[Lazyracer]

Hi,

Other than BBK shorties and UK sourced axle backs, my exhaust is stock. I want to remove the cats and replace with tube! Do I need to re tune the car?... Im guessing not.

[MaverickMLFD371]

you will need to turn off your o2 sensors via a tuner if you decide to get one, cause your car with throw a check engine light if you dont. or you can buy a pair of MIL Eliminators that plug into the sensors and trick the computer into thinking you still have cats. they run roughly $40

[jat]

can u turn it off in the tuner by urself... im thinking about cuttin off my cats...

how much u think it'll drop me..

[MaverickMLFD371]

Originally Posted by jat can u turn it off in the tuner by urself... im thinking about cuttin off my cats... how much u think it'll drop me..

if your tunes are LOCKED, then you can adjust them by yourself. if you have bamachips or brenspeed, I know their tunes are locked, you would have to get an updated tune from them to turn them off, but you can also tell them to leave the tunes unlocked so you can play with the tunes later on down the road based upon the mods you get (bigger tires/wheels, gears, etc.) but an updated tune is free via the tuner if you bought the tunes or tuner from him.

[Lazyracer]

Thanks guys. I think I am going to go for the MIL eliminators- Pacifica Performance seem to sell a nicely prepare3d set.

Ive no idea how much cutting cats would cost in the US as I am going to do it myself. The cost of shipping and importing an X pipe is just not worth the power upside (£/bhp).

My tune comes from BAMA si Im guessing its locked. Im quite happy with the way the car is running so Im happy not to change it -or attempt to, hence the MIL eliminators

By the way, I have seen Lightnings go through emmissions tests over here in the UK de-catted. Apparently, the EU emmissions tests do not allow for US imports

[moke176]

hey lazy, i was reading your sig, u have a home made ram air?? how did u make it? any chance of gettin some pics of it?

[catchtheroadrunner]

Originally Posted by moke176 hey lazy, i was reading your sig, u have a home made ram air?? how did u make it? any chance of gettin some pics of it?

+1+1+1+1

[06RedfireGT]

how come every time roadrunner quotes somebody it never looks right

[Luis_GT]

I think its a forum option or something

[06RedfireGT]

[catchtheroadrunner]

Originally Posted by Luis_GT I think its a forum option or something

Thank you Luis! Sir! I press the quote button and the next thing I know I have a post full of programmers code. I just figured it looked normal to everyone else. So what is the setting I can change?

[ChrisJ]

[ChrisJ]

Check in your profile...

[catchtheroadrunner]

Originally Posted by ChrisJ Check in your profile...

Are you being quoted properly?

[ChrisJ]

Originally Posted by catchtheroadrunner Originally Posted by ChrisJ Check in your profile... Are you being quoted properly?

Yep its fixed...

All you need to turn the rear 02 sensors off is either get a tune that has them turned off...Or buy a SCT SCAL2 and turn them off with that...

[Lazyracer]

Originally Posted by ChrisJ Originally Posted by catchtheroadrunner Originally Posted by ChrisJ Check in your profile... Are you being quoted properly? Yep its fixed... All you need to turn the rear 02 sensors off is either get a tune that has them turned off...Or buy a SCT SCAL2 and turn them off with that...

Thanks, Ive got some MIL eliminators on the way.

[Lazyracer]

Originally Posted by moke176 hey lazy, i was reading your sig, u have a home made ram air?? how did u make it? any chance of gettin some pics of it?

Ill get some photos posted later.

As there is so much plumbing around the airbox, I couldnt see how to obviously funnel cool air into the airbox. I couldnt see a neat scoop option given the location and didnt want to fit a shaker style system with extra piping running into the throttle body etc.

So, I bought 6 x 1/2ish" dia plastic tubes that would ordinarliy be used for plumbing washing machines ( ). I then cut 6 appropriate sized holes in the lower drivers side valance (where there is the style'ised honeycomb). I then used plastic metal bonding to afix one end of each hose and then ran the other end around the factory plumbing into the airbox. I then cut the tubes 'to length' inside the airbox and cable ties hold them in place.

Finally i fitted a fine mesh over the holes and rattle canned it to match the valance. Its not in the slightest bit noticeable.

Ill post some photos later.

Guys I have no idea if it makes any difference to speed but without doubt, cool air gets pushed into the box. I guess its another box checked on the 'gain more speed' sheet.

My ET dropped by 3-4/10ths next time out though that did include using M&H DR's in place of SP9000 street tires !!!

[Lazyracer]

I am not sure how to post images into a thread so I have attached links!

This one shows the front valance honeycomb and the place to cut the 6 holes, albeit on the drivers side! You could do both sides linking both sides together via Y fittings prior to running up into the airbox but I did not think of it in time! Equally, the hoses would run 'in open air' between the two honeycombs and I am not sure they would stand up to the elements.
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=4

This one shows the hoses in place and the mesh placed over the top along with various dead things picked up along the way! (I used a fine body repair mesh)
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=5

This one shows the hoses routed up into the airbox. I didnt leave any slack - obviously, there is no room and I doubt it would help.
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=2

In an attempt to get air swirling around the filter, I cut the hoses and attached them at various locations, secured with cable ties.
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=6

Here is the finished underhood
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=1

and here is the finished pedestrian view
http://uk.msnusers.com/General1/shoe...hoto&PhotoID=3

Hope this helps...

[MaverickMLFD371]

not workin.....

[Lazyracer]

Originally Posted by MaverickMLFD371 not workin.....

Try again, just checked and all seemed OK this end.