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      05-01-2019, 11:51 AM   #40
Watsey
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United Kingdom
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Drives: F31 330D sDrive M Sport
Join Date: Jun 2015
Location: Herts, UK.

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Quote:
Originally Posted by Enabled View Post
Deleting is overrated.
A properly calibrated tune will make the same power without damage, vs. a deleted car. A good tune can work with those items, at the same power levels.

The same size dpf and catalysts flow without being restrictive, even when used on the biturbo euro 325d.
^^ this.

I don't see why US tuners are recommending/insisting on the deletion of emissions equipment (presumably, specifically, the DPF) for a regular remap, i.e. not crazy increases.

My 330d has all the OEM hardware in place and is making 350bhp/525lbft, around 90bhp above the published stock output. Zero problems over the 50K+ miles that it's been in this state of tune.

The DPF is there for a very good reason, and there's really no need to remove it if the tuner knows what they are doing.
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Current : F31 330sD, DMS remap, XHPflashtune, Ohlins Road & Track, Millway Motorsports top mounts, SuperPro poly bushes, Quaife LSD, Stoptech Trophy front BBK / Stoptech discs rear, Pagid RS4-2 and RSL1 pads, H&R/Eibach ARBs.