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The mkiv Supra Owners Club

MVP header for Na - any good?


Eddie-S

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The MVP manifold is a copy of the XERD manifold which was designed to fit a LHD US Supra, they foul on the steering column on a RHD Supra. They can be made to fit but would need modifying, see here: http://mkivsupra.net/vbb/showthread.php?294624-N-A-decat-rubbing-on-steering-column-safe-to-use&p=3711870&viewfull=1#post3711870

 

It has screw in O2 sensor bosses - stock O2 sensors have a 2 bolt flange - you'd need to modify the bosses or fit new screw on sensors.

 

It will be loud.

 

Expect hp increases of around 10-12 flywheel hp.

Edited by Nic (see edit history)
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Best set up Is this manifold 2.5inch in to a middle box in to a back box. This is what I have.

 

I've also had 2.5inch no middle box in to a back box and out..... Far too loud but I did a 14.3 with that set up at Santa pod which no one seems to have beat yet.

 

The manifold made a massive difference to how free the engine reved

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Guest gunness1991

i can confirm fitment of the obx ebay header + dual cat delete on a RHD without modifications. stock cat back, not loud at all with a nice throaty sound.

 

1994 n/a

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Interesting and a lot cheaper. What difference does it make to power/delivery? I've got an rsr cat back with no additional silencers so it's already a bit throaty.

 

I did a before and after dyno with the manifold I use to make and sell it made around 10hp increase but the car was a little down on power to start with so the test was a bit inconclusive. It does feel like the engine revs freer, but they do increase the noise level quite a bit.

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