(No Longer need it) WTB N54 Catless down pipes

[martymil]

Wanted to buy some catless downpipes for my 135i

I have ar catted ones but I would like to get catless ones for some testing to see if they make such a big difference in power.

Doesn't really matter what brand as long as it fits RHD cars.

Let me know if you have something.

[BMW86]

Get AR as they o2 sensor location is suitable for us RHD guys. Perfect fitment.

[martymil]

Originally Posted by BMW86

Get AR as they o2 sensor location is suitable for us RHD guys. Perfect fitment.

too bad I missed the ones you sold

[BMW86]

Originally Posted by martymil

too bad I missed the ones you sold

Yes they were a good price too for the resonated version.

[jntp]

I went with VRSF and they fit great and O2 sensor placement was fine for RHD cars. Price was good too.

[martymil]

I hoped to get something in the next couple of days but looks like I might be out of luck.

[BMWhoarder]

Im contemplating going back to catted DPs due to excessive smoking and smell since going fully de-catted.

Perhaps we can arrange a swap?

[martymil]

Originally Posted by ba114

Im contemplating going back to catted DPs due to excessive smoking and smell since going fully de-catted.

Perhaps we can arrange a swap?

Which ones have you got ?

just seen it.

I really wanted to keep the catted ones just in case I wanted to go back. mine are ar and ceramic coated and worth a fair bit.

let you know as I had a guy offer me a set of ar catless, just waiting on the answer.



..

[BMWhoarder]

no problems.

just fair warning, ive got 115k kms on my car. Looks like the valve stem seals are worn, causing the smoking, which was masked when i still had my rear cats in.

you may experience the same issue if fully catless. i normally wouldnt mind but its embarrassing driving around, only to have puffs of smoke come out on deceleration and when taking off.

[martymil]

Thanks guys got some this evening.

Install tomorrow and a dyno run.

[martymil]

Race 100 cell cats in mids will solve your problem and not hinder any power gains.

[BMWhoarder]

unfortunately it'd require a whole new set of mids made up. Considering i just spent $3700 to get the system over from the states, not overly keen on chopping it up.

Just have to get the root cause of the problem fixed instead (leaking valve stem seals)

[martymil]

I might be selling mine soon have to get a new hpf first and do some more testing

With the new found power im running out of fuel pressure.

[BMWhoarder]

howd the dyno run go?

[martymil]

Fixed the hpfp, now I'm getting a under boost error.

Should be fixed by tonight, hopefully I'll make it to eastern creek