I'm looking to go stage II sometime soon. I already have the UP on my car and the AP. I was wondering if I could just get the DP now and go Stage II with the stock muffler on it. Or do I need to get a new muffler to? I know about the restrictions in the stocker. But for now, could this be possible and upgrade the muffler down the road? Or do I need a whole new exhaust system all the way back there.
Well, its my understanding you can go stage II if all the cats are removed. Which in my understanding is TBE. Or is TBE with cats removed and a hi flow muffler. Thats what I don't understand and Cobb's website doesn't specify that for me. A simple yes do it or no don't, would suffice. :roll:
wasnt being a smart arse.. but if you ask a generic questio you will get a generic answer.. at least you didnt get a DO A SEARCH YA NNOB... I agree they dont detail it enough... but I am sure to do a 'PROPER' stage 2 you would need the TBE to be optimum... I just added an AP recently but already had a TBE, UP and stuff... makes a huge difference but if your car cant breath properly it wont get all the benefits it could... so my answer would be YES TBE = BEST WAY... but I am not an expert and its just my 0.02c
Heh thanks. Smartarse! So then I do need the full muffler setup. OK. I just never understood the whole catback, axel back, turboback differences. I just wanted to buy some other toys and wondering if I could go cheap for a month or 2. Before buying the exhaust. Since the DP's are the cheap part of the equation.
How much would you charge for a dual tip high flow muffler? Something I could basically throw on the stock pipe after the DP and just replace the muffler. I'd like to keep it almost stock looking.
The minimum requirement for Cobb's stg. 2 setup is an aftermarket downpipe. Either catless or a high-flow cat is just fine. However, for the best results, they recomend a full turboback exhaust.
Cool! I kinda want the quite sound AND the stock 'sleeper' look. Don't need to be 'advertising' for thieves! For your help, you get to see a little camel toe! <---
Dizmal, if you are looking to keep a stealthy look and sound, you should definitely check out the TurboXS stealthback setup. It's a 4" downpipe that tapers to 3" and then tapers again to 2.5" to mate up with your axelback of choice. I'm running mine with an STi muffler.
Thanks Tom. But, that raises another question. If I were to get the ERZ DP or anyother bell mouth DP. It will mate up with the rest of my stock piping correct?
Fitment to your stock parts all depend on the type of downpipe. There are "shorty" downpipes that will mate to the stock 3rd cat, and there are regular downpipes that meet the catback section at the "donut" joint. If you want to keep the stock catback section, you will want to avoid the downpipes that have a flat flange at the end -- these are designed to bolt up to 3" aftermarket catbacks. Here's a good chart on the different types of downpipes that are out there: http://forums.nasioc.com/forums/showthread.php?s=&threadid=532132
Nathan needs to answer the second question being presented here. Since he didn't, I'll answer it. An invidia downpipe will not mate up perfectly to a Bosal catback exhaust. This is from my experience. Either that or the manufacturer made a bad one and I bought it.
sorry I had a post ready to send you.. or did I pm it to you.. I had links to mufflers etc form magnaflow with options.. I was doint at work but my manager is away and I am running my own shop (dangit) and I got busy and starting helping out back.. so if you gto no pm.. I will post it here again with links... damn it I thought I did.. oh well... there are ways to get a nice system that flows way better but is reasonably quiet.. come by and hear mine... or were you at firestone on friday cause you may have heard it there.. it is pretty quiet now since I finished it then before.. but still loud enough to sound like a suby but is mildly louder than stock while on highway... and the power feels great with the full exhaust adn AP
Nope no pm. I'm looking at the ERZ DP and that NABISCO link didn't specify if it would fit a stock exhaust or not.
A lot of aftermarket downpipes (ie: Invidia, Helix, ERZ, HKS, etc.) have a flat flange designed to fit onto an aftermarket catback. These remove both cats that come after the turbo but they don't mate well with the OEM doughnut gasket. The Bosal downpipe will mate up to the OEM catback being that it only replaces the OEM second cat on your WRX (this is also the most restrictive cat in your system). The Cobb Stage 2 will work as long as you have this second cat removed. You won't make optimal HP from their [already] rich stage 2 map, but you'll make ~10 WHP for going to Stage 2 using the OEM catback.
