HF Cat vs Test pipes on my new Z

FPenvy

washer mod is cost effective but doesn't do anything aside from slightly alter the exhaust sound lol

and the underdrive pulley is an absolute pain to install to gain minimal power.

long tube intakes, tp, cat back. should get you to 315~whp with a tune. obviously number depending on location, tuner, etc...

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

2011 Nismo#91

I agree, I was looking at it from a cost perspective. Long tubes and full cat backs are much more then an second hand nismo exhaust and test pipes.

FPenvy

but in the same analysis of cost and parts, in the end you're wasting your money. that is unless you have no interest in going further with your power goals and whatnot then that setup will be ok then. if you just want a little sound and a little power then just TPs and a nismo exhaust will be ok.

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

2011 Nismo#91

Yeah, well that's what he's looking for. There's a good chance he'll be getting rid of the car a year from now.

scope22

Just FYI I'm married with one kid, so you can make it work. remember tthat your eexhaust will be really stinky with test pipes, coming to a stop with Windows down is not fun

njobe89

idk why people are saying this, but i can hardly smell mine. i can usually only smell it when i first start my car, but if i'm driving at come to a stop at a light, there is no smell.

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2 plus 2 times 2 = ? ... hint, it's not 8

Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

FPenvy

I guess i'm alone on liking that smell lol

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

njobe89

nah i like it too lol, but i'm saying i don't smell like other people say. they make it seem like you constantly smell it.

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2 plus 2 times 2 = ? ... hint, it's not 8

Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

scope22

my bro has an audi and its smelly, not every time we come to a stop but sometimes

FPenvy

probably because it's german.

does it kraut at the stops?

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

njobe89

in my opinion the biggest waste of money and time are headers... cost a pretty penny and takes forever to install for a few whp. not worth it in my opinion, but that's just me.

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2 plus 2 times 2 = ? ... hint, it's not 8

Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

mishuko

no one wants your 'project' car

Jordo!

For max power and minimal rasp you will want resonated test pipes, ideally with long, L or J shaped bung extenders for the secondary O2's.

You may still require a tune to turn off the associated CEL if the ECU sees the primary and secondary O2's matching voltage change rates too closely.

Really, any set will do. If you don't care about rasp or rattle (it is bad, tho'), a set of unresonated TP's from ebay will serve just fine.

That said, if you get TP's, I would consider investing in a tune anyway to improve throttle response, clean up AFR's, and bump up ignition advance.

Or, if you have the coin and either the tools or a shop willing to do it, skip the TP's and go for Long tube headers (and a tune). I recommend PPE.

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Enjoy it. Destroy it.

SurfDog

Especially about the "rasp" go resonated!
HFCs are not to bad, but the TP smell doesn't bother me at all.

I finally took off my BERK HFCs because the Connection flanges warped from the heat, (which is a fairly common problem I hear). It caused the CELs to come on a lot and smelled way worse than TPs because the exhaust was leaking right under my seat ( I do track some, so your results may vary)

TPs cause less "back pressure" in the exhaust. It lowers your torque a bit, and enhances HP a lot, but it also takes pressure off the exhaust corridor releasing heat better and solving annoying leaks. (at least it did for me)

IMHO, its a very good mod if you push your car like I do. HFCs eventually were very problematic for me and talk about smell!

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09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

LAVA

I have some TP's for sale, check my sig

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