Is there a difference between 1.4 and 1.8 test pipe?

[vento]

I still have a 1.8 test pipe sitting around from my old sonic, will it fit onto the 1.4? Getting the RS and am not looking to get a full turbo back, I just want to open it up a little.

 

[$ub$onic]

Nope, same thing. It will fit. At least it should fit the rs

 

[vento]

Okay, last question... Will removing the cat and putting the ddm pipe in negatively effect backpressure? Since I'm going from a small pipe to large and back to small? Or will the fact I'm removing a major restriction negate any effect that might have?

 

[$ub$onic]

You should see little to no change I would think. If anything else it will change the noise a little. You have the pipe might as well put it in

 

[$ub$onic]

The cat bolts to the mid pipe and the resonator bolts to the cat. Where the cat and resonator meet is the last bolts in the exhaust

 

[$ub$onic]

A test pipe will increase sound a little. Beat bet for under 200 is go to a exhaust shop and have them cut the muffler off and add a pipe and tip


I can't say much I have 600 in my exhaust alone

 

[laborsmith]

hmm interesting, thanks! i guess i just didn't look hard enough haha. if i were to buy this test pipe; what will i expect? will the sound change at all? thats basically what i'm looking to get without spending a lot on a cat back; if the test pipe wont change sound too much then what would you suggest and keeping it under $200? trying to keep the price down obviously and probably just being too optimistic with that max price haha. the rest of my exhaust is stock

If you have the turbo engine, just remove the muffler and replace it with a straight pipe. I imagine your nearest muffler shop could do that. Keep the resonator, it does not effect the decibels but does remove annoying exhaust sounds.

Laborsmith

 

[laborsmith]

Keep the cats in place and warranty will be ok. Take a cat out and warranty will not be ok for emissions, but the rest will be ok.

Everything after the second cat is related to noise reduction and moving exhaust fumes from under the passenger compartment but I think more for noise reduction than anything else.

Laborsmith

 

[mitdr774]

A test pipe will increase sound a little. Beat bet for under 200 is go to a exhaust shop and have them cut the muffler off and add a pipe and tip


I can't say much I have 600 in my exhaust alone

I'm about $1300-1400 in my exhaust.

 

[vento]

Got it installed, managed to reuse the stock gaskets (only 50 miles on the car, they are in great shape) Didn't realize how much play there was with lining it up, had to wrangle up some bolts/nuts/washers from the parts bin for makeshift studs to connect to the catback.

No noticeable noise difference other than a harmonic/NVH frequency at 1000 RPM,a really deep burble, but at idle and at speed I dont hear anything new. Performance is unchanged, I know with turbo cars the downpipe is the most major restriction. Will probably look into it down the road.

 

[slitzell]

You have the pipe might as well put it in

That is what she said lol

 

[mitdr774]

I must have a bastard car. I have yet to find a direct bolt in test pipe or high flow cat.

 

[SONIC1.4]

I'm about $1300-1400 in my exhaust.

Cool story bro

 

[shooK]

Cool story bro

indeed it is cool