Headers/race cats vs. Stock setup, are headers worth the $?

DLSJ5 · Tue, Sep-20-2005, 05:35:50 PM

Sorry to beat a :2dedhorse, lol, I've searched, talked to a few enthusiasts and found plenty of good info, but want a bit more if I decide to shell out 3500K for headers and cats. I wasted plenty of $ on my last car, Audi A4, don't wanna do that this time around.

I was looking forward to doing some mods to the car but after doing some research and running my buds modded M, I'm a bit skeptical, not sure if the gains are worth the $. I own a 05 ZCP completely stock and BTW the car has exceeded my expectations! My buddy's M is an 04, his mods are, Carbonio intake, Eiseman x pipe and s pipes no res, pullies and shark. He was on 100 octane and I was on 91, both cars are SMG. Basically it was dead tie, we did at least 10 runs. Felt bad for him after spending all that money and time on his car, he took well though.

Has anyone done before and after runs of their car stock, then modded, against another M? Any bolt on mods, intake, headers, chip, etc. What were the results?

Lee Mathews is running in the 12's with the stock headers I know he has more driving skills than any of us and he's 6mt, but there was a stock ZCP SMG car that ran a 13.052, that shows the stock header/cat setup is damn good. A few others showed better trap speeds and times with the headers, so maybe they're worth it. I'm wondering what Lee would run with headers and no cats. Still can't make up my mind any comments or advice would be appreciated.

Beach_Bum · Tue, Sep-20-2005, 05:40:58 PM

From what I've read and heard the Header/Cat setup is going to be the most noticable of all the bolt-on mods short of a Supercharger (and maybe tied with a 4.10 diff)

Poindexter · Tue, Sep-20-2005, 05:48:00 PM

Subscribing for curiousity sake......but I would think (not fact) gears will make the most difference on a NA car.

**Dan Law** · Tue, Sep-20-2005, 05:51:56 PM

Folks:

Short of forced induction which I don't care for:

1. Lightweight Flywheel with associated clutch - if street keep >13 pounds

2. Diff lowering 4,1 at least

3. Headers/cams best to do both together!

Oh yeah, don't forget to dump the CDV!

mm28 · Tue, Sep-20-2005, 06:04:05 PM

Quote:

Originally Posted by Dan Law

Folks:

Short of forced induction which I don't care for:

1. Lightweight Flywheel with associated clutch - if street keep >13 pounds

2. Diff lowering 4,1 at least

3. Headers/cams best to do both together!

Oh yeah, don't forget to dump the CDV!

Can i replace my flywheel and clutch if i have SMG??

نسيم هودج · Tue, Sep-20-2005, 06:07:12 PM

Quote:

Originally Posted by mm28

Can i replace my flywheel and clutch if i have SMG??

Yes...it's the same tranny

نسيم هودج · Tue, Sep-20-2005, 06:07:53 PM

Quote:

Originally Posted by Dan Law

Folks:

Short of forced induction which I don't care for:

1. Lightweight Flywheel with associated clutch - if street keep >13 pounds

2. Diff lowering 4,1 at least

3. Headers/cams best to do both together!

Oh yeah, don't forget to dump the CDV!

Dan,

Can I phone you now?

mm28 · Tue, Sep-20-2005, 06:41:42 PM

Quote:

Originally Posted by NACHTBLAU M

Yes...it's the same tranny

where in the LA area can i get them install please?? because i order them form a pretty good shop and they told me they can do it cause it was SMG??

**Dan Law** · Tue, Sep-20-2005, 09:07:36 PM

Naseem:

GC has nothing for your dad BUT I am working something with TCK will let you know soon. Delivering Eisenmann Ti (yeah, I know) to UPS now.

MM28:

EMail my business account, I have a good guy in SoCA who will gladly do it.

dermotorsports@gmail.com

mm28 · Tue, Sep-20-2005, 09:10:40 PM

Quote:

Originally Posted by Dan Law

Naseem:

GC has nothing for your dad BUT I am working something with TCK will let you know soon. Delivering Eisenmann Ti (yeah, I know) to UPS now.

