Silver90Quattro

My father and I are beginning to resurrect his '93 UrS4 with 196,000 miles on the clock. The stock exhaust manifold has developed the infamous crack, and we are going to replace it with the RS2 Manifold. The stock turbo was rebuilt about 60,000 miles ago and appears to be in good shape. Will it bolt up directly to the RS2 Manifold?

Also, what do you guys recommend we do at this stage? The car currently has a Hoppen Stage III chip (280hp/322lb-ft.) but what should we be looking into replacing to compliment the RS2 Manifold?

For now, can we replace the stock manifold with the RS2 and not worry about driveability issues or engine damage? Our primary goal is just to "get her back on the road" and we do not wish to develop any issues for the next 100,000 miles!

Thanks all!

-Brian

cuatrokoop

Will stock turbo ('93 UrS4) bolt up to RS2 Manifold? - Yes.

squidix9

looking at the RS2 manifold on EBay for around $500 or so, it's not the real RS2 manifold. It's an Asian repro and hasn't gotten any reviews yet.

If your stock manifold is broken, it's a good excuse to give it a try. The big concerns are whether the metalurgy is decent.

Some upgrades you can consider are:

better exhaust to make it breathe better
RS2 injectors/034 upgrade
different chip set
turbo upgrade
airbox upgrade
suspension
brakes

Watch the S-cars forum, lot's of good advice there.

Silver90Quattro

...are not too impressed upon initial inspection of the ports. VERY rough indeed! Looking into the ports it looks as though there is still welding/casting slag and sand in the ports. Like, I said very rough. I understand that the Porsche/Audi RS2 is supposedly rough, but not sure if its supposed to be THIS rough.

It has the Audi rings and the part number: 034 253 033C (and some other numbers in various places) on it.

So again, how do you know it is an Asian repo?

Thanks!

former BMW guy

the consensus has been that it is a repro.... the real ones go for 800-1000. One of the posters on the other forum stated that he could order the same ones from china but did not due so due to reliability concerns. How do you know... well the answer was take a chance.... bolt it up and see how long you get out of it.... a year or two seemed to be the consensus.

hth


jeff