Quality budget build, 480bhp for less than $2.5k
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...
Last edited by Baby45AMG; May 10, 2021 at 04:02 AM.


