What size is our downpipe? I want to order a highflow cat but i'm unsure the diameter of what we have.. is it 2.5?


Lee

I can get an Autosound for around 95.00-100.00. I figure hector is going to make one. Right?? If so once it’* done the price should be reasonable. There are alot of great exhaust systems available but I was waiting for hector because he was going to set up a good unit at a good price. If for some reason hector is not interested ill get you a dirt-cheap price on the best product I can get. I figure that will be Hector. No pressure Now don’t get me wrong I’m not attached at the ... well I guess what I’m saying is I am ultimately a "store" so if the need is high I will do whatever has to be done to please the customer and provide the best product at the best price. I think Hector is going to come through though and the wait is always worth it when the product is good. To tell you the truth I cant wait for the ADTR product to arrive so I can start selling it.

Ty

If you want to provide a solution now Ty go for it. Right now we are more focusing on a cat-back systems first then do the downpipe/hi-flow cats/test pipes. We are going to have more time and cores and such to do more research. That is what has been slowing us down, as well as lack of test cars so I can to go to neighbors and friends and measure then later test fit it, then adjust, and then repeat over and over. It gets annoying then they drive it around, blah blah. I haven't had much chance to look at my neighbors 2000+ SSE to check out how the airbox is mounted. I have glanced it over but haven't taken measurenments or designed anything producable yet.

Don't quote me on this, but I think the SC versions are 2.5", and the NA'* are 2.25".

Thanx for the help guys

what would be more benefitial, gutting the factory cat, replacing it with a straight pipe, or getting a high flow cat?

Getting a high flow cat is more "benefitial" in my mind because having a shop reject to do maintenance on your car is not my idea of cool.

Go hi-flow. The car won't even know it'* there. Whatever you do, don't post pics of your car publicly if you straight-pipe it, like that guy down in 'Classics' did! It is a federal crime to do this. Bad news.

Hey will i was just reading that post!! First time i ventured into that forum. I don't think its worth it to eliminate the cat because come inspection time, the car has to pass emissions(at least in MA) and it is going to be a pain in the *** to unweld that pipe and put a cat in.

Not only that, but on the newer 'Villes, there'* a second O2 after the Cat. Try fooling that. You can buy the simulators, but it'* not worth it. THEN when we're dealing with an SSE or SE, straight-piping the CAT may rob too much backpressure, resulting in a loss low-end torque. Keep the Cat. Always. Unless you're building a strip car.