Well, I took apart my APS 3.5" system today at the rear axle junction. I picked up a Cobb cbe this weekend from Roddy...at first glance, it looked as though the axle back portion of the Cobb would mate up with the APS...at least I hoped it would...so ensued the experiment...

Although the APS uses 3.5" piping all the way through, the flange on the Cobb (3") and the APS flange bolt hole to bolt hole was identical distance wise! The dimensions of the flange themselves were very similar...

The distance between the two bolt holes center to center was about 4.25"...just a quick measurement...it was getting dark and I was getting bit all over by those dang mosquitoes...

Anyhow, so the bolts holes were the same, unfortunately, the two pieces were about 7degrees different in rotation...(yes I'm guessing...) maybe 7.5 degrees...heh heh...

too bad, it would have worked awesome...so my next decision...should I have an exhaust shop cut the pipe on the Cobb, rotate it, and reweld it back together so that it lines up with my APS 3.5" dp/midpipe section?

Damn dilemnas...


BTW...I am doing this because at times, although I really like the way the APS performs, it gets a bit loud for my tastes...and the silencer really restricts the exhaust flow...The Cobb is known to be one of the quieter exhausts on the market...I figure I would get the best of both worlds...Performance and a decent sound level...I want to keep the APS axle back portion for those days/weeks/months when I feel "LOUD"...heh heh

 

Ryan and Vakamon does it again!

So I took my car in on Friday to have the Cobb retrofitted...

Ryan ended up having to weld in another piece of piping to make it fit properly, but it is on now and looks like it was made for the APS...Ryan is one of the few people I trust my car with...

Soundwise I am very happy...it's a little louder than a stock sti catback with an aftermarket downpipe...I attribute this to the resonator in the APS mid-pipe, the Cobb does not have a resonator in the mid-pipe, so I believe it is quieter than the stock Cobb cat-back...

Anyhow, prior to this, when I put the restrictive silencer in my APS to let my ringing ears heal...I would lose so much power...with this new exhaust...I have most if not all the power of my APS without the loud noise...I'll probably miss the roar and change it back after a few months, but at least now, I have that option...

 

^^sweet, can't wait to hear what it sounds like.

 

Niiice! I was there on Friday getting my sway bar problem fixed. What time did you go down there Brent?

 

Roel...I took my car there at around 11am...picked it up at around 3:30pm...

Yeah...it's nice...almost too quiet though...I do like the fact that it hasn't seemed to have lost any power...

good to have your car back eh?

 

what diameter piping did you use to fill in the gap? was it ss or mild steel? i need to do something similar with mine.

 

Yeah my cars back and its super stiff and bumpy. Although they did good work they sprayed my titanium strut bar a bit with paint hopefully I can sand it off. Yeah just missed ya when I left at 3 to see if ryan could work on it, then came back at 5 when there was space. Also saw the GC8 sti swap really nice and loud!

 

My plumbing goes from a 3.5" midpipe to a 3" axle back...so Ryan just used a straight piece of 3" SS piping...nice work on Ryan's part...I'm very happy, and I still spool up really hard...

 

What a sleeper...GC on the outside...STI under the skin! Thing looks fast...Nice to have your car back eh?

 

Spray paint on your strut bar!? I'm not sure if we painted anything on your car, but if we did get paint where it's not supposed to be, just swing by and I'll take care of it. Sorry about that!

 

yo ryan, when can you fix up mine? i need the same thing done, just 2.5" to 2". idk how difficult it would be as my track pipe is mild steel and my cat back is ss. LMK so i can come by. L8R

 

For you? Neber! Just kidding, call me dude.

 

^^will do

 

Wrong shop Ryan yeah its not you guys who sprayed my strut bar its the body shop that did my body work when I got into an accident (Sig's Auto). But Ryan if you can help me out that would be great.

 

^^take it back to who did the damage. the shop needs to fix it's own mistakes, just like ryan was offering to do.