paulk11087

and from what i've heard so far is that getting a test pipe and putting it on a stock engine/ECU, you'll feel a significant gain in tq at the low end. how much of a gain do you think i'll feel with a APR 93 octane flash? my APR dealer said he'll reflash to stage 2 w/test pipe software so that my CEL won't come on but just curious as to how much i'll really feel it at the low end of my rpms... anyone have any first hand experience they can share with me? thanks in advanced!

CharlesP

I know the VMR supposedly gives anywhere from 5-15 depending on your mods.

I have one (with a full exhaust) and the gains were very nice. I used pocketdyno (obviously not the most reliable) and pulled in a 0-60 around 5.3/5.4 seconds. I have GIAC Xchip, CAI, and a full exhaust.

paulk11087

thanks charles! my test pipe is coming in thursday and i'm really looking forward to installing this. in a few weeks im getting a fuel pump too and hopefully about a month later i'll get an exhaust... this whole car modding thing is like a drug...

evilteinman

What if you already have SW. If I got a test pipe would my CEL come on?

paulk11087

APR and REVO are the only ones with test pipe files that i know of. i remember seeing something on audizine.com where they made something to put into one of the o2 sensor spots but i can't seem to find it to link it to you. its just a little block that you screw in place of the o2 sensor and it'll eliminate the CEL. if i come across it i'll PM you the link.

btw my testpipe is installed and i'm really liking the low end rpm torque gains... very noticeable IMO

evilteinman

Cool. Please send if you do. I am almost saved up for some coilovers on my ride. next on my "to do" list is exhaust/test pipe.

snackbarber

I have heard of this O2 spacer. http://forums.vwvortex.com/zerothread?id=2942552 Supposed to move O2 sensor far enough out of stream that MIL won't be triggered by test pipe. Seems to be positive reviews of it.

kayakman13

So for AEB your best bet is the spark plug non fouler mod. Basically you want two non foulers (The HELP! ones are the best if you can get them, if not, the longer the better.)
Drill one non fouler out with 1/2 inch bit so your rear o2 sensor fits in there. Then screw the modified non-fouler into the regular non fouler. Screw all that into the testpipe. Then screw your o2 sensor into the whole shindig and bam! This has the best track record on the AEB. As the model progresses by year, the successes drop. For non-AEB look for the 90 degree mount or sometimes its called the box plug.

The basic idea behind all of these is to take the "nose" of the sensor and pull it back from the main flow. Thus it reads less carbons, doesn't pull a CEL and gives the OK for DEQ. So thats why the longer Non foulers are better. The 90 degree plug works the same way, the carbons have to travel to the plug around a 90 degree bend so less make it.

Software is best, but you own a B5, so you can make your own fix right? This is what owning an Audi is all about! =D

kayakman13

So for anyone who is still curious on how that TP + Stock exhaust runs, it runs KILLER! the car is a whole new beast again! It wasn't particularly loud or "poppy" but it spools fast, accelerates fast, and makes go fast.

Me before the pipe
Me after the pipe !!!!!!!!