|Two Back Boxes for Improved Flow and Performance.|
Car: 1999 Rover 800 825 V6 Coupe
Colour: Zircon Silver
A stainless steel back box or stainless steel exhaust system may seem like a very expensive item to purchase for your car! Although you may be pleasantly surprised at how affordable a stainless steel exhaust can be!
Most cars are fitted with mild steel exhausts at the time of manufacturer, and as we all know, these will need sections replacing several times throughout a cars life.
Looking at prices from some aftermarket performance exhaust manufacturers may be a little off putting. Often a branded back box will be at least double the price of a normal one.
There is a cheaper way though, go to a custom exhaust builder. These will usually be a lot cheaper than buying any/all the sections you need, and the prices they quote usually include all the necessary welding/fitting to get the exhaust on your car.
The costs will still be higher than having a standard mild steel replacement exhaust fitted, but unlike the standard exhaust it will not need replacing again in another 1/2/3 years+. A stainless steel exhaust should last longer than your car, and most fitters will offer you a lifetime guarantee for as long as you own the vehicle! (these guarantees usually involve a free annual check to remain valid).
Changing an exhaust for a stainless steel one may seem costly, but if you are at the stage where the normal exhaust has served its useful life and needs replacing anyway, you may find it is worth paying the difference especially if you are intending to keep the car for some time yet. They can usually be fitter for less than double the cost of the ordinary one, yet not only will it out last several normal exhausts, it will be made to look and sound exactly as you want it to.
You can normally choose to have a back box, cat back, or full exhaust system made. Although a full exhaust system is costly as it will involve fabricating a new manifold system.
The best option to go for normally is a cat-back system, as this will maintain the original catalytic converter and manifold, which will not normally need replacing anyway. A cat back system will replace the tubing and any exhaust boxes from (but not including) the catalytic converter to the rear of the car.
A custom built cat-back exhaust will normally follow the same route as the standard exhaust did, although you can modify this in any way you choose, the Rover 800 825 V6 Coupe exhaust in the photos was replaced with a dual exit system, so that two back boxes exit the rear bumper.
Normally the back boxes will be made from a shiny stainless steel, but depending on where you go, the rest of the pipework and boxes may or may not be! Expect to pay a little more if you opt for shiny tubing and boxes all the way from front to back. These will stay shiny throughout the life of the exhaust (if and when you clean them!), the non shiny type will begin to look like it is oxidising like a normal exhaust does, but do not worry as it will not rust.
Some people may wonder if there are two different types, which is actually the best? Well the properties of the non shiny stainless steel, will cope better with the repeated extreme changes in temperature from hot to cold, but the shiny one will always look nicer. As long as you go to somewhere that will guarantee the system, then either is fine, it just depends on how much you are willing to pay.
The other difference is the way the tubes are fitted. Some custom exhaust centers will have a large machine for bending exhaust pipes, others will just chop a pipe into short lengths and then weld these smaller tubes together with the required turns needed for it to be able to fit the car. Both methods are okay, again it is down to choice and price.
Before getting an exhaust fitted pop along to the exhaust centres workshop and ask to view any cars they are currently working on. You can also use websites to view, previous work done on customers cars, but ask around (or try the forums) and see who other people actually recommend! You may find that some individuals and some independent fitting centres are much cheaper and come much more highly recommended, than some of the larger franchised operations.
If you do go and visit an exhaust centre pop along late in the day, a time when customers might be collecting their cars, so you can here it start up, although many exhaust centers will have their own cars that they will demonstrate to you if asked. Do not be put off by any overly loud new systems because most exhausts will become much quieter after the first couple of thousand miles use. So a used demonstrator will usually be the best example.
When you have a cat-back exhaust fitted, they will normally only take 2-3hours for the job to be completed. The more modifications you require though, the longer it will take, but with most custom exhaust fitters, you will be driving away the car the same day.
You can opt to have a loud exhaust, or quiet running exhaust, or one that will cruise quietly, but roar when you floor it! Which ever you opt for you should find your car drives and performs better due to the free flowing design of the boxes used. Some people will opt to remove a catalytic converter and replace it with a straight through pipe or section, but in most cases this is not street legal, and for most modern vehicles a cat must remain in place for road use and not just refitted for the annual MOT emissions test!
You may want to combine your new exhaust with an air induction kit under the bonnet, that way the car will be able to breathe easier, will drive and idle smoother, and you might just see some significant performance gains, & it should sound good too! Anyway Enjoy!