1994BC Posted March 27, 2012 Share Posted March 27, 2012 $35 so far and looking to be ~$60 total to finish the whole exhaust. I'm going to run 2.25" all the way, reuse the stock muffler, and may or may not omit the second cat. depending on how this sounds. 2nd Gen. header trimmed, 1.75" to (right side 2" for near 90 degree bend to collector) 3" collector eventually to 2.25" with omitted cat. http://i44.tinypic.com/34qogeo.jpg 1.75" to (right side 2" for near 90 degree bend to collector) 3" collector eventually to 2.25" with omitted cat. The 1.75" coming from the head's are equal length once meeting the collector and meet dead center under the transmission. This is just the mock up,more pipe to be cut and welding. This will bolt up to the second cat's. flange for easy swapping. http://i39.tinypic.com/nodmyc.jpg Link to comment Share on other sites More sharing options...
legacyssturbofreak Posted March 27, 2012 Share Posted March 27, 2012 interesting, i like the effort. should be pretty good when its done Link to comment Share on other sites More sharing options...
1994BC Posted March 27, 2012 Author Share Posted March 27, 2012 interesting, i like the effort. should be pretty good when its done Thanks. I would have done complete to the ports but I don't trust my welding enough to do it. I'll finish it off with exhaust wrap once all done. Link to comment Share on other sites More sharing options...
FJuan Posted March 27, 2012 Share Posted March 27, 2012 Subscribe, interesting to see the final results. +1 on the DIY. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
SnipeyMG Posted March 28, 2012 Share Posted March 28, 2012 Very interested on results. I love DIY projects. Anyone know any others on a first gen? possibly easier haha. Link to comment Share on other sites More sharing options...
Legacy Wagon Posted March 28, 2012 Share Posted March 28, 2012 The second cat is usually the one that removes all the noise-barriers in my experience. When I removed my front the sound was the same. When the middle was gone it was a night and day difference. Link to comment Share on other sites More sharing options...
1994BC Posted March 28, 2012 Author Share Posted March 28, 2012 The second cat is usually the one that removes all the noise-barriers in my experience. When I removed my front the sound was the same. When the middle was gone it was a night and day difference. Could you describe the difference after removing the second cat.? Both performance wise and sound but mostly sound. Not wanting anything loud or buzzy at highway speed but looking for smooth, healthy, factory sounding flow. Link to comment Share on other sites More sharing options...
LosAngelesLGT Posted March 28, 2012 Share Posted March 28, 2012 There is no downpipe in this thread. Link to comment Share on other sites More sharing options...
1994BC Posted March 28, 2012 Author Share Posted March 28, 2012 There is no downpipe in this thread. Correct my mistake/lack of sleep. Link to comment Share on other sites More sharing options...
Legacy Wagon Posted March 28, 2012 Share Posted March 28, 2012 Could you describe the difference after removing the second cat.? Both performance wise and sound but mostly sound. Not wanting anything loud or buzzy at highway speed but looking for smooth, healthy, factory sounding flow. After removing the first I heard or felt no improvement, but once I took the second one out the sound was much fuller and it had a little more pickup, but the car hasnt been running well so it was more of an alternative, free, solution to try and fix the issue rather than for fun. If it was running better I could tell you more. I would make sure your muffler is in good shape if you're gonna remove both cats though. You'll want some backpressure left. Link to comment Share on other sites More sharing options...
1994BC Posted March 28, 2012 Author Share Posted March 28, 2012 Taking out the lip from the inner pipe http://i43.tinypic.com/nd68ap.jpg Link to comment Share on other sites More sharing options...
1994BC Posted April 16, 2012 Author Share Posted April 16, 2012 Finished for now. Please excuse the unsightly leak. Looks worse than the 1/4 quart it leaks in 3000 miles. http://i40.tinypic.com/2jdtg8.jpg o2 placement. At best 5 degrees off center but now heat up time is significantly less. Stock when cold could take several minutes to heat. Figured with the air flow in such an exposed area overheating would not me an issue. http://i39.tinypic.com/2e0i5bt.jpg Lastly a different angle with more bubble gum exposure. http://i43.tinypic.com/34gwuvc.jpg Couple tacks after placement where the 2.25' meets the 2' at cat. and I've been very pleased thus far. No more small exhaust leaks, shield rattle, smoother throttle response with low end pick up improved. Gas mileage checks out 31mpg when not flogging it out. When at any cruising speed exhaust noise cant be noted. Pulling above 2k lets on a subtle hint something healthy is there wanting. While creeping to 3k only makes you want more. No ricer sound just a well muffled boxer growl. I'll see to recording some audio/video. Total cost $35 Link to comment Share on other sites More sharing options...
Legacy Wagon Posted April 16, 2012 Share Posted April 16, 2012 Nice job, man Looks pretty sweet! I'll be anxious to hear a sound clip. Link to comment Share on other sites More sharing options...
westu37 Posted April 16, 2012 Share Posted April 16, 2012 1994bc, I have a buddy who owns a 1992- is there any way you could rig up a second one? If interested shoot me a pm with what you think is a fair price. Wes. Link to comment Share on other sites More sharing options...
FJuan Posted April 16, 2012 Share Posted April 16, 2012 Excellent job!! BTW - That is one oily engine under there. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
1994BC Posted April 17, 2012 Author Share Posted April 17, 2012 Nice job, man Looks pretty sweet! I'll be anxious to hear a sound clip. Thx man. I'll use my laptop and a $12 mic I got. Not sure how it will come out. Will try to do drive by's and tunnel/over passes along with idle, free rev. and take off. 1994bc, I have a buddy who owns a 1992- is there any way you could rig up a second one? If interested shoot me a pm with what you think is a fair price. Wes. Took about 15 hours including running around for bends and pipe. I'm sure I could do it in 10 or less second time around. At the moment I'm fairly busy but I will keep you in mind. Excellent job!! BTW - That is one oily engine under there. Thx! BTW - It's well lubricated and has regular rust protection applied. Link to comment Share on other sites More sharing options...
Legacy Wagon Posted April 17, 2012 Share Posted April 17, 2012 Good deal, dude Link to comment Share on other sites More sharing options...
FJuan Posted April 17, 2012 Share Posted April 17, 2012 BTW - It's well lubricated and has regular rust protection applied. :lol: Nice!! My wife's balls are delicious. Link to comment Share on other sites More sharing options...
1994BC Posted April 18, 2012 Author Share Posted April 18, 2012 Take off, then you hear a Chevy 2500 6.0l drive by at 60mph, a Chevy suv thing, my friend bored with a mic and myself pulling up hill in second in the distance then running out 3rd gear to 95mph drive by. Audio clip. best heard with headphones. Enjoy http://tinypic.com/m/fepifq/1 Link to comment Share on other sites More sharing options...
Legacy Wagon Posted April 18, 2012 Share Posted April 18, 2012 Haha...the bored part was hilarious. Man, that sounds good I'm impressed. Link to comment Share on other sites More sharing options...
94legacy22 Posted May 17, 2012 Share Posted May 17, 2012 Excellent job!! BTW - That is one oily engine under there. rust protection ftw Link to comment Share on other sites More sharing options...
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