Hi,
beeing around for a year now I decide to do my first thread. I had a N54 E91 wagon for 7 years and sold it last september :-( It was bone stock when I bought it. Sold it FBO with TTE550 hybrid´s and meth tuned by V8bait (the greatest guy i met for a long time). The car was my dreamcar. I was almost about to cry when i saw it driving away... However, things changed fast and I was lucky in a very desperate time (i had a bad divorce... but thats a different story). I met my future car - and thats where the story starts now
Its a 2019 F31 320i B48 melbourne red with 31k miles on it. My first impression was "Dude, u serious". The car felt like it was not moving even when i was on WOT. The 184hp felt really terrible. I had doubt buying this car. But as it was a real steal and i knew the potential of the B48´s. I decide to give it a try. The second day it was already flashed with a Stage1 from MG Flasher. It felt like the power was doubled. I did a dyno run with perfexpert (mobile app) and it shows some 278hp and 365NM (both flywheel). I know thats not really the exact numbers, but lets take it as a reference point for now.
The only thing i was not happy is the low rpm behaviour of the small 4 cyl engine. The transmission is shifting gears way too early if you ask me. The car was kinda shaking on high gears in low rpm´s. However, I knew the Stage 1 was only the beginning so i decide to wait flashing the transmission with XHP. Meanwhile the Downpipe was in progress. The OEM cat was cut off and replaced with a EU6 300cpsi cat. It took me 10 days to get it back from the shop, but man it was like christmas for me when it arrived Installed the DP and flashed Stage 2 MG Flasher together with XHP Stage 3. Also i did a bargain on a K&N replacement filter which i bought "used" on amazon. It came in a pristine condition, only the box was slightly damaged. Managed to get a charge pipe, inlet pipe and a full exhaust system with the GPF removed and the Resonator deleted as well. Yea... i was really on fire getting some nice parts for the new car
The car is now what it is supposed to be as a modern 2.0 turbo twin scroll motor. I was not able to do a perfexpert dyno run with all the mods, but the numbers shown in the logs are 319hp and 418NM fly. I ll post the dyno numbers once available. By the way, i saw a back to back dyno from a B48 Stage1 where only the Filter was replaced. It showed a gain of 15HP (from paper to K&N drop in). Sure, there may be some adaption by the DME later on and it may drop a bit - i dont know. But the fact the gains were there is just impressive from only a drop in.
Last but not least, i also bought a snow performance stage 2 meth kit... yea, it is what it is. I love cars and i love to mod them. And knowing of the advantages meth gave my N54 it was a must have on the B48. I just did not manage to install it. Hope i can complete it the next two or three weeks. Cant wait to see it take off - he he he. Bezos, if you need a Rocket to the moon, drop a comment here.
The XHP Stage 3 changed the 8hp quite a bit. To be honest, i was very pleased with the factory setup. The shifts were fast and it never was "a bad thing" in any situation. But with the XHP Stuff the shifts are like DCT shifts (and the limiters were removed which was the main reason i flashed XHP). Low throttle shifts are smooth as butter. WOT shifts are hard and fast as fuxx. Still, it did not change the low rpm shaking on high gears... it s much better with all the mods, but not gone. Most improvement was the high flow cat and the GPF delete for the shaking. Maybe XHP can fix it with a special setup for the small 4 bangers. Just let them rev higher a bit and shift later. 500 rpm´s should be just fine to fix the small problem.
beeing around for a year now I decide to do my first thread. I had a N54 E91 wagon for 7 years and sold it last september :-( It was bone stock when I bought it. Sold it FBO with TTE550 hybrid´s and meth tuned by V8bait (the greatest guy i met for a long time). The car was my dreamcar. I was almost about to cry when i saw it driving away... However, things changed fast and I was lucky in a very desperate time (i had a bad divorce... but thats a different story). I met my future car - and thats where the story starts now
Its a 2019 F31 320i B48 melbourne red with 31k miles on it. My first impression was "Dude, u serious". The car felt like it was not moving even when i was on WOT. The 184hp felt really terrible. I had doubt buying this car. But as it was a real steal and i knew the potential of the B48´s. I decide to give it a try. The second day it was already flashed with a Stage1 from MG Flasher. It felt like the power was doubled. I did a dyno run with perfexpert (mobile app) and it shows some 278hp and 365NM (both flywheel). I know thats not really the exact numbers, but lets take it as a reference point for now.
The only thing i was not happy is the low rpm behaviour of the small 4 cyl engine. The transmission is shifting gears way too early if you ask me. The car was kinda shaking on high gears in low rpm´s. However, I knew the Stage 1 was only the beginning so i decide to wait flashing the transmission with XHP. Meanwhile the Downpipe was in progress. The OEM cat was cut off and replaced with a EU6 300cpsi cat. It took me 10 days to get it back from the shop, but man it was like christmas for me when it arrived
Installed the DP and flashed Stage 2 MG Flasher together with XHP Stage 3. Also i did a bargain on a K&N replacement filter which i bought "used" on amazon. It came in a pristine condition, only the box was slightly damaged. Managed to get a charge pipe, inlet pipe and a full exhaust system with the GPF removed and the Resonator deleted as well. Yea... i was really on fire getting some nice parts for the new car The car is now what it is supposed to be as a modern 2.0 turbo twin scroll motor. I was not able to do a perfexpert dyno run with all the mods, but the numbers shown in the logs are 319hp and 418NM fly. I ll post the dyno numbers once available. By the way, i saw a back to back dyno from a B48 Stage1 where only the Filter was replaced. It showed a gain of 15HP (from paper to K&N drop in). Sure, there may be some adaption by the DME later on and it may drop a bit - i dont know. But the fact the gains were there is just impressive from only a drop in.
Last but not least, i also bought a snow performance stage 2 meth kit... yea, it is what it is. I love cars and i love to mod them. And knowing of the advantages meth gave my N54 it was a must have on the B48. I just did not manage to install it. Hope i can complete it the next two or three weeks. Cant wait to see it take off - he he he. Bezos, if you need a Rocket to the moon, drop a comment here.
The XHP Stage 3 changed the 8hp quite a bit. To be honest, i was very pleased with the factory setup. The shifts were fast and it never was "a bad thing" in any situation. But with the XHP Stuff the shifts are like DCT shifts (and the limiters were removed which was the main reason i flashed XHP). Low throttle shifts are smooth as butter. WOT shifts are hard and fast as fuxx. Still, it did not change the low rpm shaking on high gears... it s much better with all the mods, but not gone. Most improvement was the high flow cat and the GPF delete for the shaking. Maybe XHP can fix it with a special setup for the small 4 bangers. Just let them rev higher a bit and shift later. 500 rpm´s should be just fine to fix the small problem.
Last edited:
