 anyone ever hollow out their downpipe? |
 May 10, 2012 - 8:47 PM
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 Enthusiast  Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%)  |
I'll be running a 3" high flow cat with 2.5 reducers on each side, I just noticed that the stock Gen III 3sgte downpipe has a cat built into it. I know some downpipes will kill drill bits and others you can pound out with a hammer if you spend a few hours..lol. I want to hollow it out though, are the downpipe internals hard to gut?
-------------------- -Jay
95 GT conv. project car: Manual, Gen III 3sgte, JN pisons, Eagle rods, overbore, crank knife-edged, crank scraper, ARP head/main/flywheel, Autronic EMS, Haltech Dual Wideband O2 controller, Audi 1.8T individual coils, FMIC and SSQV BOV, 3" downpipe, 3" ultra-high-flow cat, 2.5" Borla muffler, +other 01 S2000: FMIC, Haltech EMS, Haltech wideband, 570cc inj, forged pistons/rods, sleeved block, 5 angle valve job, ported and polished 02 R6, all stock, except for braided stainless brake lines, frame sliders, and adjustable brake/clutch leve |
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May 11, 2012 - 10:39 PM
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Enthusiast Joined May 13, '06 From Kaimuki, HI Currently Offline Reputation: 10 (100%) |
It's not very hard, i took my cheap ryobi drill with an irwin auger bit and drilled 5 holes in a straight line from one side to the other. Then separated the sides from the housing with a long screwdriver and hammer. The two middle halves came out with a little force after that. Chiseled out the rest of the pieces that were stuck and wirebrushed it. All in all it took about 1.5 hours. Now I have a hollow DP! yay!!
 
-------------------- -Jay
95 GT conv. project car: Manual, Gen III 3sgte, JN pisons, Eagle rods, overbore, crank knife-edged, crank scraper, ARP head/main/flywheel, Autronic EMS, Haltech Dual Wideband O2 controller, Audi 1.8T individual coils, FMIC and SSQV BOV, 3" downpipe, 3" ultra-high-flow cat, 2.5" Borla muffler, +other 01 S2000: FMIC, Haltech EMS, Haltech wideband, 570cc inj, forged pistons/rods, sleeved block, 5 angle valve job, ported and polished 02 R6, all stock, except for braided stainless brake lines, frame sliders, and adjustable brake/clutch leve |
Posts in this topic
match220 anyone ever hollow out their downpipe? May 10, 2012 - 8:47 PM
Jazon256 Yeah, I'd be really interested if anyone's... May 10, 2012 - 11:25 PM
match220 QUOTE (Jazon256 @ May 10, 2012 - 6:2... May 10, 2012 - 11:41 PM JozhGoober I've hollowed out the downpipe cat on my MR2... May 11, 2012 - 8:38 AM playr158 Why not buy an Ebay downpipe or something? they ar... May 11, 2012 - 9:18 AM match220 QUOTE (playr158 @ May 11, 2012 - 4:1... May 11, 2012 - 1:03 PM Kwanza26 QUOTE (match220 @ May 11, 2012 - 7:0... May 11, 2012 - 8:20 PM match220 QUOTE (Kwanza26 @ May 11, 2012 - 3:2... May 11, 2012 - 8:25 PM match220 QUOTE (Kwanza26 @ May 11, 2012 - 3:2... May 11, 2012 - 8:43 PM presure2 that bottom half of the downpipe that contains the... May 12, 2012 - 7:55 AM delusionz QUOTE (presure2 @ May 13, 2012 - 12... May 12, 2012 - 9:32 AM match220 The factory outlet of the DP is 2.75 inches, this ... May 12, 2012 - 1:37 PM delusionz your car, your call, but i don't agree your sm... May 13, 2012 - 5:36 AM presure2 match, do some research.
the cast elbow and large ... May 13, 2012 - 7:09 AM qatar11 PSA
Moto-IQ Article on Exhaust
/PSA May 13, 2012 - 8:14 AM match220 QUOTE (delusionz @ May 13, 2012 - 12... May 13, 2012 - 11:16 AM match220 delusionz and pressure2,
I just read your comments... May 13, 2012 - 7:03 PM delusionz 4 words...
mild steel & ceramic coating May 15, 2012 - 1:21 AM match220 QUOTE (delusionz @ May 14, 2012 - 8... May 15, 2012 - 4:40 AM |
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