Downpipe tune

Zaccc_330 · 06-27-2025, 11:18 AM

Hello, here is my custom downpipe tune gen1 b58 on hot day. Only mod on the car is downpipe on e5 100ron fuel. Only limit for now was hpfp, so the question is will the tu pump be good for 500ish hp?

G31_540i · 06-30-2025, 02:39 PM

You could get 500bhp with TU HPFP but not on 100 ron, you would need an E30 tune to get close to 500bhp on the stock turbo, and at that power it’s being pushed pretty hard. 465-475 seems the sweet sport for stage 2 + on 99 Ron

06-27-2025, 11:18 AM	#1
Zaccc_330 Registered 5 Rep 3 Posts Drives: g30 540i rwd Join Date: May 2025 Location: Croatia iTrader: (0)	Downpipe tune Hello, here is my custom downpipe tune gen1 b58 on hot day. Only mod on the car is downpipe on e5 100ron fuel. Only limit for now was hpfp, so the question is will the tu pump be good for 500ish hp? Attached Images
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06-30-2025, 02:39 PM	#2
G31_540i Private 75 Rep 139 Posts Drives: G31 540i Join Date: Jun 2024 Location: Scotland iTrader: (0)	You could get 500bhp with TU HPFP but not on 100 ron, you would need an E30 tune to get close to 500bhp on the stock turbo, and at that power it’s being pushed pretty hard. 465-475 seems the sweet sport for stage 2 + on 99 Ron
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