2009 BMW M3 Dinan?

Hello everyone,

I came across a 2009 bmw m3 convertible with Dinan 4.6L V8 Engine, Dinan Free Flow Exhaust, Dinan Front and Rear ST2 Brake Kit, Dinan 3.63 Limited Slip Differential, Dinan High-Flow Intake, Dinan Stage 3 Suspension, Dinan Throttle Body S65 V8, Dinan Underdrive Crankshaft Pully Kit.

I did not intent to purchase a m3 convertible with so much modification and improved performance parts; however, this seems like a great deal since the previous owner spend 40,000+ dollars on all the Dinan parts and the car is selling for around 55k. This is about 10k more expensive than other 2009 m3 convertibles. The Dinan engine alone is worth about 20k, so it seems like a good deal.

However, I am not a track person and have very little knowledge about Dinan parts. So i come here today hoping all the experts here can tell me whether or not I should buy this car.

The factors that concerns me are:

Reliability- Since the previous owner replaced most of the stock parts, how reliable is the car now? Will it have a lot of problems? More maintenance cost? How long will the car last? Does all the improved parts like the new engine shorten the cars life?

Resale value- Since most of the parts are not stock anymore, will it affect the resale value of the car when i decide to sell it few yeas from now? Will any dealership buy this car without the stock engine and everything? will it lower the resale value or increase it?

Performance/gas consumption- I realize that with all the new Dinan parts, the performance of the car on the track will improve greatly. But since I do not track much, I'm more concerned with the everyday street performance. Will the car be less comfortable and harder to drive on the street? During the test drive, I noticed a bit of lag when I give it gas from a stop sign or stop light when the power button is not on. It feels kinda like turbo lag. Is this due to the new engine or other Dinan parts? When the power button is on then the lag is gone also. I did not notice any lag without the power button in the other stock m3 I drove earlier that day. Also, does the new engine eats more gas on the street?

Why do you want to buy this car?

Because it seems like a good deal on paper and it is the only black e93 around town ( i prefer black or white).

Then it is the wrong car for you.

Originally Posted by MMME30W

Then it is the wrong car for you.

Obviously I know this is not the exact car I was looking for, otherwise I would not have made a post about the car here. Like I have mentioned in the post, I am interested in the car because it seems like a good deal and an exciting car, but I am unsure about many things on the car. So I came here looking for some answers.

While I appreciated your comment, I did not get any answers or useful feedback from it. I hope that someone who is more knowledgeable will be able to give me more useful answers on my questions and concerns.

Thank you in advance.

Originally Posted by Dreamerxyz

Hello everyone,

I came across a 2009 bmw m3 convertible with Dinan 4.6L V8 Engine, Dinan Free Flow Exhaust, Dinan Front and Rear ST2 Brake Kit, Dinan 3.63 Limited Slip Differential, Dinan High-Flow Intake, Dinan Stage 3 Suspension, Dinan Throttle Body S65 V8, Dinan Underdrive Crankshaft Pully Kit.

I did not intent to purchase a m3 convertible with so much modification and improved performance parts; however, this seems like a great deal since the previous owner spend 40,000+ dollars on all the Dinan parts and the car is selling for around 55k. This is about 10k more expensive than other 2009 m3 convertibles. The Dinan engine alone is worth about 20k, so it seems like a good deal.

However, I am not a track person and have very little knowledge about Dinan parts. So i come here today hoping all the experts here can tell me whether or not I should buy this car.

The factors that concerns me are:

Reliability- Since the previous owner replaced most of the stock parts, how reliable is the car now? Will it have a lot of problems? More maintenance cost? How long will the car last? Does all the improved parts like the new engine shorten the cars life?

Resale value- Since most of the parts are not stock anymore, will it affect the resale value of the car when i decide to sell it few yeas from now? Will any dealership buy this car without the stock engine and everything? will it lower the resale value or increase it?

Performance/gas consumption- I realize that with all the new Dinan parts, the performance of the car on the track will improve greatly. But since I do not track much, I'm more concerned with the everyday street performance. Will the car be less comfortable and harder to drive on the street? During the test drive, I noticed a bit of lag when I give it gas from a stop sign or stop light when the power button is not on. It feels kinda like turbo lag. Is this due to the new engine or other Dinan parts? When the power button is on then the lag is gone also. I did not notice any lag without the power button in the other stock m3 I drove earlier that day. Also, does the new engine eats more gas on the street?

This alone answers your resale question. In regards to the performance, this car will obviously drink a little more gas (it's a stroked engine)......the ride quality will be subjective, and the M button is not a power button (it alters the throttle sensitivity and other programmable features. I would say since you have no desire to track this car or drag race from light to light, look for another one. If this is your first M car I suggest you experience it in it's stock form first. This could offer more performance than you really want. Hope this helps some...............Phil

You dont track convertibles, dinan warranties there parts like BMW so the reliability is there, u will not get money for the mods they r a money pit, so u r not going to be ahead by much based on mods on a car that can't really b tracked

Sent from my ADR6350 using Bimmer App

Hint. Mods don't add value to car. At this price you are significantly overpaying.