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Thread: wot bhp gain would i get form these mods

  
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    Birchy*GSI*'s Avatar
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    wot bhp gain would i get form these mods

    got a pre-cat veccy c inley pipe and courtney panel filter all on it way to me and all be fittin on the weekend and just wanna know wot bhp would i gain frm there little mods?

    also be getting soon would be a full custom exhaust without the cat also a courtney stage 1 after the exhaust

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    lee gsi's Avatar
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    Probably gain about 10 bhp
    The truth is always the truth even if you haven't realised it yet...

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    Clemo SXi's Avatar
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    Air box mods = No power really, might just be more efficiant for the engine, if you do notcie it pulling better it wont be more than 1 or 2 BHP extra.
    Exhaust on its on about 10 BHP more
    And stage 1 takes you to 240BHP iirc (inclusive of your other mods)
    I'm after another Coupe Turbo

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    mattycruise's Avatar
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    you might not get nothing. you might get up to 10bhp.
    Is Back To The Dark Side!!!!

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    lee gsi's Avatar
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    The precat is where you will gain most if not all of it.

    The main cat will still be on so no legal issues
    The truth is always the truth even if you haven't realised it yet...

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    Clemo SXi's Avatar
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    Quote Originally Posted by lee gsi View Post
    The precat is where you will gain most if not all of it.

    The main cat will still be on so no legal issues
    My mistake, a quick re read (thought it said DE-Cat)
    Anyway, PRE-CAT! definately worth it, makes a world of difference
    I'm after another Coupe Turbo

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    zafgsi's Avatar
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    i got 220bhp/210lb-ft from just airbox mods,panel filter,dump valve and iridium plugs
    have since fitted a turbo back system and powerpipe, wonder what difference they have made
    if i get on a rr anytime soon i'll post up the results
    no comment

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    Turbo_Cabrio's Avatar
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    Just from the air box mods etc and pre cat i would think around 10bhp ish

    when you get the full system and remap should be around 240bhp

    i have just had a CS1 remap with turbo back system inc 200 cell sports cat and K&N filter etc i got 239.9BHP and 259.9 lb/ft of torque. if that helps you!
    2003 Convertible Turbo, Vectra c in take pipe, airbox mod, K&N filter,irredium plugs, Bailey Dump Valve with power pipe, Full Miltek Exhaust system, CS1. 240bhp 260 lb/ft

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    dannysport18's Avatar
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    air box mods an exhaust should give you 10 to 20bhp with out a remap but with a remap they will help the engine run cooler as the exhaust gas is getting out faster
    next step is a intercooler then the Remap so cooler going in an its going out better

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    Enkidu's Avatar
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    I wouldn't say 10 bhp to be honest, I would say about 8 max....
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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