Downpipe for 2008 VRS TFSI

[zei20t]

installation is a piece if piss too BTW. you could probably manage it in a garage with it up on ramps.

[brad]

What's better 100 cell cat or 200 cell cat?
Thanks

Based on my armchair, internet research:

100 cell (per sq inch) cat will flow 2x (?) better but probably chuck a CEL on a stg1 tune.
200 cell (per sq inch) cat should be error free.

Keep in mind you're going from a cat with 60mm inlet/outlet & 800 cells sq/i to a 75mm i/o so the flow will be vastly improved if the x-section of the cat is similar.

When I was enquiring, the one & only exhaust place I rang told me I should get a 100 cell. I told him it would throw a CEL with a Stg1 tune. He didn't know what I was talking about.

If you are getting a stg2 tune they should be able to write out the CEL error in the programme.

[VRSJas]

installation is a piece if piss too BTW. you could probably manage it in a garage with it up on ramps.

Thats the whole idea. I managed to do the clutch in my XT Forester on the driveway I reckon I can manage a DP.

I plan to get mine off then take the whole unit to the exhaust shop get them to put it together and take the new unit bake and fit it.

Brad: I went with the 200 cel it comes with a bung in it as well for the sensor which I thought would be helpful.
After doing this I may just stretch it to the stage 2 tune for the little extra.

[zei20t]

smart idea, they can use the old one as a jig.

[brad]

Thats the whole idea. I managed to do the clutch in my XT Forester on the driveway I reckon I can manage a DP.

I plan to get mine off then take the whole unit to the exhaust shop get them to put it together and take the new unit bake and fit it.

Brad: I went with the 200 cel it comes with a bung in it as well for the sensor which I thought would be helpful.
After doing this I may just stretch it to the stage 2 tune for the little extra.

Yeah, I did my reply before reading the whole thread. I have a (bad) habit of doing that.

I did my downpipe R&R on front stands in the garage. Easy job. Only 1 nut that is character building - top closest to the block. I loosened it with a Stahwille short ring spanner & spun it off with a 17mm socket on a short 75mm handle 1/4 drive ratchet. It will fight you most of the way off. Lucas reckons you can get at it from the top with an extension. I didn't bother trying as I was making progress & not bleeding so I thought that was pretty good.

You need to take the white plastic heat shield off the driveshaft (2x 17mm bolts) & the joining sleeve is 2x13mm & the pressed steel crossbrace is 4x 13mm. I started at 14.30 & was finished by 16.30 IIRC but I'm an old ditherer.

[VRSJas]

Cool thanks for the tips. How do you find the stahwille spaners? Some people love them others hate them. I loved them but my apprencite wage didn't stretch to buying them.

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[brad]

I love them. This is my 2nd set.

I got onto my first set when I asked my tool guy if there was something thin-wall so I could stop grinding doen my 1970s Sidchrome stuff. He showed me Stahwille & they were great. My full toolkit was stolen in 1987 & I replaced it with KingChrome & other various bits & pieces which was OK. This was all stolen again in 1995 and I was off the tools by then so I put together a much smaller tool kit & bought a new set of Stahwille double-ended offset rings in Austria while on holidays (some people buy beer steins as souveniers).

I love them because they are really versatile, can take a hammering, fit into restricted spaces & they look good. A lot of people don't like how thin the handles are but it's OK with me.

[VRSJas]

I was amazed by how much of a beating they can take without breaking. I loved the thin handles.

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[brad]

Yep, great stuff.

I can also highly recommend Bahco sidecutters & Bahco shifting spanners.

[VRSJas]

I have a pair of side cutters that have lasted me many years of being in the trades. I will have a look at the brand tomorrow. They were very reasonably priced from memory. I did my second apprenticeship as an aircraft engineer so they were used many times a day every day.

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