[boostin]

Hey guys I was just wondering how safe a catless downpipe and a cai would be without a tune? I searched and it seems as though a lot of people are running these mods without tuning. I'm just double-checking because on forums for the evo and sti etc. they say to get a tune when you have these mods to prevent overboosting or unsafe air/fuel ratios etc. Is this a worry for the N54, or generally not? Thanks for any info.

-Chris

[Blk07335i]

Should be fine. Ultimate Racing has a dyno plot on their website that was made with just their DPs and everything else stock. If you go catless though you will most likely get a CEL from cat inefficiency.

[PresaMat]

Im not sure why you would want to run DPs and a CAI without a tune... For the price just get a tune you will have a lot more power and less worries about if it will work or not.

[Sniz]

Originally Posted by PresaMat

Im not sure why you would want to run DPs and a CAI without a tune... For the price just get a tune you will have a lot more power and less worries about if it will work or not.

+111111


also get BMS 02 simulators w/ the catless pipes, they work just fine.

[boostin]

Originally Posted by PresaMat

Im not sure why you would want to run DPs and a CAI without a tune... For the price just get a tune you will have a lot more power and less worries about if it will work or not.

right now the wallet can only handle a UR downpipe and cai. down the road, i plan on the AA Processor, but for right now i was wondering if it was safe for just the downpipe and cai.

sniz - yeh i will be getting the BMS sims w/the downpipe.

-Chris

[Ultimate Racing]

Tune is not a necessity. Our shop car has all of our bolt-ons with no engine management whatsoever.

Darryl
www.ultimate-racing.com

[PresaMat]

Originally Posted by boostin

right now the wallet can only handle a UR downpipe and cai. down the road, i plan on the AA Processor, but for right now i was wondering if it was safe for just the downpipe and cai.

sniz - yeh i will be getting the BMS sims w/the downpipe.

-Chris

Hmm. Unfortunately that doesn't make any sense. If its wallet then DPs+CAI+Simms= more $$ then say the AA or Helix Tune. And a lot more then the JB.

[NYCGarbagePrince]

and a whole lot more headaches and a whole lot less HP... I don't understand going this route at all...

[e90AW335i]

Originally Posted by NYCGarbagePrince

and a whole lot more headaches and a whole lot less HP... I don't understand going this route at all...

+1.

Catless DPs = 695
CAI = 495
o2 simms= 119
Total= 1309

Attache = 795
AA Processor= 695
JB2X= 558

[PresaMat]

Originally Posted by e90AW335i

+1.

Catless DPs = 695
CAI = 495
Total= 1190

Attache = 795
AA Processor= 695
JB2X= 558

+O2 Simms


This is the route to take IF you are modding an NA car NOT a turbo car.

[e90AW335i]

Originally Posted by PresaMat

+O2 Simms


This is the route to take IF you are modding an NA car NOT a turbo car.

edited. Thanks Mat....

[TeeJay3580]

I just installed my AA exhaust and RR DPs today,WITHOUT a Procesor. And this is only because i ran out of time... BOV,FMIC,Processor tomorrow

Gruppe M hopefully Monday