Well, I now have a gti6 exhaust manifold and cat pipe fitted to my 1.8 cabriolet. It does require the subframe to be dropped, water pipes moved and a good deal of problem solving as there are two lambda senders one engine side of the cat and one downstream so a chunk of the original cat pipe with the tapping for the lamdba was cut and stiched in after the cat-which is just as well as there is a nearly 3" gap as the 6 cat pipe is shorter than the 1.8. Save for a cloud of smoke from under bonnet and a slight vibration of pipe aginst the heat shield on lifting off all is well -not excessively noisy and an adjustment -probably to the rear box clamp will sort out the interference. The water distribution pipe is a problem solved by detaching its hard mountings and securing them with a stainless clamp-supplied with the exhaust wrap- on the passenger side and by using a length of copper brake pipe to secure the metal cross pipe to the manifold with extra exhaust wrap to provide a double layer heat barrier.


getting the manifold in is not easy but looking at the original has to be a good idea!
Can't judge performance gain as yet but sounds nice!
Thanks to all who have given advice-after shakedown and wilwoods and braided hoses I will be looking to do the inlet and keen on advice as to injectors I think standard 1.8s until I get to the cams!!

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very very interesting clicky

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once known as want a 6 bad

Diablo red like the devil himself!™

6 Reasons to take the long way home

to be honest i think you will have to go by trial & error. They are very easy to swap over so just have a play and see which you think is best (or RR back to back).

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Monkey see monkey do

My excellent mechanic Tim thought the idea of going in from up top was hilarious and wouldn't work.From below -with the car on a lift and good tools -like a long extension on a ratchet to get to the bolts and a supply of spare studs and nice new copper nuts it is a biggish job but doable and it does give some real extra push. Be prepared to apply insulation to and re-route some heater plumbing-bodge engineering if you want to finish the job in one evening but if not removal/replacement and re-running longer is best . Where they are clipped to the bulkhead above the existing manifold leaves them touching the new manifold!

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New Forum same high quality intellectual debate!
Team Zimmer™