All Things Mk5 > Performance Modifications

Ebay Sports Cat 100cell.... Pics & Fitted

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JMP:
I installed the downpipe today. Seemed to fit pretty good, although the support hanger near cat didnt line up perfectly. I had to use some force to get left side hole to line up. The sound didnt change much, I already had a precat delete and this downpipe really didnt add much. Cold start is just a bit louder but once it warms up, Its silent.

From pure performance factor, I just drove a few kilometers after install so engine might still adapt and feel different tomorrow. But I already noticed a slight increase in power over precat delete. However the precat delete felt like a bigger step from stock downpipe. I does pull now quite well and 2nd gear TCS flickers longer into higher revs. I didnt log timing pull or acceleration numbers yet. There might be room to add more timing now, lets see. The spoolup also seems different and maybe turbo is coming on just a bit later but naturally pulls better after its going.

Overall, feels good and Im happy with it  :happy2:

smithyc1987:
Can this be fitted to a milltek cat back.
And will this bring up any warning lights on an un mapped car

JMP:

--- Quote from: smithyc1987 on September 11, 2012, 09:18:19 pm ---Can this be fitted to a milltek cat back.
And will this bring up any warning lights on an un mapped car

--- End quote ---

If your milltek fits to stock downpipe then it should go on ok. However this means there is a slight restriction in the pipe where they are attached to each other (pipe will be stock diameter in the joint).

I have revo stage 2 so I dont know if this 100 cell is enough to keep cat efficiency being flagged up.

RedRobin:
^^^^
Whereas different pipe sections and components may manage to be fitted together it worries me that some people are happy to mix-n-match this-n-that on a remapped car. Performance exhaust systems such as Milltek, BCS, APR, are very consciously designed to be used as a whole and to perform properly without restrictions etc. There's more to it than just stringing pipework and silencers together.

If you can't afford a whole new system, how about a second-hand one?

JMP:

--- Quote from: RedRobin on September 12, 2012, 10:07:28 am ---it worries me that some people
--- End quote ---

Maybe you shouldn't worry so much what other people do? This DP seems to work perfectly, so it really doesn't make a big difference which catback you mate to it. Mainly it will just change the sound characters of the car. Its not like your changing the way engine works.

Its not a bad thing that people want to save money and not go with the unbelievably expensive exhaust options. IMHO they just dont represent a good value for money. So If someone wants to make his/her own combo, its perfectly fine and is certainly more rewarding for a person with a modification bug.

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