what do i need before a k100

[tomosjoseph1]

Hi im looking to get a k100 fitted soon my car is standard except group m induction kit

what do people recommend , ? and what will I need exactly links or any info appreciated

 

[kwiatu]

Do exhaust manifold and catback - your car will be able to breath

suggest japspeed cause cheap and make works very well - its dc sports replica - http://www.ebay.co.uk/itm/152084673478

catback is your own prefference, i wouldnt go with more than 2.36 inch exhaust for stock k20a - cause exhaust will be extra noisy... 2.36 with aftermarket mufflers should be much quiter

 

[Fez]

You can map the car when its totally standard, but the usual mods are mani/decat, 3" exhaust, rbc intake. Should see an extra 5-15hp peak

 

[kwiatu]

You can map the car when its totally standard, but the usual mods are mani/decat, 3" exhaust, rbc intake. Should see an extra 5-15hp peak

Thats kinda small hp gain, 3" exhaust will take about -10-15hp from mid range to give you 1-2 hp on top range - i dont think its worth that.
K20A - with exhaust manifold, 2.36 exhaust, rbc, and well made intake (not the short arm which is on top of gearbox) should make about 240-245HP with good tune.

we made 227hp on completly stock K20A2 + hondata airbox mod + 2.36 catback with 2 mufflers (not sure how to tell it about end can - but its not free flow) and ofcourse there was oem k20a2 exhaust manifold + cat converter, will upload graph in a while.



Edit:
Graph
Also you can spot that there is also timeattack k24 builded, and tuned, block is stock + forged pistons + forged rods + RBC + Brian crower stage3 + well made intake + modified dc sports exhaust manifold + custom exhaust - such a difference

 

[Linus27]

I had AEM V2 intake, Spoon B-pipe and Spoon N1 and made 237. Then changed the Spoon N1 back to OEM and fitted a Spoon 2-1 to remove the cat and only made 227. In a couple of months I will be changing the OEM 4-2 and Spoon 2-1 for a DC Sports 4-2-1 and fitting an RBC so I'll let you know what I make after that once mapped.

 

[Kenz]

As others have said I'd change the exhaust system too. Mine has a tegiwa manifold, skunk2 cat back and tegiwa airbox mapped at tdi north and it made 244bhp. A map on the car does make a night and day difference, I think so anyway. Maybe not in straight line performance. But pulling you out of corners etc


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[ep3kamal]

I've got RBC, Solid fab 4-2 manifold and b pipe and Fujitsubo RM01A back box, Gruppe M Induction kit and made 247 at Eurospec

 

[tomosjoseph1]

thanks

 

[mil1lion]

I got just the Tegiwa intake with Kakimoto cat back before the K100 (mapped at Eurospec) and made 214 so pretty much got it back to stock numbers on a 2001 model

Will be getting the Tegiwa header in a few months and a remap so hopefully get it up without the restrictive cat converter. As long as you still have a cat fitted you're never going to get great gains. However the mid range improvement for me made all the difference especially on track.

 

[nails]

Whats the rules with cats on these cars guys? Assume if we decat it means a faff come mot time? Not to mention invalidating your insurance. Also, a local lad with a skyline recently got pulled over by the police, they saw he had no cat so impounded the car.

 

[Chrismartin]

Whats the rules with cats on these cars guys? Assume if we decat it means a faff come mot time? Not to mention invalidating your insurance. Also, a local lad with a skyline recently got pulled over by the police, they saw he had no cat so impounded the car.

Yep you are right. There are a few choices Cat wise. A few people go for a manifold with a sports cat. A typically more free flowing cat but shouldn't cause any problems come MOT time.

Another option is a bolt in cat where you have a decat manifold and when it's time for your MOT you unbolt the decat and bolt in a cat and vice versa afterwards.

 

[nails]

Yep you are right. There are a few choices Cat wise. A few people go for a manifold with a sports cat. A typically more free flowing cat but shouldn't cause any problems come MOT time.

Another option is a bolt in cat where you have a decat manifold and when it's time for your MOT you unbolt the decat and bolt in a cat and vice versa afterwards.

Thanks for that, if and when, I think it will be a sports cat for me then

 

[DC5Curn]

Ive just ordered a Sard 2-1 cat. Ill let you know what its like when I get it. Quite pricy but has good reviews. Im like you and wanted to keep the car legal.