RS2 EM on S4 AAN

[s420vq]

I am planning to replace the stock EM on my '92 S4 with a stock RS2 EM, and retaining the K24. My question is this, is it a simple bolt-off, bolt-on exercise? Basically, will the stock downpipe of my S4 the fit onto the RS2 EM without any mods??

[Corey]

You will need to shorten a couple of the manifold studs (or replace with the RS2 items) but other than that a straight swap.

[s420vq]

Tanks for the info Cory. but give some more detail on the shorter studs..... Are they the studs in the cylinder head?

[Corey]

Yes

[s420vq]

OK, thanks for the info. I have a blown cylinder head gasket, and the head must come off anyhow, will do the shortening while its off the block.

[lune]

Chances are some of the studs will either screw out when un-doing the nuts or the bu**ers will snap in the head. When you've replaced any snapped studs, drop the mani on to the head and you will see straight away which of the studs need to be shorter. When re-assembling I would advise against putting washers on the shorter studs as this may prevent the filister nut (however spelt) getting a grip on the shortened stud. Put washers on all other studs.

[s420vq]

Txs for the advise Lune. Last question, I know the flow of the RS2 EM is better that the AAN item, will I be able to feel anything different when driving the S4? Other mods to the car is a eBennet Stage 1 chip, silicone boost pipes and fleeflow exhaust pipe.

[Jamo]

Whats an eBennet Stage 1 chip?

If your keeping the stock K24 consider contacting S2central.net for a Homefry chip. With your RS2 EM and free flowing exhaust it should push you into the 280-290 bhp range if you have a decent intercooler.

[s420vq]

Sorry, I actually meant 2Bennet. . The 2Bennet Stage 1 claims +50 HP.