HKS Hyper Muffler. Apex'i down pipes. De-Cat. M's/K&N induction. Unmodified boost but up due to better breathing. Std Turbo's.

Looking in the Japanese Performance article, I was very pleased with the power gain.

People running 1 bar and new ECU only saw 6hbp gain on my figure.

I bought all my mods off of Kiki at Option on his recommendations saying that the exhaust setup was the best combination in his experience and also broke down the gains to: Exhaust +47bhp, Down pipes +17bhp, Cat +9bhp all added to a std 300bhp Skyline would get 370 odd bhp.

Not a bad guess, I thought a bit exaggerated at the time, but turned out to be spot on.

I'd recommend the pipes to any one.

If you look at them you can see a better flow path than other combinations have, especially the down pipes being a lot smother in path than the HKS equivalent.

 

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