Catless Downpipes

[(H)]

Did quite some search on the forum and couldn't find any consistent answer. Apologies, if I missed the right thread for this:

1) How much difference in whp do catless downpipes make?

2) How much difference in sound do catless downpipes make?

I have only seen videos and posts where catless downpipes were part of multiple other tweaks, most notably exhaust mods. So it is really hard to see/hear the difference of just catless dps over a bone stock exhaust system.

Thanks for your insights.

H

[Fantasm]

50whp+ with just the catless dp's, more if you have a tune
probably 30% increase i would guess

all you really need is catless dp and tune and you will be making a bunch of power

[shahano]

Just could not live with having the CEL light on at all times. It would drive me crazyyy

[M-bitious]

Then get them from simon motorsport Dubai. These don't throw a cel.

[PetrolFumes]

Originally Posted by M-bitious

Then get them from simon motorsport Dubai. These don't throw a cel.

From where ? What brand is this?

[M-bitious]

It is their own brand.
www.facebook.com/simonmotorsportdxb
Ask Franz, his number is on the pages.

[PetrolFumes]

Originally Posted by M-bitious

It is their own brand.
www.facebook.com/simonmotorsportdxb
Ask Franz, his number is on the pages.

How long have you been running them?

[M-bitious]

Couple of thousand miles. They have miniature kats in them, so it can't throw a cel. About half an inch thick.

[Timberwolf]

I will say that the F10 M5's CEL is very discreet and sort of not visible when you are driving cause it is hidden by the steering wheel. I have my canceled by the old burger CAN tool but they no longer sell that. I did drive with the CEL for a few months cause it didn't bother me. lol

[shahano]

Originally Posted by Timberwolf

I will say that the F10 M5's CEL is very discreet and sort of not visible when you are driving cause it is hidden by the steering wheel. I have my canceled by the old burger CAN tool but they no longer sell that. I did drive with the CEL for a few months cause it didn't bother me. lol

i still feel it would drive me nuts.

[gmd2003]

Originally Posted by M-bitious

Couple of thousand miles. They have miniature kats in them, so it can't throw a cel. About half an inch thick.

Micro cats don't work on US cars. , our emissions are stricter than ROW .

[shahano]

Originally Posted by gmd2003

Micro cats don't work on US cars. , our emissions are stricter than ROW .

As a Euro car, would it not light my CEL light?

[shahano]

Also, wouldnt you need a tune to make a catless downpipe actually gain the right amount of power?

[gmd2003]

Originally Posted by shahano

As a Euro car, would it not light my CEL light?

According to Supersprint they worked on their Euro spec test cars .

[Andym3100k]

Originally Posted by gmd2003

According to Supersprint they worked on their Euro spec test cars .

I thought I wouldn't get the CEL light but today it finally pop up after about 500 miles, shit!

[AstonMartian777]

LOL, I'm sure with any other brand, it wont pop up right away either, every few days just go to autozone and reset the cel

[Andym3100k]

Originally Posted by AstonMartian777

LOL, I'm sure with any other brand, it wont pop up right away either, every few days just go to autozone and reset the cel

U can reset the CEL light by using yr cellphone with the plx kiwi 2 OBD plug in system in less than 10 second.

[Spinny02]

Originally Posted by Andym3100k

U can reset the CEL light by using yr cellphone with the plx kiwi 2 OBD plug in system in less than 10 second.

I can read my codes from Plx Kiwi 2 and use Dash commander but when i hit clear codes it never works? anyone else have the same issue?

JS

[turbo8765]

Originally Posted by Fantasm

50whp+ with just the catless dp's, more if you have a tune
probably 30% increase i would guess

all you really need is catless dp and tune and you will be making a bunch of power

Supersprint got 8 whp from FULL exhaust with high flow cats. Removing the high flow race cats is not worth anywhere near 42+ whp.

http://www.supersprint.com/en/IT/pro...v8_2012__.aspx

[Andym3100k]

Originally Posted by Spinny02

I can read my codes from Plx Kiwi 2 and use Dash commander but when i hit clear codes it never works? anyone else have the same issue?

JS

Spinny02, did u try to switch off the start button while u r in Neutral gear? On a running engine I think u can't clear it, engine must be switched off while key ignition still on. Try out n let me know whether it works? Mine was ok.

[Spinny02]

Originally Posted by Andym3100k

Spinny02, did u try to switch off the start button while u r in Neutral gear? On a running engine I think u can't clear it, engine must be switched off while key ignition still on. Try out n let me know whether it works? Mine was ok.

Thanks. I will give it a try. I was in gear and car was on. The car is at the shop I hope when it comes home it won't have any codes 😎

[Andym3100k]

Originally Posted by Spinny02

Thanks. I will give it a try. I was in gear and car was on. The car is at the shop I hope when it comes home it won't have any codes 😎

At the shop? What r u doing with it? Anything related to clear the code for good?