fp280z Posted July 16, 2008 Share Posted July 16, 2008 I'm about to pull the trigger on a new set of Stahl headers and have one question for those that already have a set (anyone?): There is an option on the two 3-1 collectors to be slip-on or weld-on. My first instinct was to have them welded onto the primaries but was wondering if there are any installation issues with this. In other words, are slip-on 3-1 collectors a good idea to facilitate getting this thing in around the steering shaft? Or does it fit fine with the collectors welded on? BTW, just for reference I'm getting a set with 1-5/8" primaries with 2-1/2" collectors. Will be building a 2-1/2" Y-pipe to 3" exhaust for it. Thanks. -Rick Quote Link to comment Share on other sites More sharing options...
johnc Posted July 17, 2008 Share Posted July 17, 2008 Slip on is a better option for installation, especially if you're moving the engine back in the engine compartment. Also, use a real merge collector in your Y pipe, and try to make the secondary pipes equal length. Quote Link to comment Share on other sites More sharing options...
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