The exhaust note changes and my exhaust pops under deceleration.

Does anyone know specifically what the sport button does to make this happen? Timing? Egt?

 

How come I never hear my exhaust pop?

 

I hear the same pop, I have a AT

thinking to upgrade to this :


RENNtech ECU Upgrade for Mini R60 Countryman S 2WD/ALL4 w/ N18B16 Turbo

• Note: Calibration for Mark 2 Mini’s can be activated with the sport button

Stock Performance for Cooper S Mark2 (w/ N18B16 Turbo):

• 181 HP @ 5500 RPM / 192 TQ @ 1700-4500 RPM

Modified Performance:

• 221 HP @ 5500 RPM / 232 TQ @ 1700-4500 RPM

Price: $945

 

Ummmm check out nm engineering...500 bucks. 1000 is a joke!

 

thanks ^ I will look into this one.

 

http://www.nm-eng.com/260/0/0/2875/n...cu-tuning.html

 

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It's not that loud when you're in the driver seat. Turn off the radio, open the windows, accelerate hard, and then back off the accelerator for a moment. You should hear "pop pop pop."

 

Lost most of my pop after the upgrade was done for the accelerating issues.
Reclaimed most of it back when swapped out the stock exhaust for the JCW!

 

I have a very new (build July 2012) countryman. Using the sport button I get a faint pop pop from the exhaust, but only when I come off of it sharply from 3/4 or full throttle. When I test drove one back in July it had much more sound from the exhaust. Maybe the newer ECUs are a bit different?

Also been thinking about a ECU upgrade. ECU tuning group can do our cars for $595 and the gains look impressive. It has been discussed on NAM before.

 

A couple of things:

1. The maximum gains from the $500 NM Kit (+35 whp and +56 wtq) can only be had with the addition of an intercooler kit. The $500 NM kit (without the intercooler) rates at +24 whp and +31 wtq.

2. I imagine that at $700 (+labor), the Alta intercooler kit for the R56 might be fairly representative of the additional cost required to get to the NM Stage 2 numbers (+35 whp and +56 wtq). That's at least $1200 for +35 whp and +56 wtq.

3. NM has calculated driveline HP loss to be about 11.38% and driveline torque loss to be about 12.08% for the R56. Those numbers may or may not be appropriate for the R60 S, but I suspect a greater loss (especially on the All4).

4. The $925 Renntech kit expresses their gain (+41 bhp and +40 btq) in brake horsepower/torque without the driveline loss factored in. Using NM's driveline loss factors (11.38%/12.08%), the Renntech gains could then be adjusted to +36 whp and +35 wtq.

Therefore, the Renntech kit delivers +12 whp more than the NM kit and +4 wtq more than the NM kit. Now, it's up to the individual buyer to determine if an increase in 12 whp and 4 wtq over the $500 NM kit is worth an extra $425 ($925 vs $500).

Conversely, it is also up to the buyer to decide whether the additional $275 ($925 vs $1200+) for the intercooled NM kit (bringing -1 whp and +21 wtq vs the Renntech kit) is worth the additional cost.

HTH,

 

I hate that freakin' poppin' sound, just sayin'....

 

since we are talking sounds...does anyone think the CMS engine is a bit loud (not in sport mode) either idling or driving around town in low speeds? to me when idling it sounds like a small truck. what do other CMS thinks?

 

Quite the opposite. I think it's too quiet.

At idle it does sound a bit like a diesel, especially when the engine is cold.