Baby45AMG

So everything I've researched on the M133 is that it is limited to about 480bhp with the stock Mercedes fuel pump. Other than shelling out $1700 for AMS hpfp or touching engine internals, the only other way to extrapolate more power out of the M133 is with water methanol injection, which can take it to approximately 550bhp with the right tuning. (correct me if I'm wrong about this)

Below are a list of the best quality/price parts I've put together which should let anyone easily max their M133 on the smallest of budgets.

All parts sourced from reputable companies, no ebay junk!

Pipercross 4" air intake: $149euro, about $181usd
https://willow-performance.myshopify...air-intake-kit

RVG Performance downpipe and mid pipe: $399
https://www.rvgperformance.com/shop/...45-cla45-gla45

Venom hybrid turbos, hybrid 470: $750euro, about $900usd
https://venomhybridturbos.co.uk/coll...5-turbocharger

Willow Performance Stage 3 tune: $799euro, about $971usd
https://willow-performance.myshopify...tune-my-genius

There you have it! A 400-420awhp (mid-upper 11's) Stage 3 CLA45 for just $2452 in upgrades!

Optional/Recommended:
Turbosmart BOV: $200
Wagner Aux heat exhanger: $500
Resonator(s) delete: $100-$200
AEM Water-meth injection kit: $550 (potential of 430-445awhp)

I've heard people can actually max the M133 on the stock turbo with a downpipe, mid pipe, intake, and a very aggressive tune, but most stage 2's (including mine) land around 420-430bhp.

Additionally you could sell the OEM downpipe and recoup a third of your costs for even more savings!

Penny for your thoughts...

prematureapex

Hey, did you ever wind up doing this? I'm about to pull the trigger on a similar setup (Pure550 with the Willow Stage 3 tune). I'll add a cooler soon after.