My mate has a mk3 astra on a k plate, it was a 1.4 single point injection jobby. He's just dropped a red top in that was donated by a mk2 gte. He explained that he'd got problems with the exhaust. The gte manifold doesnt line up with the necessary gap in the subframe on the mk3 for the xhaust to pass under. so i went round with the intention of just being able to fit a gsi exhaust manifold and welding any additional piping in to meet the cat. Turns out i cant do this because the manifold hits the sump???!!! Are the sumps on these blocks different in the gsi to the gte? I know how i would get round the problem but im just wondering if anyone's experienced the same difficulties? My intention is to cut the flange off the gte manifold and weld it back on at a different angle allowing the rest of the pipe to pass under the subframe and then weld a compensator in and any other pipe to join the cat. I know this isnt going to help the exhaust gas flow but its the only way i can see of getting round the problem at the mo. Any ideas people? Bearing in mind it needs to cost as little as possible! Lol!