SteveW Posted July 19, 2016 Share Posted July 19, 2016 (edited) So, after my car hit 11 the driver side cat started rattling like hell all the time. I got hold of a set of H-Dev decats and a Motordyne XYZ with HFC. I've spent about 10 hours under the car the last 3 days. Got the old stuff off no problem, sensors out and all the new stuff on. However putting it all back something wasn't right. Where the XYZ joins the cobra exhaust which has been on the car years it joins at an angle and the flanges will not align. The decats sit too close to the heat shields, the XYZ fouls the gearbox mount on the drivers side but miles away at the passenger side!!!!! Arghhhhhh, wound up is an understatement! I reckon it must be the decats that are wrong a messing up everything else. With OEM cats and a Crapspeed Y pipe I had no issues. So next job is put the OE cats back on and figure out if it's the decats or the XYZ that's wrong. Really hope it's the decats..... Edited July 20, 2016 by SteveW Quote Link to comment Share on other sites More sharing options...
Rock_Steady Posted July 20, 2016 Share Posted July 20, 2016 Odd. I have berks HFCs,Cobra Y-pipe and an Agency power single outlet. It all fits really well even though they're different manufactures. Sounds like a proper head-ache you've got there. Hope you get to the bottom of it soon. Quote Link to comment Share on other sites More sharing options...
-Bradders- Posted July 20, 2016 Share Posted July 20, 2016 So, after my car hit 11 the driver side cat started rattling like hell all the time. I got hold of a set of H-Dev decats and a Motordyne XYZ with HFC. I've spent about 10 hours under the car the last 3 days. Got the old stuff off no problem, sensors out and all the new stuff on. However putting it all back something wasn't right. Where the XYZ joins the cobra exhaust which has been on the car years it joins at an angle and the flanges will not align. The decats sit too close to the heat shields, the XYZ fouls the gearbox mount on the drivers side but miles away at the passenger side!!!!! Arghhhhhh, wound up is an understatement! I reckon it must be the decats that are wrong a messing up everything else. With OEM cats and a Crapspeed Y pipe I had no issues. So next job is put the OE cats back on and figure out if it's the decats or the XYZ that's wrong. Really hope it's the decats..... Crapspeed lol, dont hear me complaining about fitting issues and i have full japspeed decats y pipe, mid section and backbox Quote Link to comment Share on other sites More sharing options...
SteveW Posted July 21, 2016 Author Share Posted July 21, 2016 Ha, I only say Crapspeed as my old K1 was one of the worst fitting things I've ever come across! Lol Quote Link to comment Share on other sites More sharing options...
veilside z Posted July 21, 2016 Share Posted July 21, 2016 Have you tried doing a loose fit to see if it aligns fit, then if so tighten bolts accordingly or is it just too far out. If you know somebody with a blow torch you could heat the offending areas enough to bend and twist the sections. Quote Link to comment Share on other sites More sharing options...
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