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  1. #1
    Metro's Avatar
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    Quick question on custom exhaust systems

    Evening all, I've just had a friend on the phone saying he's talked to a custom exhaust guy about getting a discount on getting a system for both of our cars, in regards to these 1.8t engines ive done some reading that to make a difference with an exhaust system I'd need to get a bigger bore down pipe. I'd rather not loose my cat or buy a new one, but are the cats on the existing down pipe or after?

    Has anyone had a full custom job done and kept their existing cat and how much roughly has it cost? I'm being quoted between £380 and £430.

    Audi A3 1.8t AUM
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    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
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  3. #2
    Customboy's Avatar
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    At that price u can just go and buy a miltek system mate and a bigger down pipe does make alot of difference with a decat it's less restrictive, I've done it on my car and I'm glad I did I do have a sports cat for sale if ur interested only covered 100 miles! On my Audi 1999 1.8t the cat is after the downpipe mate hope this helps
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  4. #3
    Customboy's Avatar
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    This link should help just look at the pics on this thread

    finally got my 3" down pipe and decat fitted today
    p

    THE BLUE BEAST, TAKEN FROM ME, GONE BUT NOT FORGOTTEN
    RTECH STAGE 2 REMAP NOW RUNNING 223 BHP AND 253 FTLB OF TORQUE,
    SUBARU IMPREZA WRX ESTATE SOON TO BE RUNNING 340 BHP
    ANTI LAG/LAUNCH CONTROL/MAF LESS/ LOVE IT !!

  5. #4
    Metro's Avatar
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    Thankyou very much for the link ill just look through it now. I was wanting a custom job because I've got somepretty specific ideas on what I want out of it that I'm guessing I wouldnt get going for an off the shelf solution. I don't like noisy cars, i know I'd get more of a grunt with a less restrictive system but ive heard that a custom exhaust can be tuned with baffles to reduce noise.

    Audi A3 1.8t AUM
    Forge 007p, Pipercross Panel Filter, Eibach Prokit 35mm drop, EBC Green Stuff Pads
    Groved Disks, HEL Braided Brake Lines with Dot 5.1 fluid.
    Creation Motorsport Silicone TIP,
    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
    8k HID Kit, 8k LED Side Lights, 8k Number Plate LED




  6. #5
    S3featesV9's Avatar
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    Tried longlife? They do custom jobs. I had a custom centre section done to go with my scorpion back box, £100 IIRC. Still using standard Downpipe and cat too.

    Sounds epic when you want it too, other than that it's quiet as you like.
    MODS - Custom Code phase 1, 007p DV, various powerflex bushes, EBC grooved and drilled - red stuff pads, N249 deletion. Badger5 V2 80mm TIP. Scorpion backbox + custom centre section, LCR front splitter, Jetex Fr-08001, R32 rear ARB, Forged IE rifle drilled rods, 20mm rear & 15mm front spacers.

    TO DO - Coilovers, adjustable tie arms, DP/mani/decat, FMIC and new remap


  7. #6
    Metro's Avatar
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    Cheers ill look in to them!

    Audi A3 1.8t AUM
    Forge 007p, Pipercross Panel Filter, Eibach Prokit 35mm drop, EBC Green Stuff Pads
    Groved Disks, HEL Braided Brake Lines with Dot 5.1 fluid.
    Creation Motorsport Silicone TIP,
    N75 hoses, DV Hose & 10mm Rear Wheel Spacers
    Powerflex Rear Beam Bushes & Diesel Dog Bone Bush
    8k HID Kit, 8k LED Side Lights, 8k Number Plate LED




  8. #7
    Jimgrim77's Avatar
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    Quote Originally Posted by metromaster View Post
    Evening all, I've just had a friend on the phone saying he's talked to a custom exhaust guy about getting a discount on getting a system for both of our cars, in regards to these 1.8t engines ive done some reading that to make a difference with an exhaust system I'd need to get a bigger bore down pipe. I'd rather not loose my cat or buy a new one, but are the cats on the existing down pipe or after?

    Has anyone had a full custom job done and kept their existing cat and how much roughly has it cost? I'm being quoted between £380 and £430.
    I had a full custom with 200 call sport cat with 3" downpipe on my s3 and paid about £650 all in including labour. Yours should be cheaper as the downpipe is a pain to fit with 4 wheel prop shaft in the way and therefore easier fitment.

    If done with decent steel and quality workmanship, your quote is reasonable.

    Ming Blue S3, Stage 3 Hybrid Turbo, Custom Map, Bosch 480 injectors, Custom TIP, Forge FMIC, 3" Downpipe, 200 Cell Sport CAT, Full Stainless, XS Power Mani, 6 Paddle Clutch, Red silicone hoses, LCR Brembo's, Forge 007p, KW Suspension Kit, Green filter, THS Mounts, 11mm & 16mm spacers, H&R Anti-roll bars, RS6 18" alloys, Michelin PS3's, Red Dog Bone Mount, Neuspeed quickshift, Boost Gauge, Aero wipers, LCR splitter, Forge Tie-bars, LED bulbs, Armrest, Custom TT pedals.

 

 

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