BMW E90 N52 - Secondary Cat Delete POV 

Oh it’s necessary

For real dude! This quarantine shit sucks! Hopefully it ends pretty soon haha

I got mine during bro, you can do it! Join us!

Michael Hart yeah I just got mine a couple days ago!

@@ImEricedo you regret saying this now

How loud?

Is it just the secondary cat you delete? Leaving muffler and resonator

@@twepchapo7665 straight pipe from the headers

Yeah I've noticed. I'm getting it replaced soon :)

Did replacing the starter cure that slow start/crank? My E92 325i has started to sound exactly like that.

Pierre Ricardo I cant smell anything with this setup

I've heard some other people haven't had any smelly fumes, but mines smelled quite a bit. The intake made the car run a little more rich which explains some louder burbles than what I've seen from other people with their setups. Some days it won't burble as loud, but luckily the day of this video was one of the times where my car goes all out with the burbles haha. If the intake is making you run lean, try unscrewing the battery and leave it off for 10 minutes so the ECU can be reset to properly adjust to the A/F ratio. Otherwise I would advise looking into cleaning/replacing your MAF sensor.

I think If you get a secondary cat delete and buy an aftermarket muffler that’s not as big as our stock ones it would sound calm but still get the crackles of the cat delete

I actually am using the Stage 3 tune of the XHP TCU flash. I just loved how immediately my car shifts now compared to its stock sluggish shifts.

ImErice Thanks, I installed it today, have to drive slowly the first 100km. Are your shifts always smooth, or can you feel sometimes a little harshness? Moreover I like how you shift it like a manual transmission (no throttle during shifts), but do you think this is good for transmission to reduce throttle input during shift? xD

Depending on much throttle is applied, usually anything less than 25% throttle would always be smooth shifts. Anything more applied to the throttle and the shifts get harsh, but it will shift pretty fast. And yeah it's a habit of mine to let off the throttle to shift lol. I drive a few manual cars here and there and usually I let off the throttle to shift so I don't bounce my rev limiter haha. It shouldn't harm the transmission considering you're only letting off the throttle after each shift.

XHP only works on the ZF transmission

@@notmyhandle88 Yes, only ZF. I have a ZF 6HP19 first generation transmission in my e90 325i 2007.

Can you describe the noise? I'm not too sure on exactly what you mean

Best comment I have seen yet 😂

Haha no man that's fine! You can definitely use other tunes along with XHP. XHP is just a transmission flash and does not write over the DME or the ECU. So if you have MHD, JB4 or any tune, you can use XHP along with it.

im noticing the same. also with a k&n filter lol

Yeah it goes down because you f*** with it more because you like listening to it

I haven't had much luck with doing burnouts since mines is an automatic. With drifting and sliding around, it is VERY easy to do once you lock up the wheels. It's a little harder to do donuts considering none of the 3 series had an LSD with the exception of the M3's, but it takes some practice around abandoned parking lots for you to learn how the car slides. Of course if the pavement is wet, you will have no problems sliding around. It's a lot of fun haha

@@ImErice Wow so even with urs being Xdrive? It can slide well? Do you use M1 or M2, doesnt it shift up the gear tho?

I use the first gear for the most part to initiate my drifts, second gear if I'm trying to maintain that momentum while I'm doing donuts. Normally it automatically shifts up to the next gear, but I have the XHP TCU flash tune which makes my rev limiter bounce off instead of automatically shifting to the next gear.

@@ImErice Wow! there is a flash tune for the e90s?

@@ImErice please show a video of a drift or a rev limit bouncing

Yea there louder and more frequent i got my 328i with no muffler , no res and no sec cat , the burbles are way more. literally just tap on the gas and it pops.

@@richgangg2407 is your check engine light on from that?

Look up XHP flash. It's a flash tune that gives you the option to have your rev limiter bounce instead of shifting into next gear

M3 rep bumper

you need to get into the secret menu. search it up

Secondary cat delete decrease mpg*

actually increases gas milage since gases can flow freely and less restricted. mine has gone up from 17.5 to about 18.2 since i got my secondary cats removed a few months ago.