Easy question, easy answer?

I've got an 05 lgt mt, looking to eventually get a catless up, catted down, and an AP. Problem is I have to get each piece one at a time due to financial restrictions. I was thinking AP first...since I can use it without the others. Thoughts?

catless up first. You can run that without a tune.

 

Then get a dp, save on the side until you get an AP, then Install both at the same time

up first

I agree about the up pipe first for safety reasons, but why would you go with a dp and then ap. I would say just save your money and get em all at once, you have to dissconnect the DP to get the UP off anyway, and you need a tune to make the DP work right. If you need to get one first, get an AP, that will at least give you a bit of bang for your buck while you save to get the exhaust hardware to install all at one time.

BTW, PM me when you are looking for an AP, I'll have a V1 ap for an 05 lgt for sale soon if you are interested.

For the price of an AP you could pretty much get an up dp and opensource toon.

Scooby I did think of this but I liked the ability to put it back to stock and switch maps whenever I needed to. Plus the AP is something that needs no installing, from what I've read an UP is a major PITA to do yourself.

i say go up first cuz u don't need to modify tuning

 

then i'd get a vag-com cable (for open source tuning) instead of AP. save you some money

A Vag-com cable cost 15 bucks on ebay/amazon. if u want to have more features and log without a laptop then a tactrix openPort 2.0 cable is 169.99

That's still WAY cheaper than an AP v1... once your maps are stable there is really no benefit to switching your maps out back to stock. and if u do need it (say for going to the dealer or whatever, then use your laptop to flash back the stock map again)

 

the OTS maps are much better for OpenSource tuning, search for MickeyD's Stage 1

MickeyD's stage 1 maps are more aggressive than AP's stage 1 map.

 

Now after you get that, then get dp.

A CNT catted downpipe is the best bang for your buck.

After u get the dp then talk to Infamous to get a tune for $150.

Open source > AP

I did the catless up first. mostly because i was having issues with the cat in that pipe, it would have gotten switched anyway eventually. did not need a tune but you will not to do the "resistor mod" if you have a EGT sensor

The resistor mod if cost about $1.25 from radio shack for a package of 5 each 2.2K ohm resistors.

 

You should buy the up/dp and install both at the same time. Along with removing the banjo filter.

 

If you buy a AP V1 make sure you don't pay to much for it. You can then trade it in for V2, Cobb has the form on thier web site.

 

V2 is much better.

 

Or if your good with a lap top buy the cables on go that way.

I personally had fun learning the car prior to installing the UP/DP and AP ver.2 al at the same time. WHAT a difference!!!!!

Thanks for all the info guys. Would you say an UP and DP is doable in a day with standard garage tools?

Stockpile and do it all at once.

Thanks for all the info guys. Would you say an UP and DP is doable in a day with standard garage tools?

 

Yes very doable. FYI - Just make sure to have a hand full of exhaust bolts ready, they are known to break when removing. I had 3 snap on me when I did it. Spray some penatrating oil on the bolts first to prevent some of the bolts from breaking.

F1 thanks, I would not have thought of that.

Make sure that you have all new gaskets as well, and you will most likely need a 2.5-3" exhaust adapter to mate the dp up to your stock cat-back. I have one of those to sell ya if you don't get one with the dp.

Also use anti-sieze compound on all the nut's and bolts when you back together.

 

Also my Invidia DP did not need the adaptor, it bolted directly to my oem mid pipe, may be a little more money, but one less piece to mess with and have leak...

I needed an adapter for my Invida dp.

 

I think Cobb is the only one that doesn't need one because it tapers to 2.5.

I needed an adapter for my Invidia DP as well, I just upgraded my mid and y pipes so I don't need it anymore.

I needed an adapter for my Invida dp.

 

I think Cobb is the only one that doesn't need one because it tapers to 2.5.

 

 

Mine is catless, I wonder if that's the difference. I bought it. Aug 2010.

 

The flange has slotted bolt holes.

Mine was catless too, but the adapter makes for a smooth transition between the DP and the mid pipe with a tight seal between the two. There are slotted bolt holes on the flange, but that doesnt make 3" taper down to 2.5"

Ok so spare bolts, gaskets, 3'' to 2.5'' adapter...any other miscellaneous parts I may overlook?