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Discussion Starter #1
Hey guy's I have an E60 M5 and would like to modify it and invest about 10k into it and would like to get 600 hp out of the engine without turbos or superchargers.

Basically I would like you to mention a bang for the buck modifications.

I will be putting in RPI pulley, Dinan air boxes. Corsa exhaust system section 3 because it has a nice free flow design to it.



I know that a tune needs to be done but which one is best?


ATM I only have K&N air filters.

Sound off below. ..if you can give me examples of parts and tune comparisons as I am new to this V10 beast.
 

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How about going all RPI? :)

Search for threads on here and vids on Youtube and you won't be disappointed.
 

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Discussion Starter #4
Ok so headers that are cat less is a good one and of course there is a member here that is decatting the stock ones...but exhaust manifold where do I get one and a good one...honestly haven't looked into that that much. If you can link some suggestions please.
 

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Discussion Starter #5
EuroCarFan going all out RPI is a lot of dough...I'm going for the common sense bang for the buck...I pretty much know that turning will be 1500 alone but which company to chose from since I'm in California.
 

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You can go all RPI for around 10 G's homes. And the headers from Rpi are great because they come with removable flanges which make passing smog easier than removing the whole header this is especially good for you being that your in CA. Your not going to get 600hp though, you'll be more like 575. 600 hp with only bolt-ons is pretty tough although Evolve might have more aggressive tunes that may help to achieve your number. Not sure if your car will like it though.
 

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Like MIGHTY said, you can go all RPI including the oil cooler for a little less than $10K. The full exhaust (sections 1-3) is about $3K which is what some manufacturers charge just for sec 3. Headers is $3495 which is a significant reduction from what they used to list at when they first came to market. Then $2155 for scoops, filters, block-off plates, pulley and oil cooler and you're at about $8650. Round it off with a tune and you're right there at around $10K. :) Take $1300 off if you don't need the oil cooler but it gets hot in Sac and this could help keep your car running cool.

On a different note, subscribe to this NorCal Members thread so you can get notifications of upcoming meets and hopefully you can join us one of these days: http://www.m5board.com/vbulletin/usa-west-forum/136948-norcal-bay-area-members-thread.html
 

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Oh and for the tune, most companies offer options to use handheld flash loaders or allow you to use your laptop with a cable to upload tunes yourself instead of having to physically go somewhere.
 

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Discussion Starter #9
Thanks a lot guys...what do you think of the throttle bodies from Dinan? Worth it? Since I'm going to have their intake boxes because I've seen them personally and they make too much sense to put them on and especially how they're designed.

And about the oil cooler you guys are right In Sacramento it gets way too hot and would like to protect the engine as much as possible and keep it running cooler.

Euro I will definitely come over to one of the meets.


I am still putting the car together....Took some things apart for complete inspection and being inspected by an M5 specialist because I bought the car not long ago. So hopefully I'll make it in may.
 

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Dinan throttle bodies - Don't know anyone that has them except for guys with the full stroker engines who usually get all the additional mods like intake, TBs, exhaust..etc.. and in those cases, you can't tell what improvements those TBs make alone since the power is mainly from the stroker. Some feel they're not worth it for the amount of money and I'm surprised you're considering them when you want "bang for the buck" mods.

Dinan intakes - I had them on my car before and sold them cause I was thinking of getting the ESS SC. Some on here thinks they don't add any power but I did feel a difference when I had them on and when I took them off. The car was more responsive with them installed. For the price though, most prefer the RPI scoops or the new Evolve Venturi intakes. Then again, you can also have the scoops with the Dinan intakes if you really want to get them. RPI tested an M6 with Dinan intakes and scoops and the scoops showed gains on top of the Dinan boxes.

Dinan diff - it's actually an 8% increase to the wheels. Main complaints about them in the past have been about the whine but not all owners had this problem. This is something I'd like to have too since the increase torque down low would be great for driveability around town.

Who is the M5 specialist working on your car? I'd like to recommend Mark Osoteo who's working at German Motors in Folsom. He used to work at SonicMS down here in San Jose and did my engine replacement and SMG pump swap last year. He's a BMW master tech that moved up here from SoCal and used to do engine replacements and SC installs and stuff at Pacific BMW. German Motors -
 

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Discussion Starter #12
Yeah I feel that we are going to have a long conversation when I get to one of the meets lmao.

For me it's worth it modifying my M5 because it's only 54k on odo. So we will be talking some more.
 

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The Rpi Oil Cooler helps to cool your car down faster not make it run cooler. That being said if your running a less aggressive tune the oil cooler won't be necessary. But if your like most other people your going to want to run an aggressive tune so you can really feel the difference. Evolve is also a great option, they continue to make some great products and they update their tunes free of charge. Both companies are great, I personally went with RPi on all my mods and don't regret a thing. Dinan's products are far too conservative for my taste and far too expensive as well, although they won't hinder any BMW warranties. Good luck and happy modding.
 
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