Go Back   Club Lexus Forums > Lexus Model Forums > SC Models > SC 400/300 > Performance & Maintenance
Sign in using an external account
Register Forgot Password?

Mvp headers

Thread Tools Search this Thread Display Modes
Old 04-09-14, 09:06 PM   #1
Driver School Candidate
Trader Score: (0)
Join Date: Jul 2013
Location: Ca
Posts: 44
Default Mvp headers

So I've doing a lot of research and debating either to even get headers anymore when I looked up obx people complained it cracked and the welding and fitment is off when looked up mvp headers I was aiming for that until I found out people are getting check engine lights but it's like 50% do and don't trying to figure out why would they get cel ? Should I keep stock really don't want to but if I have to how can I avoid getting a cel ? Please help need more hp lol
This ad is not displayed to registered members.
Register your free account today and become a member on Club Lexus!
x2jzsc300x is offline   Reply With Quote
Old 04-09-14, 09:34 PM   #2
Trader Score: (3)
Join Date: Jun 2010
Location: California
Posts: 2,152

In Cali you will have trouble with this. Especially if you have a Cali-spec car and not a Federal car. I considered it for an extra 8-10hp and some extra pull up high but the CEL issue might plague you even on an OBD1. There are O2 simulators available but I can't say for certain if this will help with the Cali-spec #3 O2 sensor (which more or less checks "efficiency" and does not report actual varying signals-- as far as I know).

There are a specific set of Bosch (I think) O2 screw-in sensors that are needed for this header.

In general, I don't see the benefit unless this is a 2JZ-GE swapped into a lightweight chassis like a 240SX set up for weekend track use. It's such a minor difference in power and a shift in the torque delivery from the low end to the higher rev range-- which makes more sense in a car that weighs under 3000lbs. On the street the SC300 needs all the low down torque it can get. I'd pair this with a 4.27 ratio if you aren't running one already.

MVP's headers, however, are supposed to be the good ones to buy if you so choose to.
1993 SC300 5-speed NA | Built R154 | Gixxer_Drew Susp. 600/325 | TT: brakes FR, rims, rear sway, seats | Koyo rad | 4.272 TT Torsen LSD | USDM 2JZGTE in progress
KahnBB6 is online now   Reply With Quote
Old 04-11-14, 08:05 PM   #3
Lead Lap
Trader Score: (9)
Join Date: Aug 2009
Location: NC
Posts: 579

I have a set of MVP headers on my car and have been running it for 3 years now without a cel, although I did have to buy some universal screw in type O2 sensors and splice them to the stock connectors. The only reason I got it in the first place was because my stock header had cracked. The MVP header did help a bit on the top end but like KhanBB6 said the car is too heavy to really feel any substantial gain. As for the cel problem this is actually the first time I've heard about it, maybe some people are using the wrong O2 sensors or did not splice the wires correctly?? I'm not really sure.
jjffyy is offline   Reply With Quote
Old 04-12-14, 06:07 AM   #4
Kira X
Trader Score: (22)
Kira X's Avatar
Join Date: Oct 2008
Location: 東京都
Posts: 7,857
Dark Cloud XS Death_Anghell

The MVP header is supposed to be pretty good. Does it make the exhaust louder or change the sound?
93 Lexus SC300
02 Lexus LS430
05 Lexus LS430 UL
95 Toyota Supra


Kira X is offline   Reply With Quote
Old 04-13-14, 10:17 AM   #5
Driver School Candidate
Trader Score: (0)
Join Date: Jul 2013
Location: Ca
Posts: 44

Originally Posted by Kira X View Post
The MVP header is supposed to be pretty good. Does it make the exhaust louder or change the sound?
Yea it makes really raspy but it sounds like a supra 😀
x2jzsc300x is offline   Reply With Quote
Old 05-02-14, 11:33 AM   #6
Pole Position
Trader Score: (1)
Join Date: Dec 2005
Location: IL
Posts: 214
Send a message via AIM to 1997Soarer Send a message via Yahoo to 1997Soarer

Yeah, it increases rasp a lot. How badly depends on the exhaust you're running now (stock vs straight pipe, etc). A good setup is the mvp header + Blitz front pipe + Blitz catback. Yeah it's loud enough to get tickets, but you'll sound a LOT like a modded TT supra.
I'll agree with everyone else. The header doesn't really add any power unless you like to drive above 4000rpm a lot. It hurts daily driving, especially if you're auto.
97 JZZ31
03 JCE10W
90 DA9R
1997Soarer is offline   Reply With Quote
Old 05-02-14, 11:33 AM

Similar Threads
Thread Thread Starter Forum Replies Last Post
PPE Header Issue Discussion F1nALMSfan IS F 71 07-25-14 08:42 PM
Invida Mid Pipe Kits for IS250/350 IN STOCK!!!! MVP Motorsports Chops@MVP Club Lexus Vendor Marketplace 65 05-16-14 09:32 AM
Air Lift Air Suspensions for 01-06 LS430!! MVP Motorsports Chops@MVP Club Lexus Vendor Marketplace 8 03-20-14 02:31 PM
IL 2008 Lexus ISF headlights mvp2 2Gen IS250 / IS350 / IS-F Classifieds (06-13) 1 01-23-14 12:20 PM
PPE header installed, cel and traction light on yjk1975 IS F 18 08-19-13 05:02 AM

cel, exhaust, headers, mvp, pipe, sc300, straight

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 08:00 PM.

Join ClubLexus

Copyright © 2000-2015 Internet Brands, Inc. All Rights Reserved
Privacy Policy | Disclaimer | Terms of Use | JOBS

Get all contact info