I was looking around at mini mania, and I found that Borla had 2 different exhaust systems for the MCS. I was wondering if anyone had any information about the new "Sport" exhaust. It looks lighter then the old borla and says the tone is more aggresive, so maybe it makes a little more HP then the old one.

Borla Sport

 

I BELIEVE the only difference is the tone and volume. The sport being louder and more aggressive. Don't think it will be very popular b/c most people getting the Borla are looking for less volume with some power.

 

Please do a search to find similar threads that have already addressed your question.
A search finds:
https://www.northamericanmotoring.co...pic=9569&9

The bottom line is that the Borla Sport for the MCS is much louder than the regular exhaust that Borla makes.
It may have small improvements for HP over the regular borla for the MCS. The loudness is very loud like a V8 someone mentioned. The tail pipes might angle down a bit- different from the borla- I think those tips are fine.
The loudness is close to Magnaflow but the HP gains from Magnaflow are superior so if you are going to have a loud exhaust- and you want to enjoy some added power then go with Magnaflow. Borla is also known for having a lot of separate parts which makes installation a little harder with more potential for air leaks.

Don't hang around loud exhausts for too long or this might happen to you:
Effects of too much exhaust fumes
Link-thanks to Cooperspeed

 

THAT PAGES IS SO FUNNY!!!

 

Well, I guess now that the car is on the trailer headed down to California Speedway I can let the cat out of the bag.

While the Quicksilver exhaust we sell is perfect for lighted modded MINIs, it's not ideal for high HP MINIs. Once you put in the pulley, chip it, and add headers and throttle body work and/or head work the Quicksilver exhaust is creating too much backpressure. We had RENNtech do some EXTENSIVE testing with many, many different muffler setups on our high output engine setup (custom head with smoothed intake/exhaust ports and larger valves and Schrick cams, 63mm throttlebody, pulley, EVOtech2.0 chip, London Stainless header) and they found that the Borla Sports exhaust tested best. It had the least amount of backpressure with the best straight thru design. It made MORE power than the Magnaflow did. The Magnaflow's use of the intersecting pipes was simply not effecient at high flow rates.

Yes, we will most likely begin selling the Borla sports exhaust for similar setup MINIs. :smile:

And oh my does it sound beefy!!

R

 

Davbret-
If you do a full hipower perf upgrade to a MCS and use the QS vs magnaflow or the Borla sports exhausts- what is the relative difference in HP to the wheels- approximate estimate will do.

Is it in the range of 5 HP or more like 10? 10 would be alot but 5 or less would be acceptable in order to get a little less loud sound (hopefully less chance for droning) and lower weight (20 pound difference). I do mostly street driving and a little driving school now and then so absolute high power is not something I can make use of regularly. For a person who can make use of the extra power and lower backpressure then that is fine. Would the increased backpressure hurt the engine or overwork the engine and wear it out faster? That would be bad.

Also when available the exhaust system you are missing from your equation and needs to be checked against the rest is the UUC. Maybe 2 weeks away.

 

I've only heard what Hartmut at RENNtech was telling George (of Madness). Haven't seen any dyno sheets. But Hartmut's big point was backpressure. The Quicksilver was effectively REALLY heating up because flow couldn't get thru quick enough, proof that more power is to be had. While the Magna was ok, he severely critised the use of the intersecting pipes, calling it ineffecient at high flow.

He basically said that a high hp MINI needs the most straight thru design possible. At this time the Borla Sports fills that bill.

If you are keeping to intake/headers/exhaust you'll do fine with Quick or Magna. It's once you add the pully and/or the head or throttlebody work that there's too much flow for those systems to adaquently deal with it effectively, and with the most hp/tq possible. Hartmut was using TONS of race experience and dyno results to come to this conclusion. I trust him completely.

R

 

I would think that a standard Cooper exhaust aftermarket exhaust would be the most "straight"

--
Cheese

 

davbret your bringing your mini down to the Cali speedway? are you doing some test or something? I live down the street from the speedway can I come check it out or is it off limits to the public?

 

We're taking the Mad MINI, the same EB/W MINI that zooms across the top of the performance mods section. On tuesday the magazine editors/writers will be driving the various cars around the canyon. Then on weds they'll be flogging the living crap out of them on the infield course at Cali Speeway. I don't believe this is open to the public, but you could always try!

R

 

if the quicksilver and magnaflow exhaust systems would have to much backpressure with other mods then why would mini-madniss make a stage 2 package with the exhaust, pully, intake, and ecu upgrade. They claim that all of their products and packages are tested in over 100mph tests so it seems that it would be alright to have these mods but i duno, just a thought.