Going to be making some mods to my mini and want to know the pros and cons of them.

The first mod is doing the delete turbo exhaust. Was planning on just removing the exhaust and adding a piece of stainless or alumnium tube is it's place. What kind of hp gains can I expect from this? Will it be too much air for the stock intercooler to handle?

2nd mod is adding a cai. Was thinking of this one
K&N 69-2004TTK 69 Series Typhoon Black Air Intake Kit

K&N claims 11 HP gains by adding this. I've also seen this one


AEM 21-699C Cold Air Intake System

AEM claims 14 HP gain. $100 more dollars than the K&N to gain 3 HP. I imagine with this one I would get more air suction noise during had excellerating.

Is there any negatives to during either of these mods. I dont want to add anything to my mini that's going to hurt it in the long run.

Any and all input is welcome
Thanks!!

 

I would watch mightycarmods video on pod filters, and cold air intake myths busted. Watch them and realize that without a tune, a filter or cold air kit don't really make a noticeable performance difference, unless a car is tuned to make use of them. If that's in your future it might be worth a little money, but honestly the stock airbox is a good design.

 

What year do you have? If you have a N18 engine the JB+ will get you real power gains without doing all that other stuff

 

I have a 2008 s. Is the jb+ a tuner? How much hp gain can one receive with that alone?

 

N18 engine is 2011+ so the JB+, a tune, doesn't apply to your application.

 

there's always a manic mini tune for your N14 :-)

 

Both HP gains for just a CAI are pure marketing.....near total BS....
Only difference is the fine print... Both are "up to" so was the highest observed, likely on ANY MAKE MODEL TESTED EVER...
If you get more than 2-3 HP I would be surprised.....

 

Forget the CAI: absolutely no HP gain. A Manic tune and delete the cat(s) would be good for 20-30hp.
Guy was selling an ALTA 3" exhaust here last week. I have and love it along with a 3" DP. Very little to no drone and sounds wonderful.

 

Agreed, but they DO sound good.

 

Hi - what does deleting the turbo exhaust mean?

I appreciate what the turbo is and I appreciate what the exhaust on the car is.

Do you mean throwing the exhaust away entirely?

Assuming this is a typo or maybe it means something else like deleting the sound muffler that sits in the pipe from the turbo outlet (the outlet that provides compressed air and leads to the intercooler).

Cheers - You have good advice already on this post, so I am just interested what you meant.

Thanks
Steven RW

 

What I gather from "turbo exhaust" is the Downpipe. The downpipe carries the catalytic converter which is a restriction in the exhaust system. Of course my assumption of what mazeone is saying could be completely wrong.

 

Steven RW. Correct when you say the sound muffler that sits in the middle of the pipe fixture. Have heard it makes the turbo breath easier. After educating myself a little further I'm not so sure that's the case.

 

The hot side muffler on the compressor side of the turbocharger, is engineered for the MINI's intake system, adding a straight pipe will gain you no horsepower, but will make it a little noisier.

 

A turbo back exhaust is deleting all restriction after the turbo.
Getting a catless downpipe and deleting the cats.
Basically after the turbo it is a straight free flowing exhaust. Apart from the muffler