Hey guys I have a 2003 discovery and wanted to put a new intake and exhaust on it. I have always had luck with doing that to other vehicles I've had and increasing gas mileage and such. Anyone know of whats available? Thanks and happy kwanzaa

 

need to change the cam for the exhaust to gain anything. As for the cold air intake, Bosch MAF's are sensitive and will go out with anything other than paper. K&N's kill MAF's fast.

With an 03, you have a 4.6 which is already better than everyone before you......A few people on here have chips. Might try it, but you won't get much. Pretty much have to do it for the green factor...

 

First, you need to change your thinking about improvements on engines. Rover engines are 45 year old Buick engines that the British have played with for years, the D2 has the only intake manifold on the market. If you want to do anything you need to look at the cam as already mentioned, opening up the heads and a godd exhaust system.
How much extra power are you thinking you'll need?

 

I want as much "extra power" as I can get....maybe I should not have test drove an 08 range rover man oh man if I only had 90,000 dollars lying around.

 

One of my buds dropped about $5500 on his P38 Rangie to up the power. He probably could have gotton more performance out if it by ripping out the interior to save the weight.

Kinda hard to tune a 45 year old engine. What's that saying about polishing a turd?

 

Hello; I read your

 

Ok that was strange; I read your forum quite often but only chim in once in a while. In reguards to the K&N filter i have been running one in my 2000 for almost 40000 miles now without any trouble. You have to clean and reoil it properly. I have heard lots said about fibers comming lose. I have run these filters in everything from BMW, to Ford F450 without any trouble. I belive this to be a myth and have yet to see any proof tosupport the claim that these filters do any damage with proper maintance. As with any product on the market they have to be used the way they were ment to work, otherwise you will have trouble with them.

 

I put a K&N on mine a couple of months before I left FL. for AZ. Seemed like a good idea until about a month after I arrived and the MAF went down the crapper. It is not a myth, it is a fact due to everyone trying it at some point in time. It doesn't break overnight, but takes time, at least it did on mine. Soon you will start losing acceleration, then it will backfire out of the intake once in a while, then it will struggle to get up to speed, after a while, it won't even go above 45ish. Trust the experienced guys here (not myself), it will happen. Good Luck

 

Sorry about your luck. It just seems funny that only a hand full of people are haveing a problum with this filter. I belive that it is bad maintance to blame or lack there of. The Army and a host of other countrys are useing the same filter in many aplications. To include Aircraft intakes in the Gulf. I am quite knowlageable in this. I am a Civilian DOD Tech that works with this system. So follow the instructions on the box of be sorry.

 

Not all MAF sensors are created equal. Those on the Bosch equipped Rovers have had a poor service history with oiled air filter media. The oil contaminates the hot wire element and eventually causes the MAF sensor to give erroneous readings to the computer.

Several people on this and other Rover forums have reported the issue and solved the problem by going back to paper air filters.

Dave