2009 Ah I see. Does the 97 model have these cats? Or are they further down? If so could you not run exhaust system off one of these cars? Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted March 6, 2009 Because i have the version of E39 that has the cats built into the headers... and there was no easy option to replace both. Thats right. Your car also has pre cat and after cat oxy sensors. You cannot remove the cats. If you do... you will destroy the engine. Quote Share this post Link to post Share on other sites
aliluya 0 Report post Posted March 6, 2009 does having the cat up there create a lot more unwanted heat? Whats the actual benefits of having the cat right there ???? Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted March 6, 2009 does having the cat up there create a lot more unwanted heat? Whats the actual benefits of having the cat right there ???? I'm not sure. Alot of the manufacturers are building the cats into the exhaust manifolds...Merc Audi VW etc.etc Quote Share this post Link to post Share on other sites