MM28:

EMail my business account, I have a good guy in SoCA who will gladly do it.

dermotorsports@gmail.com

thanks for the offering, but after i told the shop about this and he said he is going to put it on for me

Tue, Sep-20-2005, 05:35:50 PM	#1
DLSJ5 Registered User Join Date: Aug 2005 Posts: 3,103 Reputation: 0 Location: CA	Headers/race cats vs. Stock setup, are headers worth the $? Sorry to beat a :2dedhorse, lol, I've searched, talked to a few enthusiasts and found plenty of good info, but want a bit more if I decide to shell out 3500K for headers and cats. I wasted plenty of $ on my last car, Audi A4, don't wanna do that this time around. I was looking forward to doing some mods to the car but after doing some research and running my buds modded M, I'm a bit skeptical, not sure if the gains are worth the $. I own a 05 ZCP completely stock and BTW the car has exceeded my expectations! My buddy's M is an 04, his mods are, Carbonio intake, Eiseman x pipe and s pipes no res, pullies and shark. He was on 100 octane and I was on 91, both cars are SMG. Basically it was dead tie, we did at least 10 runs. Felt bad for him after spending all that money and time on his car, he took well though. Has anyone done before and after runs of their car stock, then modded, against another M? Any bolt on mods, intake, headers, chip, etc. What were the results? Lee Mathews is running in the 12's with the stock headers I know he has more driving skills than any of us and he's 6mt, but there was a stock ZCP SMG car that ran a 13.052, that shows the stock header/cat setup is damn good. A few others showed better trap speeds and times with the headers, so maybe they're worth it. I'm wondering what Lee would run with headers and no cats. Still can't make up my mind any comments or advice would be appreciated.

Tue, Sep-20-2005, 05:40:58 PM	#2
Beach_Bum Registered User Join Date: Sep 2004 Posts: 4,550 Reputation: 0 Location: Jax Beach	From what I've read and heard the Header/Cat setup is going to be the most noticable of all the bolt-on mods short of a Supercharger (and maybe tied with a 4.10 diff) __________________

Tue, Sep-20-2005, 05:48:00 PM	#3
Poindexter Revenge of the Nerds Join Date: Aug 2005 Age: 34 Posts: 459 Reputation: 0 Location: Virginia Beach	Subscribing for curiousity sake......but I would think (not fact) gears will make the most difference on a NA car. __________________ Moved from Bavaria to Stuttgart.

Tue, Sep-20-2005, 05:51:56 PM	#4
Dan Law M3Forum Sponsor Join Date: Feb 2004 Posts: 2,321 Reputation: 0 Location: Peachtree City	Folks: Short of forced induction which I don't care for: 1. Lightweight Flywheel with associated clutch - if street keep >13 pounds 2. Diff lowering 4,1 at least 3. Headers/cams best to do both together! Oh yeah, don't forget to dump the CDV! __________________ Dan Law DERMotorSports@gmail.com 770.631.0125 www.DERMotorSport.com under construction Dan Law DERMotorSports 770.631.0125 DERMotorSports proudly carries: TC Kline, AST, Moton, PowerFlex, Vorshlag, Rogue Engineering, SPAL, SPA, Cobra, Schroth, Brembo, AP Racing, StopTech, Performance Friction, TireRack, ATL, TC Design, Eisenmann, Remus, Larini, SuperSprint, AC Hydraulics, Stand21, Racing Radios, CDOC, RRT, UUC, Zionsville Auto, RaceTech Seats/Harnesses, Sparco, MOMO, Audison, Hertz New line announcements forthcoming!

Tue, Sep-20-2005, 09:07:36 PM	#9
Dan Law M3Forum Sponsor Join Date: Feb 2004 Posts: 2,321 Reputation: 0 Location: Peachtree City	Naseem: GC has nothing for your dad BUT I am working something with TCK will let you know soon. Delivering Eisenmann Ti (yeah, I know) to UPS now. MM28: EMail my business account, I have a good guy in SoCA who will gladly do it. dermotorsports@gmail.com __________________ Dan Law DERMotorSports@gmail.com 770.631.0125 www.DERMotorSport.com under construction Dan Law DERMotorSports 770.631.0125 DERMotorSports proudly carries: TC Kline, AST, Moton, PowerFlex, Vorshlag, Rogue Engineering, SPAL, SPA, Cobra, Schroth, Brembo, AP Racing, StopTech, Performance Friction, TireRack, ATL, TC Design, Eisenmann, Remus, Larini, SuperSprint, AC Hydraulics, Stand21, Racing Radios, CDOC, RRT, UUC, Zionsville Auto, RaceTech Seats/Harnesses, Sparco, MOMO, Audison, Hertz New line announcements forthcoming!

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