[Mrsteno2369]

Hello I have a 335i 07 and I want to add the VRSF 3" Cast Stainless Steel Catless Downpipes V2 N54 but I dont know if i need to add the extra coating for $80 let me know thanks!

nah

[Mrsteno2369]

nah I dont need them?

[TrollToll]

Not required, but it doesn't hurt. The majority of them aren't coated.

[Mrsteno2369]

Is better to have them then to not? like will it overheat with ought them

[idrift4wd]

Originally Posted by Mrsteno2369

Is better to have them then to not? like will it overheat with ought them

if you have the money get them coated. there will be no performance difference. your engine bay may be a few degrees cooler.

you're not going to notice it...

[mweisdorfer]

You will need a tune like jb4 or MHD, or you'll blow CEL codes

[Jeff@TopGearSolutions]

If you compared one vehicle against the other, you'd notice the engine bay temp difference.

On the street it might be negligible but they are actually an improvement overall when coated.